Aims. The morphology of
The AO Foundation advocates the use of partially
threaded lag screws in the fixation of fractures of the medial malleolus.
However, their threads often bypass the radiodense physeal scar
of the distal tibia, possibly failing to obtain more secure purchase
and better compression of the fracture. We therefore hypothesised that the partially threaded screws
commonly used to fix a
Background. Many approaches to management of
Introduction. Unstable ankle fractures are routinely managed operatively. Due to soft-tissue and implant related complications, there has been recent literature reporting on the non-operative management of well-reduced medial malleolus fractures following fibular stabilisation, but with limited evidence supporting routine application. This trial assessed the superiority of internal fixation of well-reduced (displacement ≤2mm) medial malleolus fractures compared with non-fixation following fibular stabilisation. Methods and participants. Superiority, pragmatic, parallel, prospective randomised clinical trial conducted over a four year period. A total of 154 adult patients with a bi- or trimalleolar fractures were recruited from a single centre. Open injuries and vertical
Introduction. Deltoid ligament reconstruction (DLR) is an important factor in the consideration of pes planus deformity. There is little evidence in the literature determining whether DLR could mitigate the risk of patients acquiring flat foot postoperatively following deltoid ligament injury. Aim. Our objective was to establish if there was a difference in pes planus deformity in patients who underwent DLR during their ankle fracture fixation compared to those who did not. Methods. A retrospective analysis of post-operative weight bearing radiographs was performed of patients who underwent ankle fracture fixation. Inclusion criteria were confirmed deltoid instability presurgery without
Introduction. Total ankle replacement (TAR) surgery remains a reasonable alternative to arthrodesis in a select group of patients with end stage ankle joint arthritis. We describe the early results of a prospective study of the first 50 Zenith total ankle replacements performed by a single surgeon (SKG). Methods. Demographic details, Visual Analogue Score (VAS) for pain (0, no pain; 10, worst possible pain), AOFAS scores, ‘would have surgery again’ and satisfaction levels were collated, pre-operatively and at their most recent outpatient review. Any post-operative complications were noted. Radiographs were also assessed for evidence of loosening, progressive osteolysis, subsidence and overall alignment of the implant. Results. One patient died at 25 months following surgery from unrelated causes. No patients have been lost to follow up. A review of 50 patients (35 males, 15 females; mean age 65 years, range 44–88 years) with a mean follow up of 30 months (range 11–48) included 48 patients with osteoarthritis and two patients with rheumatoid arthritis. There was one
Introduction:. The aim of this study was to identify the rate of complications of total ankle replacement in a single Centre to help with informed patient consent. Methods:. Between 2008 and 2012, 202 total ankle replacements (TARs) were performed by 4 surgeons at our Institute. Data was collected on all patients; demographics, arthritic disease, pre-operative deformity, prosthesis and all early and late complications. Results:. 4 surgeons (A, B, C, D) performed 63, 55, 48 and 36 TARs (178 De Puy Mobility and 24 Corin Zenith). 130 patients had primary osteoarthrosis, 35 had rheumatoid and 36 had post traumatic osteoarthrosis. There were no differences in patient demographics for each surgeon. There were 3 deep infections (A, B, C, D: 1,0,2,0). There were 18
Introduction. Surgeons, commissioners and patients are increasingly seeking more in depth details on outcomes of total ankle replacement (TAR). We set out to perform a detailed and up to date meta-analysis of the outcomes of TAR, with a focus on PROMS. Methods. We searched MEDLINE, Cochrane, EMBASE, CINAHL and the Science Citation Index databases using the terms “total”; “ankle”; “arthroplasty” or “replacement” to April 2012. We included all languages; series with greater than 20 TAR; minimum 2 years follow-up. We excluded papers on revisions; prostheses no longer marketed; and kin studies. We worked with the Cochrane Collaboration to adopt their methodology including the creation of a risk profile assessing all forms of bias. Results. Of 1841 papers identified, 51 remained for analysis, with a pool of 6719 patients. The mean patient age was 59.3(17–95) and mean BMI was 28.8(19.4–44). 53% of patients were male. The most common indication was posttraumatic osteoarthritis. The majority of the studies were level IV and more than half the studies had several forms of bias. Intraoperative complication rate was 9%, with
We report the medium-term outcomes of a consecutive series of 118 Zenith total ankle arthroplasties (TAAs) from a single, non-designer centre. Between December 2010 and May 2016, 118 consecutive Zenith prostheses were implanted in 114 patients. Demographic, clinical, and patient-reported outcome measures (PROMs) data were collected. The endpoint of the study was failure of the implant requiring revision of one or all of the components. Kaplan-Meier survival curves were generated with 95% confidence intervals (CIs) and the rate of failure calculated for each year.Aims
Methods
In a randomized controlled trial with two-year follow-up, patients treated with suture button (SB) for acute syndesmotic injury had better outcomes than patients treated with syndesmotic screw (SS). The aim of this study was to compare clinical and radiological outcomes for these treatment groups after five years. A total of 97 patients with acute syndesmotic injury were randomized to SS or SB. The five-year follow-up rate was 81 patients (84%). The primary outcome was the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle Hindfoot Scale. Secondary outcome measures included Olerud-Molander Ankle (OMA) score, visual analogue scale (VAS), EuroQol five-dimension questionnaire (EQ-5D), range of movement, complications, reoperations, and radiological results. CT scans of both ankles were obtained after surgery, and after one, two, and five years.Aims
Methods
Total ankle arthroplasty (TAA) surgery is complex and attracts a wide variety of complications. The literature lacks consistency in reporting adverse events and complications. The aim of this article is to provide a comprehensive analysis of each of these complications from a literature review, and to compare them with rates from our Unit, to aid clinicians with the process of informed consent. A total of 278 consecutive total ankle arthroplasties (251 patients), performed by four surgeons over a six-year period in Wrightington Hospital (Wigan, United Kingdom) were prospectively reviewed. There were 143 men and 108 women with a mean age of 64 years (41 to 86). The data were recorded on each follow-up visit. Any complications either during initial hospital stay or subsequently reported on follow-ups were recorded, investigated, monitored, and treated as warranted. Literature search included the studies reporting the outcomes and complications of TAA implants.Aims
Patients and Methods
In a retrospective study we compared 32 HINTEGRA
total ankle replacements (TARs) and 35 Mobility TARs performed between
July 2005 and May 2010, with a minimum follow-up of two years. The
mean follow-up for the HINTEGRA group was 53 months (24 to 76) and
for the Mobility group was 34 months (24 to 45). All procedures
were performed by a single surgeon. There was no significant difference between the two groups with
regard to the mean AOFAS score, visual analogue score for pain or
range of movement of the ankle at the latest follow-up. Most radiological
measurements did not differ significantly between the two groups.
However, the most common grade of heterotopic ossification (HO)
was grade 3 in the HINTEGRA group (10 of 13 TARs, 76.9%) and grade
2 in the Mobility group (four of seven TARs, 57.1%) (p = 0.025).
Although HO was more frequent in the HINTEGRA group (40.6%) than
in the Mobility group (20.0%), this was not statistically significant
(p = 0.065).The difference in peri-operative complications between
the two groups was not significant, but intra-operative medial malleolar
fractures occurred in four (11.4%) in the Mobility group; four (12.5%)
in the HINTEGRA group and one TAR (2.9%) in the Mobility group failed
(p = 0.185). Cite this article:
Involvement of the posterior malleolus in fractures of the ankle
probably adversely affects the functional outcome and may be associated
with the development of post-traumatic osteoarthritis. Anatomical
reduction is a predictor of a successful outcome. The purpose of this study was to describe the technique and short-term
outcome of patients with trimalleolar fractures, who were treated
surgically using a posterolateral approach in our hospital between
2010 and 2014. The study involved 52 patients. Their mean age was 49 years (22
to 79). There were 41 (79%) AO 44B-type and 11 (21%) 44C-type fractures.
The mean size of the posterior fragment was 27% (10% to 52%) of
the tibiotalar joint surface.Aims
Patients and Methods
In this retrospective cohort study, we analysed
the incidence and functional outcome of a distal tibiofibular synostosis.
Patients with an isolated AO type 44-B or C fracture of the ankle
who underwent surgical treatment between 1995 and 2007 were invited
for clinical and radiological review. The American Orthopaedic Foot
and Ankle Society score, the American Academy of Orthopaedic Surgeons
score and a visual analogue score for pain were used to assess outcome. A total of 274 patients were available; the mean follow-up was
9.7 years (8 to 18). The extent of any calcification or synostosis
at the level of the distal interosseous membrane or syndesmosis
on the contemporary radiographs was defined as: no or minor calcifications
(group 1), severe calcification (group 2), or complete synostosis
(group 3). A total of 222 (81%) patients were in group 1, 37 (14%) in group
2 and 15 (5%) in group 3. There was no significant difference in
incidence between AO type 44-B and type 44-C fractures (p = 0.89).
Severe calcification or synostosis occurred in 21 patients (19%)
in whom a syndesmotic screw was used and in 31 (19%) in whom a syndesmotic screw
was not used.(p = 0.70). No significant differences were found between
the groups except for a greater reduction in mean dorsiflexion in
group 2 (p = 0.004). This is the largest study on distal tibiofibular synostosis,
and we found that a synostosis is a frequent complication of surgery
for a fracture of the ankle. Although it theoretically impairs the
range of movement of the ankle, it did not affect the outcome. Our findings suggest that synostosis of the distal tibiofibular
syndesmosis in general does not warrant treatment. Cite this article:
The incidence of periprosthetic fractures of
the ankle is increasing. However, little is known about the outcome
of treatment and their management remains controversial. The aim
of this study was to assess the impact of periprosthetic fractures
on the functional and radiological outcome of patients with a total
ankle arthroplasty (TAA). A total of 505 TAAs (488 patients) who underwent TAA were retrospectively
evaluated for periprosthetic ankle fracture: these were then classified
according to a recent classification which is orientated towards
treatment. The outcome was evaluated clinically using the American
Orthopedic Foot and Ankle Society (AOFAS) score and a visual analogue
scale for pain, and radiologically. A total of 21 patients with a periprosthetic fracture of the
ankle were identified. There were 13 women and eight men. The mean
age of the patients was 63 years (48 to 74). Thus, the incidence
of fracture was 4.17%. There were 11 intra-operative and ten post-operative fractures,
of which eight were stress fractures and two were traumatic. The
prosthesis was stable in all patients. Five stress fractures were
treated conservatively and the remaining three were treated operatively. A total of 17 patients (81%) were examined clinically and radiologically
at a mean follow-up of 53.5 months (12 to 112). The mean AOFAS score
at follow-up was 79.5 (21 to 100). The mean AOFAS score in those
with an intra-operative fracture was 87.6 (80 to 100) and for those
with a stress fracture, which were mainly because of varus malpositioning,
was 67.3 (21 to 93). Periprosthetic fractures of the ankle do not
necessarily adversely affect the clinical outcome, provided that
a treatment algorithm is implemented with the help of a new classification
system. Cite this article:
We compared the clinical and radiographic results
of total ankle replacement (TAR) performed in non-diabetic and diabetic
patients. We identified 173 patients who underwent unilateral TAR
between 2004 and 2011 with a minimum of two years’ follow-up. There
were 88 male (50.9%) and 85 female (49.1%) patients with a mean
age of 66 years ( The mean AOS and AOFAS scores were significantly better in the
non-diabetic group (p = 0.018 and p = 0.038, respectively). In all,
nine TARs (21%) in the diabetic group had clinical failure at a
mean follow-up of five years (24 to 109), which was significantly
higher than the rate of failure of 15 (11.6%) in the non-diabetic
group (p = 0.004). The uncontrolled diabetic subgroup had a significantly
poorer outcome than the non-diabetic group (p = 0.02), and a higher
rate of delayed wound healing. The incidence of early-onset osteolysis was higher in the diabetic
group than in the non-diabetic group (p = 0.02). These results suggest
that diabetes mellitus, especially with poor glycaemic control,
negatively affects the short- to mid-term outcome after TAR. Cite this article:
We describe the early results of a prospective study of 100 total ankle replacements (96 patients) at a single centre using the Mobility Total Ankle Replacement. At final review, six patients had died and five ankles (5%) had been revised, two by fusion and three by exchange of components. All remaining patients were reviewed at a minimum of three years. The mean follow-up was 43 months (4 to 63). The three-year survival was 97% (95% confidence interval (CI) 91 to 99). The four-year survival was 93.6% (95% CI 84.7 to 97.4). The portion of bony interface that was visible on plain radiograph was divided into 15 zones and a radiolucent line or osteolytic cavity was seen in one zone in 14 ankles. It was not seen in more than one zone. In five ankles it was >
10 mm in width. This study suggests that the early outcome of ankle replacement is comparable to that of other total joint replacements.