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Bone & Joint Open
Vol. 5, Issue 3 | Pages 227 - 235
18 Mar 2024
Su Y Wang Y Fang C Tu Y Chang C Kuan F Hsu K Shih C

Aims. The optimal management of posterior malleolar ankle fractures, a prevalent type of ankle trauma, is essential for improved prognosis. However, there remains a debate over the most effective surgical approach, particularly between screw and plate fixation methods. This study aims to investigate the differences in outcomes associated with these fixation techniques. Methods. We conducted a comprehensive review of clinical trials comparing anteroposterior (A-P) screws, posteroanterior (P-A) screws, and plate fixation. Two investigators validated the data sourced from multiple databases (MEDLINE, EMBASE, and Web of Science). Following PRISMA guidelines, we carried out a network meta-analysis (NMA) using visual analogue scale and American Orthopaedic Foot and Ankle Score (AOFAS) as primary outcomes. Secondary outcomes included range of motion limitations, radiological outcomes, and complication rates. Results. The NMA encompassed 13 studies, consisting of four randomized trials and eight retrospective ones. According to the surface under the cumulative ranking curve-based ranking, the A-P screw was ranked highest for improvements in AOFAS and exhibited lowest in infection and peroneal nerve injury incidence. The P-A screws, on the other hand, excelled in terms of VAS score improvements. Conversely, posterior buttress plate fixation showed the least incidence of osteoarthritis grade progression, postoperative articular step-off ≥ 2 mm, nonunions, and loss of ankle dorsiflexion ≥ 5°, though it underperformed in most other clinical outcomes. Conclusion. The NMA suggests that open plating is more likely to provide better radiological outcomes, while screw fixation may have a greater potential for superior functional and pain results. Nevertheless, clinicians should still consider the fragment size and fracture pattern, weighing the advantages of rigid biomechanical fixation against the possibility of soft-tissue damage, to optimize treatment results. Cite this article: Bone Jt Open 2024;5(3):227–235


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_7 | Pages 23 - 23
8 May 2024
Jayatilaka M Fisher A Fisher L Molloy A Mason L
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Introduction. The treatment of posterior malleolar fractures is developing. Mason and Molloy (Foot Ankle Int. 2017 Nov;38(11):1229-1235) identified only 49% of posterior malleolar rotational pilon type fractures had syndesmotic instabilities. This was against general thinking that fixation of such a fragment would stabilize the syndesmosis. Methods. We examined 10 cadaveric lower limbs that had been preserved for dissection at the Human Anatomy and Resource Centre at Liverpool University in a solution of formaldehyde. The lower limbs were carefully dissected to identify the ligamentous structures on the posterior aspect of the ankle. To compare the size to the rotational pilon posterior malleolar fracture (Mason and Molloy 2A and B) we gathered information from our posterior malleolar fracture database. 3D CT imaging was analysed using our department PACS system. Results. The PITFL insertion on the posterior aspect of the tibia is very large. The average size of insertion was 54.9×47.1mm across the posterior aspect of the tibia. Medially the PITFL blends into the sheath of tibialis posterior and laterally into the peroneal tendon sheath. 78 posterior lateral and 35 posterior medial fragments were measured. On average, the lateral to medial size of the posteromalleolar fragment was 24.5mm in the posterolateral fragment, and 43mm if there is a posteromedial fragment present also. The average distal to proximal size of the posterolateral fragment was 24.5mm and 18.5mm for the posteromedial fragment. Conclusion. The PITFL insertion on the tibia is broad. In comparison to the average size of the posterior malleolar fragments, the PITFL insertion is significantly bigger. Therefore, for a posterior malleolar fracture to cause posterior syndesmotic instability, a ligamentous injury will also have to occur. This explains the finding by Mason and Molloy that only 49% of type 2 injuries had a syndesmotic injury on testing


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_13 | Pages 8 - 8
17 Jun 2024
Aamir J Caldwell R Long S Sreenivasan S Mayrotas J Panera A Jeevaresan S Mason L
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Background. Many approaches to management of medial malleolar fractures are described in the literature however, their morphology is under investigated. The aim of this study was to analyse the morphology of medial malleolar fractures to identify any association with medial malleolar fracture non-union or malunion. Methods. Patients who had undergone surgical fixation of their MMF were identified from 2012 to 2022, using electronic patient records in a single centre. Analysis of their preoperative, intraoperative, and postoperative radiographs was performed to determine their morphology and prevalence of non-union and malunion. Lauge-Hansen classification was used to characterise ankle fracture morphology and Herscovici classification to characterise MMF morphology. Results. A total of 650 patients were identified across a 10-year period which could be included in the study. The overall non-union rate for our cohort was 18.77% (122/650). The overall malunion rate was 6.92% (45/650). There was no significant difference in union rates across the Herscovici classification groups. Herscovici type A fractures were significantly more frequently malreduced at time of surgery as compared to other fracture types (p=.003). Medial wall blowout combined with Hercovici type B fractures showed a significant increase in malunion rate. There is a higher rate of bone union in patients who have been anatomically reduced. Conclusion. The morphology of medial malleolar fractures does have an impact of the radiological outcome following surgical management. Medial wall blowout fractures were most prevalent in adduction-type injuries; however, it should not be ruled out in rotational injuries with medial wall blowouts combined with and Herscovici type B fractures showing a significant increase in malunions. Herscovici type A fractures had significantly higher malreductions however the clinical implications of mal reducing small avulsions is unknown


Bone & Joint Open
Vol. 5, Issue 3 | Pages 252 - 259
28 Mar 2024
Syziu A Aamir J Mason LW

Aims. Posterior malleolar (PM) fractures are commonly associated with ankle fractures, pilon fractures, and to a lesser extent tibial shaft fractures. The tibialis posterior (TP) tendon entrapment is a rare complication associated with PM fractures. If undiagnosed, TP entrapment is associated with complications, ranging from reduced range of ankle movement to instability and pes planus deformities, which require further surgeries including radical treatments such as arthrodesis. Methods. The inclusion criteria applied in PubMed, Scopus, and Medline database searches were: all adult studies published between 2012 and 2022; and studies written in English. Outcome of TP entrapment in patients with ankle injuries was assessed by two reviewers independently. Results. Four retrospective studies and eight case reports were accepted in this systematic review. Collectively there were 489 Pilon fractures, 77 of which presented with TP entrapment (15.75%). There were 28 trimalleolar fractures, 12 of which presented with TP entrapment (42.86%). All the case report studies reported inability to reduce the fractures at initial presentation. The diagnosis of TP entrapment was made in the early period in two (25%) cases, and delayed diagnosis in six (75%) cases reported. Using modified Clavien-Dindo complication classification, 60 (67%) of the injuries reported grade IIIa complications and 29 (33%) grade IIIb complications. Conclusion. TP tendon was the commonest tendon injury associated with pilon fracture and, to a lesser extent, trimalleolar ankle fracture. Early identification using a clinical suspicion and CT imaging could lead to early management of TP entrapment in these injuries, which could lead to better patient outcomes and reduced morbidity. Cite this article: Bone Jt Open 2024;5(3):252–259


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_11 | Pages 317 - 317
1 Jul 2014
Mangnus L Meijer D Mellema J Veltman W Steller E Stufkens S Doornberg J
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Summary. Quantification of Three-Dimensional Computed Tomography (Q3DCT) is a reliable and reproducible technique to quantify and characterise ankle fractures with a posterior malleolar fragment (. www.traumaplatform.org. ). This technique could be useful to characterise posterior malleolar fragments associated with specific ankle fracture patterns. Introduction. Fixation of posterior malleolar fractures of the ankle is subject of ongoing debate1. Fracture fixation is recommended for fragments involving 25–30% of articular surface1. However, these measurements -and this recommendation- are based on plain lateral radiographs only. A reliable and reproducible method for measurements of fragment size and articular involvement of posterior malleolar fractures has not been described. The aim of this study is to assess the inter-observer reliability of Quantification using Three-Dimensional Computed Tomography (Q3DCT) –modelling. 2,3,4,5. for fragment size and articular involvement of posterior malleolar fractures. We hypothesize that Q3DCT-modelling for posterior malleolar fractures has good to excellent reliability. Patients & Methods. To evaluate inter-observer reliability of Q3DCT-modelling, we included a consecutive series of 43 patients with an ankle fracture involving the posterior malleolus and a complete radiographic documentation (radiographs and computed tomography) Fractures of the tibial plafond (pilon type fractures) were excluded. These 43 patients were divided in 3 different types (Type I, II or III) as described by Haraguchi6. Five patients of each type were randomly selected for an equal distribution of articular fragment sizes. 3D models were reconstructed by 1) creating a mask for every respective slice; 2) select the appropriate dots that separate fracture from tibialshaft; 3) connect masks of each respective slice; and 4) reconstruct a 3D-mesh. After reconstruction of 3D-models, 1) fragment volume; 2) articular surface of the posterior malleolar fragment; 3) articular surface of intact tibia and 4) articular surface of the medial malleolus were calculated by all three observers. A summary of this technique is shown on . www.traumaplatform.org. The inter-observer reliability of these measurements was calculated using the ICC, which can be interpreted as the kappa coefficient. Results. Measurements of the volume of posterior malleolar fracture fragments ranged from 357 to 2904 mm3 with an ICC of 1.00 (Confidence interval (CI) 0.999 – 1.000) Measurements of the articular surface of the posterior malleolar fracture fragment ranged from 25 to 252 mm2 with an ICC of 0.998 (CI 0.996 – 0.999); the articular surface of the intact tibia plafond ranged from 375 to 1124 mm2 (ICC 0.998, CI 0.996 – 0.999); and the articular surface of the medial malleolus ranged from 79 to 149 mm2 (ICC 0.978, CI 0.978 – 0.911). The categorical ratings for all ICC's were defined as almost perfect according to the system of Landis7. Discussion/Conclusion. This study showed that our Q3DCT-modelling technique. 2,3,4,5. is reliable and reproducible to reconstruct ankle fractures, in order to assess fracture characteristics of posterior malleolar fracture fragments. Future research will focus on the association between overall ankle fracture patterns according to Lauge-Hansen, and characterization of posterior malleolar fragment morphology. We hypothesise that supination-exorotation type fractures are associated with smaller (in volume and involved articularsurface) “pull-off” fragments, while pronation-exorotation type ankle fractures are associated with larger (in volume and involved articular surface) “push-off” fragments. The clinical relevance might be that smaller “pull-off” type fractures benefit from positioning screws, while larger “push-off” type fractures require direct open reduction and internal fixation of the posterior malleolar fragment


Orthopaedic Proceedings
Vol. 102-B, Issue SUPP_8 | Pages 84 - 84
1 Aug 2020
Kubik J Johal H Kooner S
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The optimal management of rotationally-unstable ankle fractures involving the posterior malleolus remains controversial. Standard practice involves trans-syndesmotic fixation (TSF), however, recent attention has been paid to the indirect reduction of the syndesmosis by repairing small posterior malleolar fracture avulsion fragments, if present, using open reduction internal fixation. Posterior malleolus fixation (PMF) may obviate the need for TSF. Given the limited evidence and diversity in surgical treatment options for rotationally-unstable ankle fractures with ankle syndesmosis and posterior malleolar involvement, we sought to assess the research landscape and identify knowledge gaps to address with future clinical trials. We performed a scoping review to investigate rotational ankle fractures with posterior malleolar involvement, utilizing the framework originally described by Arksey and O'Malley. We searched the English language literature using the Ovid Medline and Embase databases. All study types investigating rotationally-unstable ankle fractures with posterior malleolus involvement were categorized into defined themes and descriptive statistics were used to summarize methods and results of each study. A total of 279 articles published from 1988 to 2018 were reviewed, and 70 articles were included in the final analysis. The literature consists of studies examining the surgical treatment strategies for PMF (n=21 studies, 30%), prognosis of rotational ankle fractures with posterior malleolar involvement (n=16 studies, 23%), biomechanics and fracture pattern of these injuries (n=13 studies, 19%), surgical approach and pertinent anatomy for fixation of posterior malleolus fractures (n=12 studies, 17%), and lastly surgical treatment of syndesmotic injuries with PMF compared to TSF (n=4 studies, 6%). Uncontrolled case series of single treatment made up the majority of all clinical studies (n=44 studies, 63%), whereas controlled study designs were the next most common (n=16 studies, 23%). Majority of research in this field has been conducted in the past eight years (n=52 studies, 74%). Despite increasing concern and debate among the global orthopaedic community regarding rotationally-unstable ankle fractures with syndesmosis and posterior malleolar involvement, and an increasing trend towards PMF, optimal treatment remains unclear when comparing TSF to PMF. Current research priorities are to (1) define the specific injury pattern for which PMF adequately stabilizes the syndesmosis, and (2) conduct a randomized clinical trial comparing PMF to TSF with the assistance of the orthopaedic community at large with well-defined clinical outcomes


Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_14 | Pages 6 - 6
1 Dec 2015
Marlow W Molloy A Mason L
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There is an increasing acceptance that the clinical outcomes following posterior malleolar fractures are less than satisfactory. Current ankle classification systems do not account for differences in fracture patterns or injury mechanisms, and as such, the clinical outcomes of these fractures are difficult to interpret. The aim of this study was to analyse our posterior malleolar fractures to better understand the anatomy of the fracture. In a series of 42 consecutive posterior malleolar, who all underwent CT imaging, we have described anatomically different fracture patterns dictated by the direction of the force and dependent on talus loading. We found 3 separate categories. Type 1 – a rotational injury in an unloaded talus resulted in an extraarticular posterior avulsion of the posterior ligaments. This occurred in 10 patients and was most commonly associated with either a high fibular spiral fracture or a low fibular fracture with Wagstaffe fragment avulsion. The syndesmosis was usually disrupted in these patients. Type 2 – a rotational injury in a loaded talus resulting in a posterolateral articular fracture, of the posterior incisura. This occurred in 16 patients and was most commonly associated with a posterior syndesmosis injury, low fibular spiral fracture and an anterior collicular fracture of the medial malleolus. Type 3 – axially loaded talus in plantarflexion causing a posterior pilon. This occurred in 16 patients and was most commonly associated with a long oblique fracture of the fibular and a Y shape fracture of the medial malleolus. The syndesmosis was usually intact in these patients. In conclusion, the anatomy of the posterior malleolar should not be underestimated and requires careful consideration during treatment and categorisation in outcome studies to prevent misinterpretation


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_21 | Pages 11 - 11
1 Dec 2017
Kaye A Widnall J Redfern J Alsousou J Molloy A Mason L
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Background. There is an increasing acceptance that the clinical outcomes following posterior malleolar fractures are less than satisfactory. In our previous multicenter study (Powell, BOFAS 2016) we showed that the Olerud-Molander Ankle Score (OMAS) was 79 for unimalleolar fractures and 65 for bi malleolar fractures, however it dropped significantly to 54 in trimalleolar fractures. In creating a treatment guiding classification, we report our results in a system change in management of posterior malleolar fractures in our unit. Method. All fractures were classified according to Mason and Molloy classification (BOFAS 2015, FAI 2017) based on CT scans obtained pre-operatively. This dictated the treatment algorithm. Type 1 fractures underwent syndesmotic fixation. Type 2A fractures underwent ORIF through a posterolateral incision, and type 2B and 3 fractures underwent ORIF through a posteromedial incision. The patient remained NWB for 6 weeks postoperative. Data was collected from December 2014 to July 2017. Results. Patient related outcome measures were obtained in 50 patients with at least 6 month follow up (mean 18 months). According to Mason and Molloy classification there were 17 type 1, 12 type 2A, 10 type 2B and 11 type 3. The mean OMAS for type 1 was 75.9 (Range 30–100, SD 18.4), type 2A 75.0 (range 35–100, SD 21.3), type 2B 74.0 (range 55–100, SD 13.7) and type 3 70.5 (Range 35–100, SD 17.1). An increase in OMAS of 4 is clinically significant. Conclusion. We have been able demonstrate an improvement in OMAS for all posterior malleolar fractures with the treatment algorithm applied using the Mason and Molloy classification. Compared to our previous study we have successfully increased our OMAS scores to what would be expected from unimalleolar fractures. Mason and Molloy type 3 fractures have marginally poorer outcomes, which correlates with a more significant injury, however this does not reach statistical significance


Orthopaedic Proceedings
Vol. 105-B, Issue SUPP_3 | Pages 1 - 1
23 Feb 2023
Chong S Khademi M Reddy K Anderson G
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Treatment of posterior malleolar (PM) ankle fractures remain controversial. Despite increasing recommendation for small PM fragment fixation, high quality evidence demonstrating improved clinical outcomes over the unfixated PM is limited. We describe the medium-to-long term clinical and radiographical outcomes in younger adult patients with PM ankle fractures managed without PM fragment fixation. A retrospective cohort study of patients aged 18–55 years old admitted under our orthopaedic unit between 1st of April 2009 and 31st of October 2013 with PM ankle fractures was performed. Inclusion criteria were that all patients must mobilise independently pre-trauma, have no pre-existing ankle pathologies, and had satisfactory bimalleolar and syndesmotic stabilisation. Open fractures, talar fractures, calcaneal fractures, pilon fractures, subsequent re-injury and major complications were excluded. All PM fragments were unfixated. Clinical outcomes were evaluated using Foot and Ankle Ability Measure (FAAM) with activities of daily living (ADL) and sports subscale, visual analogue scale (VAS) and patient satisfaction ratings. Osteoarthrosis was assessed using modified Kellgren-Lawrence scale on updated weightbearing ankle radiographs. 61 participants were included. Mean follow-up was 10.26 years. Average PM size was 16.19±7.39%. All participants were evaluated for clinical outcomes, demonstrating good functional outcomes (FAAM-ADL 95.48±7.13; FAAM-Sports 86.39±15.52) and patient satisfaction (86.16±14.42%), with minimal pain (VAS 1.13±1.65). Radiographical outcomes were evaluated in 52 participants, showing no-to-minimal osteoarthrosis in 36/52 (69.23%), mild osteoarthrosis in 14/52 (26.92%) and moderate osteoarthrosis in 2/52 (3.85%). Clinical outcomes were not associated with PM fragment size, post-reduction step-off, dislocation, malleoli fractured or syndesmotic injury. PM step-off and dislocation were associated with worse radiographical osteoarthrosis. Other published medium-to-long term studies reported overall good outcomes, with no differences after small fragment fixation. The unfixated smaller posterior malleolus fragment demonstrated overall satisfactory clinical and radiographical outcomes at 10-year follow-up and may be considered a valid treatment strategy


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_21 | Pages 4 - 4
1 Dec 2017
Wong-Chung J Lynch-Wong M Gibson D Tucker A
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Background. This study analyzes position of the peroneal tendons and status of the superior peroneal retinaculum (SPR) whenever a lateral malleolar bony flake fracture occurs. Methods. Twenty-four patients had a lateral malleolar bony fleck on anteroposterior ankle radiographs, either in isolation or associated with other hindfoot injuries. We studied size of the bony flecks, presence or absence of peroneal tendon dislocation and pathoanatomy on CT scans. Results. In 11 patients, a small bony fleck lies within the superior peroneal retinaculum and contiguous periosteum, which are stripped off the lateral fibula (Class II lesions). Tendons dislocate into the subperiosteal pouch thus formed, resembling Class I lesions without associated bony avulsion. Treatment for Class II is same as for Class I injuries. In 8 patients with big bony fleck, tendons dislocate into the fracture site and SPR is intact (Class III lesions). Surgical approach for tendon relocation and bone fixation differs. In particular, the intact attachment of the SPR on the bony fleck must not be incised. The healing process of neglected Class III lesions resembles a groove deepening procedure, representing an attempt to form a stable platform for the dislocated tendons. A neglected Class II lesion resembles a neglected Class I lesion. In Class IV lesions, observed in 5 patients with 2-part calcaneal fracture/dislocation, SPR remains intact and peroneal tendons are not dislocated. The invariably large fleck results from the displacing lateral calcaneal fragment abutting against the fibula, whereas the dislocating tendons cause the bony avulsions in Classes II and III. Conclusions. Due to pathoanatomical differences, surgical approach and natural history of neglected lesions differ depending on size of the bony fleck. The SPR must not be incised in case of big Class III flecks. Beware of false negatives when probing the peroneal tendons intra-operatively in Class III and IV lesions


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_19 | Pages 17 - 17
1 Nov 2016
Bali N Ramasamy A Mitchell S Fenton P
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Introduction. Fixation of posterior malleolar fragments associated with ankle fractures aims to stabilise the syndesmosis and prevent posterior subluxation. Haraguchi described 3 types of posterior malleolar fractures, with type 2 being a medial extension injury, these fractures often involve medial and posterior fragments. We describe the techniques and outcomes for a double window posteromedial approach allowing optimal reduction and stabilisation. Methods. A retrospective review was performed at 2 units, Bristol Royal Infirmary and QE Hospitals Birmingham, between August 2014 and April 2016. Inclusion criteria were all patients having this posteromedial approach for closed ankle fracture fixation. Patients were assessed for complications and postoperative ankle function with the Olerud and Molander scoring system. Results. We identified 9 patients treated over an 18 months with average follow up 9 months (range 4–18 months). All had an ankle dislocation reduced on scene or in ED, with 5 having posterior subluxation of the talus on the original films. None were open injuries. All had fixation of a posteromedial malleolar fragment, with 7 requiring a further direct lateral incision. Olerud and Molander ankle function score averaged at 72 (range 60–85) at short term follow up. Discussion. Approaches to the posteromedial fragments have been previously described in 2 ways. One utilises a window just medial to the Achilles tendon taking the neurovascular bundle medially, while the other approaches between tibialis posterior and FDL taking the neurovascular bundle laterally. Neither delivers complete access to an injury that often has sagittal and coronal splits needing individual reduction and fixation. Our approach over the neurovascular bundle allows 2 safe corridors through a single incision facilitating fragment specific fixation of both the medial and posterior components of the injury. Early results suggest this to be a safe and reliable technique to reduce and stabilise complex posteromedial ankle fractures


Orthopaedic Proceedings
Vol. 92-B, Issue SUPP_II | Pages 355 - 356
1 May 2010
Shah Y Syed T Myszewski T Zafar F
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Introduction: Ankle fractures are common in trauma practice. Traditional teaching has been to use two screws for medial malleolar fixation to achieve better rotational control. However, the evidence for this is limited. This study compares the outcome following either one or two screws for medial malleolar fracture fixation. Materials and Methods: Retrospective analysis of case notes and x-rays of all medial malleolar fracture fixations performed between 2002 to 2007. Two groups were formed (group-I and group-II) depending upon the use of either one or two screws, respectively. Both groups were age and sex matched. Besides patient demographics, fracture pattern according to Dennis–Webber classification, orientation of the medial malleolar fracture, position of screw in relation to fracture, post-operative fracture displacement and union (bony and clinical) were assessed. Patients were also contacted to assess whether they had returned to their pre-injury level of activities. Results: There were total of 76 patients (group-I had 37 and group-II had 39 patients). The majority were females with age range between 19 and 84 years with involvement of the right ankle mostly. In group-I, 15 patients had bi-malleolar Dennis-Webber type B fractures, 9 had bi-malleolar Dennis-Webber type C and 10 had tri-malleolar fractures. 3 had uni-malleolar fracture. In group-II, 20 patients had bi-malleolar Dennis-Webber type B fractures, 9 had bi-malleolar Dennis-Webber type C fractures and there were 5 tri-malleolar fractures. 5 had uni-malleolar fracture. The fracture orientation in both the groups was mostly horizontal than oblique and the screw placement was at an angle to the fracture in the majority of cases in both of them. There was no significant difference between the two groups, in terms of clinical union, post-operative fracture displacement and return of patients to their pre-injury level of activity. Conclusion: Medial malleolar fractures can be efficiently fixed with one screw only, which does not increase the risk of post-operative fracture fragment displacement, compared to using two screws


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXI | Pages 135 - 135
1 May 2012
A. R A. J A. W
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Background. Ankle fractures represent an increasing workload, particularly in the elderly female population. The posterior tibial tendon is exposed to injury during displaced medial malleolar fractures. Posterior tibial tendon dysfunction delays rehabilitation and results in significant morbidity and is most prevalent in women over 40. Objective. To ascertain whether posterior tibial tendon should be routinely explored in displaced medial malleolar fractures and consequently should post-operative rehabilitation of ankle fractures be modified. Intra-operative assessment of the tendon may help with this diagnosis and consequently alter post-operative rehabilitation. Method. We performed a prospective case series of 25 patients with displaced medial malleolar ankle fractures admitted to the Royal Victoria Hospital Belfast between August and November 2009. The admission notes were then checked for any previous injuries and the initial reduction was assessed radiologically. At the time of surgery the primary operator explored the posterior tibial tendon and assessed the tendon for damage using the following scale: nil, bruising, superficial, partial tear, complete tear. Results. The average age was 58. The majority of injuries were Weber B (20/25), bimalleolar (19/25), had an initial satisfactory reduction (19/25) and had the surgery performed by SPR/STR (22/25). The mechanism of injury was reported as mainly supination-external rotation (13/25). Eight patients were reported as having superficial damage and one with a partial rupture. Of note all patients included under the age of forty were reported as having no damage to posterior tibial tendon. Conclusion. This study does not support the routine exploration of the posterior tibial tendon in displaced medial malleolar fractures. However, the study would advocate an altered post-op regime for at risk groups for posterior tibial dysfunction


Orthopaedic Proceedings
Vol. 86-B, Issue SUPP_III | Pages 241 - 241
1 Mar 2004
Velentzas P Apostolou C Kaldis P Giannoulis P Pilichos J Scourtas C
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Introduction: Objective of our study is to present the effect of methylprednisolone sodium succinate (Solu-Medrol) on post-traumatic edema and on skin quality after a malleolar fracture. Material and Methods: 35 patients with an ankle fracture presented in our clinic from October 2001 till April 2002, 14 of whom had a surgical treatment by the day of their admission. The rest of them (a total of 21) were admitted in our clinic and were classified into 3 groups of 7 patients each. In two first groups was administered methylprednisolone in I.V. infusion during the first post-traumatic 8 hrs. Most specifically: In the first group was administered methylprednisolone I.V. in a dosage form of 500 mg every 12 hrs, for a day. In the second group was administered methylprednisolone I.V. in a dosage form of 250 mg every 8 hrs, also for a day, while in the third group there was no methylprednisolone administration. The perimeter of the ankle in lateral malleolus area was measured in both injured and healthy leg, the day of patient’s admission and the day after. The healthy leg was used as a control and skin condition was estimated clinically. Results: In group 3 there was a great increase in injured limb perimeter (of about 4–5 cm) the 2nd day and we found Chassaignac blisters of a good size (about 3–4 cm) in two patients. The first two groups presented a similar result, that means a moderate increase in injured limb perimeter without blister formation or skin necrosis. Discussion: In time intravenous administration of methylprednisolone minimized the post-traumatic edema in malleolar fractures and improved the quality of the skin which is usually an important problem in injuries of that type and prolong the hospitalization of these patients. Dosage of 250 mg x 3 for a day is equally effective compared to bigger doses and we suggest it because of the reduced danger for corticosteroids side effects


Orthopaedic Proceedings
Vol. 86-B, Issue SUPP_II | Pages 154 - 154
1 Feb 2004
Kabbani KT
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The ankle is one of the most resisting to arthritis joints of the body, and the development of degenerative changes in it, always due to a pathologic condition or trauma. The aim of this study is to demonstrate the late post- operative results and the development of post-traumatic osteoarthritis in a series of 144 patients with malleolar fractures who have been operated with the principles and methods of AO. To judge our results, we used subjective, objective and X-Ray criteria. The main follow up was 8,6 years, final results were excellent and good in 74,3%, satisfactory in 14,6 and poor in 11,1% while post-traumatic osteoarthritis developed in 22.2% of the cases. The installation of post-traumatic osteoarthritis in malleolar fractures seems to be influenced by factors like age, sex, severity of fracture, quality of reduction and existence of posterior bone fragment bigger than 25% of the joint surface


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_I | Pages 33 - 33
1 Jan 2011
Jowett A Birks C Blackney M
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Medial malleolar stress fractures are uncommon even in the sporting population. They tend to occur almost exclusively in athletes involved in sports involving running and jumping. We believe that stress fractures of the medial malleolus may be the end stage of chronic anteromedial ankle impingement in elite running and jumping athletes. Anterior impingement spurs are thought to be caused by repetitive microtrauma at the limit of dorsiflexion causing subperiosteal haemorrhage and subsequent ossification. More specifically the lower surface of the anterior tibia and the anterior part of the medial malleolus undergo similar trauma during severe supination injuries. Repetitive trauma to the cartilage from the kicking action in soccer is also thought to play a part, the cartilage responding by the formation of scar tissue and subsequent calcification. We present five cases of elite athletes (three AFLplayers, one sprinter and one A Grade cricketer) who presented to our establishment with vertical stress fractures of the medial malleolus over a three year period (2004–7). In each case preoperative imaging revealed an anteromedial bony spur on the tibia. All patients had the fractures internally fixed and at the same sitting had arthroscopic debridement of the impingement spur. Average time to union was 10.2 weeks (6–16). At most recent review (average 18 months (8–37)) all fractures had united and all patients had resumed sporting activity. No patient had suffered a further fracture of the medial malleolus. We believe this region of impingement causes premature abutment of the talus on the tibia in the supination-adduction motion that in severe trauma leads to the vertical fracture through the medial malleolus according to the Lauge-Hansen classification. We therefore feel it should be addressed at the time of fracture fixation to reduce the re-fracture rate


Orthopaedic Proceedings
Vol. 84-B, Issue SUPP_I | Pages 69 - 69
1 Mar 2002
Jardé O Vernois J Massy S Berthelet J
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Purpose: We report a series of 32 ankle fractures reviewed 15 years after osteosynthesis. Material and methods: The series included 12 fibular fractures, 14 bimalleolar fractures, and six trimalleolar fractures. The Weber classification was: type A four, type B 18, type C ten. Postoperative radiograpphy demonstrated 28 anatomic reductions and four shortened fibulae (3 to 5 cm). The results were assessed using the Harper criteria with a Kitaoka radiographic series. The statistical analysis was done with chi square. Results: At the review 15 years after osteosynthesis, 19 ankles were pain free. Normal mobility was noted in 22 cases, and an absence of oedema in 18. Thirty patients wore normal shoes. Walking was normal in 23 cases; the x-rays revealed tibiotalar narrowing in 12 cases, and lengthenings of the malleolus in 23. Ten cases of tibiotalar narrowings were associated with a long medial malleolus. The objective results were good in 23 cases, fair in eight and poor in one. At fifteen years follow-up, osteoarthritis had developed in 37% of the cases despite anatomic reconstruction in 28. The four fibular shortenings were associated with development of osteoarthritis. Ossification of the medial malleola corresponded to detachment of a non-medial sutured ligament. Ankle osteoarthritis, when present, was particularly well tolerated. Discussion: The long-term results of osteosyntheis for malleolar fractures was good in this series. Success requires perfect restoration of the joint anatomy. Unlike other series reported in the literature, non-surgical treatment of the medial collateral ligament led to medial periarticular ossifications in the very long term and limited joint mobility. We propose surgical suture of the medial collateral ligament


Orthopaedic Proceedings
Vol. 103-B, Issue SUPP_3 | Pages 7 - 7
1 Mar 2021
Heinrichs L Beaupre L Ramadi A Kang SH Pedersen E
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Decreased ankle dorsiflexion is common after injury and may result in patient complaints of stiffness and subsequent injury. The weight-bearing lunge test (WBLT) is a simple clinical measure of dorsiflexion. Previous study has defined a 2.0cm side-to-side discrepancy in WBLT as likely significant. With review of current literature, ankle stiffness is a concept largely undefined; we aim to relate patient complaints of stiffness to WBLT.

This was a population-based inception cohort with longitudinal follow-up. Patients between ages 18–65 receiving surgical fixation for ankle fracture were screened. Pilon/plafond fractures, bilateral injuries, or polytrauma were excluded. At 6-weeks, 6-months, and 1-year WBLT was measured along with non-weight-bearing goniometry; and an Olerud-Molander ankle score completed.

155 patients were recruited (90 female, 65 male; mean age 42, range 20–67). 47% of injuries were unimalleolar, 17% bimalleolar, and 36% trimalleolar; 35% received syndesmotic fixation. 89% of patients reported feeling stiff at 6-weeks, 82% at 6-months, and 74% at 1-year. 98% of patients had ≥2.0cm discrepancy of WBLT at 6-weeks, 78% at 6-months, and 72% at 1-year. Different thresholds of WBLT (larger discrepancy or absolute negative measurement) had worse correlation with patient reported stiffness.

Our population had high incidence of stiffness at 1-year. The proportion of patients complaining of stiffness after ankle fracture was similar to that measured with ≥2.0cm discrepancy of WBLT. This is the first study that we are aware of that relates the WBLT and the previously reported threshold of 2.0cm to stiffness. This measurement may give clinicians a better objective idea regarding patient perception of a “stiff” ankle. Reducing side to side discrepancy in range of motion should be considered in rehabilitation rather than total range of motion.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_17 | Pages 17 - 17
1 Nov 2014
Siddiqui M Brogan K Rymaszewski L Atiya S Kumar CS
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Introduction:. Isolated Weber B lateral malleolus fractures heal uneventfully, but concern that late subluxation may occur due to unrecognised medial ligament tearing, despite an intact mortice on initial radiographs, often results in overtreatment. The aim of this study was to determine the incidence of late talar shift with nonoperative management in a cohort of patients with no initial talar shift, and also record functional outcomes at 16–28 months following injury. Methods:. This was a retrospective review of 129 patients with Weber B lateral malleolar fractures initially referred to the fracture clinic between October 2011 and October 2012. Eight had obvious talar shift and therefore underwent surgery, with the remaining 121 treated in plaster (n=41), a Velcro boot (n=70) or bandage (n=10). No stress x-rays or MRI scans were performed. Weight-bearing was permitted as pain allowed. Radiographs taken on discharge from the clinic were reviewed to assess talar shift. Functional outcomes assessment was carried out using Manchester Oxford Foot Questionnaire and Olerud-Molander score. Results:. None of the 121 patients had talar shift initially; 21 patients where medial injury was strongly suspected were closely followed and had check x-rays more often (average 2.9 appointments per patient) than the other groups. No patients had talar shift in any of the subsequent x-rays and therefore none underwent delayed internal fixation. The mean MOXFQ and Olerud-Molander scores were 27 and 78 respectively in 57 patients and the functional outcomes were not influenced by type of immobilisation or suspected medial injury. Conclusion:. Our observation is that the risk of late talar shift is likely to be low in patients where initial x-rays had showed no talar displacement. It may be unnecessary to perform additional tests/imaging to establish the integrity of the medial ligament as satisfactory functional results are routinely observed


Orthopaedic Proceedings
Vol. 85-B, Issue SUPP_III | Pages 227 - 227
1 Mar 2003
Psychoyios V Cooke P
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Introduction: We describe an operation, which have performed in patients with rheumatoid arthritis, valgus deformities of the ankle and hind foot with overlying ulcer.

Materials and Methods: The operation has been performed in seven female patients with an average age of 69 years. All patients had severe functional problems.

Technique: The ulcer is excised through an elliptical incision and the medial malleolous is excised level with the ankle joint. Then the tibia surface is osteotomized just above the ankle joint with a planar cut perpendicular to the long axis of the tibia in both saggital and coronal planes. The talus is also transected, with the cut parallel to the sole of the foot and the arthrodesis is closed. The patient starts to mobilize weight bearing in a POP cast with an over boot with rigid sole and rocher in 2–3 days. After 8 weeks the patient is transferred to a shoe with fixed double iron attached. This is retained until radiological union occurs.

Results: Primary healing of the skin was obtained in all cases. Each patient was able to walk within the bounds of their disease early after surgery. In every case union has been delayed. No patient has had recurrent deformity or ulceration.

Conclusion: Such deformity severely impairs the functional status of the patient and may threaten the viability of the foot. Primary surgery with excision of the medial malleolous and correction of the deformity of the ankle has proved successful in treating pain, deformity and ulceration in this small series.