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Bone & Joint 360
Vol. 13, Issue 4 | Pages 19 - 23
2 Aug 2024

The August 2024 Foot & Ankle Roundup360 looks at: ESWT versus surgery for fifth metatarsal stress fractures; Minimally invasive surgery versus open fusion for hallux rigidus; Diabetes and infection risk in total ankle arthroplasty; Is proximal medial gastrocnemius recession useful for managing chronic plantar fasciitis?; Fuse the great toe in the young!; Conservative surgery for diabetic foot osteomyelitis; Mental health and outcome following foot and ankle surgery.


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_7 | Pages 11 - 11
8 May 2024
Daniels T
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Introduction/Purpose. A randomized clinical trial of first MTP joint hemiarthroplasty with a synthetic cartilage implant demonstrated equivalent pain, function and safety outcomes to first MTP joint arthrodesis at 2 years. Recognizing that many hemiarthroplasty and total toe implants have initially good results that deteriorate over time, the purpose of this study was to prospectively assess the safety and efficacy outcomes for the synthetic cartilage implant population and to determine if the excellent outcomes were maintained at >5 years. Methods. One hundred nineteen patients were evaluated at 5+ years; 23 could not be reached for follow-up, but implant status was available for 7 of these subjects. Patients completed a pain visual analogue scale (VAS) and Foot and Ankle Ability Measure (FAAM) Sports and Activities of Daily Living (ADL) scores, preoperatively and at 2, 6, 12, 26, 52, 104 and 260 weeks postoperatively. Minimal clinically important differences are: ≥30% difference for pain VAS, 9 points for FAAM Sports, and 8 points for FAAM ADL. Great toe active dorsiflexion, weight-bearing radiographs, secondary procedures, and safety parameters were evaluated. Results. Of 119 patients available at mean 5.8 years follow-up (SD ±0.7; range: 4.4–8.0), 9 underwent implant removal and conversion to fusion in years 2–5, leaving 106 patients. The implant survival rate was 92.4% at 5.8 years. Pain and function outcomes at 5.8 years were similar to those at 2 years. VAS Pain, FAAM Sports, ADL Scores were maintained or improved at 5.8 years. No evidence of avascular necrosis, device migration or fragmentation was observed. There were no unanticipated safety events through 5.8 years. Ninety-three (93%) percent would have the procedure again. Conclusion. The synthetic cartilage hemiarthroplasty implant continues to demonstrate safety and efficacy for the treatment of advanced first MTP joint osteoarthritis with evidence of therapeutic effect and acceptable safety profile at 5.8 years


Bone & Joint 360
Vol. 9, Issue 6 | Pages 22 - 27
1 Dec 2020


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_21 | Pages 17 - 17
1 Dec 2017
Davies H Blundell C Daniels T Glazebrook M Baumhauer J Younger A Le I Pedersen E
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Introduction. A randomized clinical trial of first metatarsophalangeal (MTP) joint hemiarthroplasty with a synthetic cartilage implant demonstrated equivalent pain, function and safety outcomes to first MTP joint arthrodesis at 2 years. The implant cohort continues to be followed under an extension of the original study and we report on prospectively determined 5+ year outcomes for subjects assessed to date. Methods. Patients treated with hemiarthroplasty implant as part of the previously mentioned trial are eligible for enrollment in the extended study (n=135). At the time of this report, 57 patients had reached the 5+ years postoperative time point, of which 5 were lost to follow-up. The remaining 52 patients with mean age of 58.5 (range, 38.0–0.0) underwent physical examination, radiographic evaluation, assessment of implant survivorship and collection of patient completed VAS pain, and Foot and Ankle Ability Measure (FAAM) sports subscale and activities of daily living (ADL) subscale scores. Mean follow-up is 5.8 (range, 4.8–8.4) years. Results. Patient reported pain and function outcome measures showed clinically and statistically meaningful improvements over baseline at 5.8 years. Mean VAS pain scores decreased 57.9 points (86% pain reduction). The mean FAAM Sports and ADL subscale scores increased from baseline 47.9 points (126%) and 32.7 points (55%) respectively. Patients maintained first MTP joint motion with mean active peak MTP dorsiflexion of 25.9° (range, 0–0°) which was a 3° improvement from baseline. Implant survivorship at 5.8 years was 92%; four were converted to fusion because of persistent pain at mean time 42 months post-operation (range, 26–26 months). These results are equivalent to the outcomes reported at 2 years follow-up. 1. Conclusion. The synthetic cartilage hemiarthroplasty implant continues to demonstrate safety and efficacy for the treatment of advanced first MTP joint osteoarthritis with mid-term evidence of a therapeutic effect and an acceptable safety profile at 5.8 years


The Bone & Joint Journal
Vol. 98-B, Issue 5 | Pages 641 - 646
1 May 2016
Ballas R Edouard P Philippot R Farizon F Delangle F Peyrot N

Aims. The purpose of this study was to analyse the biomechanics of walking, through the ground reaction forces (GRF) measured, after first metatarsal osteotomy or metatarsophalangeal joint (MTP) arthrodesis. Patients and Methods. A total of 19 patients underwent a Scarf osteotomy (50.3 years, standard deviation (. sd. ) 12.3) and 18 underwent an arthrodesis (56.2 years,. sd. 6.5). Clinical and radiographical data as well as the American Orthopaedic Foot and Ankle Society (AOFAS) scores were determined. GRF were measured using an instrumented treadmill. A two-way model of analysis of variance (ANOVA) was used to determine the effects of surgery on biomechanical parameters of walking, particularly propulsion. Results. Epidemiological, radiographical and clinical data were comparable in the two groups and better restoration of propulsive function was found after osteotomy as shown by ANOVA (two way: surgery × foot) with a surgery effect on vertical forces (p < 0.01) and a foot effect on anteroposterior impulse (p = 0.01). Conclusion. Patients who underwent Scarf osteotomy had a gait pattern similar to that of their non-operated foot, whereas those who underwent arthrodesis of the first (metatarsophalangeal) MTP joint did not totally recover the propulsive forces of the forefoot. Take home message: The main findings of this study were that after surgical correction for hallux valgus, patients who underwent scarf osteotomy had a gait pattern similar to that of their non-operated foot in terms of forefoot propulsive forces (Fz3, Iy2), whereas those who underwent arthrodesis of the first MTP joint had not. Cite this article: Bone Joint J 2016;98-B:641–6


Bone & Joint 360
Vol. 5, Issue 2 | Pages 16 - 18
1 Apr 2016


The Bone & Joint Journal
Vol. 98-B, Issue 3 | Pages 365 - 373
1 Mar 2016
Lucas y Hernandez J Golanó† P Roshan-Zamir S Darcel V Chauveaux D Laffenêtre O

Aims

The aim of this study was to report a single surgeon series of consecutive patients with moderate hallux valgus managed with a percutaneous extra-articular reverse-L chevron (PERC) osteotomy.

Patients and Methods

A total of 38 patients underwent 45 procedures. There were 35 women and three men. The mean age of the patients was 48 years (17 to 69). An additional percutaneous Akin osteotomy was performed in 37 feet and percutaneous lateral capsular release was performed in 22 feet. Clinical and radiological assessments included the type of forefoot, range of movement, the American Orthopedic Foot and Ankle (AOFAS) score, a subjective rating and radiological parameters.

The mean follow-up was 59.1 months (45.9 to 75.2). No patients were lost to follow-up.


The Bone & Joint Journal
Vol. 95-B, Issue 6 | Pages 803 - 808
1 Jun 2013
Choi GW Choi WJ Yoon HS Lee JW

We reviewed 91 patients (103 feet) who underwent a Ludloff osteotomy combined with additional procedures. According to the combined procedures performed, patients were divided into Group I (31 feet; first web space release), Group II (35 feet; Akin osteotomy and trans-articular release), or Group III (37 feet; Akin osteotomy, supplementary axial Kirschner (K-) wire fixation, and trans-articular release). Each group was then further subdivided into severe and moderate deformities.

The mean hallux valgus angle correction of Group II was significantly greater than that of Group I (p = 0.001). The mean intermetatarsal angle correction of Group III was significantly greater than that of Group II (p < 0.001). In severe deformities, post-operative incongruity of the first metatarsophalangeal joint was least common in Group I (p = 0.026). Akin osteotomy significantly increased correction of the hallux valgus angle, while a supplementary K-wire significantly reduced the later loss of intermetatarsal angle correction. First web space release can be recommended for severe deformity. Additionally, K-wire fixation (odds ratio (OR) 5.05 (95% confidence interval (CI) 1.21 to 24.39); p = 0.032) and the pre-operative hallux valgus angle (OR 2.20 (95% CI 1.11 to 4.73); p = 0.001) were shown to be factors affecting recurrence of hallux valgus after Ludloff osteotomy.

Cite this article: Bone Joint J 2013;95-B:803–8.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_21 | Pages 29 - 29
1 Apr 2013
Rose B Bowman N Edwards H Skyrme A
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Introduction. Hallux valgus surgical correction has a variable but significant risk of recurrence. Symptoms result from an iatrogenic first brachymetatarsia following the index surgical procedure. First metatarsal shortening has been shown to correlate with the onset of transfer metatarsalgia. We describe the use of the scarf osteotomy to both correct the recurrent deformity and lengthen the shortened first metatarsal. Methods. 36 lengthening scarf osteotomies were undertaken in 31 patients. Clinical (AOFAS and SF12 scores) and radiographic measures (IMA, HVA) were taken pre- and post-operatively. The maximum theoretical lengthening was 10mm, to prevent first MTP joint stiffness post-operatively. The actual lengthening was determined and measured intra-operatively. Results. There were 28 female and three male patients, with mean age at presentation 53.4 years. The mean follow-up was 3.9 years. Four cases were lost to follow-up. The mean first metatarsal lengthening achieved was 4.9mm (range 1–8mm). All of the osteotomies united without complication. The mean IMA reduction was 4.0° (p<0.001) and HVA 13.0° (p<0.001). The mean AOFAS score increase was 33.8 (p<0.001). There was no correlation between change in IMA and AOFAS score (r=−0.13) or between improvement in HVA and AOFAS score (r=−0.02). There was a positive trend but no correlation (r=0.28) between amount of metatarsal lengthening and change in AOFAS score. The inter- and intra-observer correlation was excellent. The SF12 physical sub-domains improved more than the mental sub-domains. Conclusion. We describe the largest series of lengthening scarf osteotomies for recurrent hallux valgus and symptomatic iatrogenic first brachymetatarsia. The significant improvement in both clinical and radiographical measures suggests the procedure is successful, with a low complication rate. Lengthening did not reduce the MTPJ range of movement. We hypothesise that restoring both the length and alignment enables greater weight-bearing under the first metatarsal head, reducing biomechanical transfer metatarsalgia


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_21 | Pages 20 - 20
1 Apr 2013
Jamal B Pillai A Fogg Q Kumar S
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Introduction. The anatomy of the first metatarsophalangeal (MTP) joint and, in particular, the metatarsosesamoid articulation remains poorly understood. The movements of the sesamoids in relation to the metatarsal plays a key role in the function of the first MTP joint. Although the disorders affecting the sesamoids are described well, the movements of the metatarsosesamoid joints and the pathomechanics of these joints have not been described. We have performed a cadaver study detailing and quantifying the three dimensional movements occurring at these joints. Methods. Fresh frozen cadaveric specimens without evidence of forefoot deformity were dissected to assess the articulating surfaces throughout a normal range of motion. The dissections were digitally reconstructed in positions ranging from 10 degrees of dorsiflexion to 60 degrees of plantarflexion using a MicroScribe, enabling quantitative analyses in a virtual 3D environment. Results. The sesamoids demonstrated excursion both in the sagittal and coronal plane. The tibial sesamoid had a mean saggital excursion of 14.2 mm; the mean excursion of the fibular sesamoid was 8.7 mm. The mean coronal excursion of the tibial sesamoid was 2.8 mm while that of the fibular sesamoid was 3.2 mm. We also describe the mean saggital and coronal excursion of the sesamoids during smaller, incremental motions of the MTP joint. Conclusion. There appears to be differential tracking of the hallucal sesamoids. The tibial sesamoid has comparatively increased longitudinal excursion whilst the fibular sesamoid has comparatively greater lateral excursion. Clinical relevance. The greater excursion of the tibial sesamoid could explain the higher incidence of pathology in this bone. The differential excursion of the sesamoids is also a factor that should be considered in the design and mechanics of an effective hallux MTP joint arthroplasty


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_21 | Pages 32 - 32
1 Apr 2013
Al-Maiyah M Rice P Schneider T
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Introduction. Hallux Rigidus affects 2–10% of population, usually treated with cheilectomy or arthrodesis, however, for the subclass of patients who refuse to undergo fusion, Arthroplasty is an alternative solution, it maintain some degree of motion and provide pain relief. Toefit; is one of the prostheses being used. It is a total joint replacement with polyethylene insert. The aim of this study is to find clinical and radiological outcomes of Toefit arthroplasty. Method. A prospective study. Ethical committee approval was obtained. Patient who have received Toefit Arthroplasty with at least 12 months follow-up and were willing to participate in the study were included. Patients were reviewed by independent surgeon. Questionnaires were completed followed by clinical examination. This followed by radiographic assessment. Patients, who were willing to take part in the study but could not attend a clinical review, were invited to participate in telephone questionnaire. Pre and postoperative AOFAS scores were compared, patients' satisfaction and clinical and radiological outcome were assessed using descriptive statistics, t-test and survivalship analysis were done. Results. 180 patients had Toefit (September 2004–June 2011). 160 patients participated in the study (170 prostheses), 87% were females. Age range (38–89) year. AOFAS improved significantly from 38 to 83, with average arc of movement of 37 degrees. Patient satisfaction was high, VAS score1. Failure rate of 4.9%, there was high rate of revision of 29% due to sesamoid pain or stiffness in the initial group of patients, decreased to 8% in the second group. Radiological review showed asymptomatic aseptic loosening of 20%, mainly of the proximal phalanx components. Conclusion. First MTP joint replacement can provide pain relief and maintain good range of movement. However, this study highlighted high rate of revision and aseptic loosening. Long term review is required


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_1 | Pages 15 - 15
1 Jan 2013
Jamal B Pillai A Kumar S Fogg Q
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Introduction. The anatomy of the first metatarsophalangeal (MTP) joint and, in particular, the metatarsosesamoid articulation remains poorly understood. The movements of the sesamoids in relation to the metatarsal plays a key role in the function of the first MTP joint. Although the disorders affecting the sesamoids are described well, the movements of the metatarsosesamoid joints and the pathomechanics of these joints have not been described. We have performed a cadaver study detailing and quantifying the three dimensional movements occurring at these joints. Methods. Fresh frozen cadaveric specimens without evidence of forefoot deformity were dissected to assess the articulating surfaces throughout a normal range of motion. The dissections were digitally reconstructed in positions ranging from 10 degrees of dorsiflexion to 60 degrees of plantarflexion using a Micro Scribe, enabling quantitative analyses in a virtual 3D environment. Results. The sesamoids demonstrated excursion both in the sagittal and coronal plane. The tibial sesamoid had a mean saggital excursion of 14.2 mm; the mean excursion of the fibular sesamoid was 8.7 mm. The mean coronal excursion of the tibial sesamoid was 2.8 mm while that of the fibular sesamoid was 3.2 mm. We also describe the mean saggital and coronal excursion of the sesamoids during smaller, incremental motions of the MTP joint. Conclusion. There appears to be differential tracking of the hallucal sesamoids. The tibial sesamoid has comparatively increased longitudinal excursion whilst the fibular sesamoid has comparatively greater lateral excursion. Clinical relevance. The greater excursion of the tibial sesamoid could explain the higher incidence of pathology in this bone. The differential excursion of the sesamoids is also a factor that should be considered in the design and mechanics of an effective hallux MTP joint arthroplasty


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XLIII | Pages 45 - 45
1 Sep 2012
Moonot P Rajagopalan S Brown J Sangar B Taylor H
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It is recognised that as the severity of hallux valgus (HV) worsens, so do the clinical and radiological signs of arthritis in the first metatarsophalangeal joint. However, few studies specifically document the degenerate changes. The purpose of this study is to determine if intraoperative mapping of articular erosive lesions of the first MTP joint can be correlated to clinical and/or radiographic parameters used during the preoperative assessment of the HV deformity. Materials & Methods. We prospectively analysed 50 patients who underwent surgery between Jan 2009 & Jan 2010. Patients with a known history of previous first metatarsophalangeal joint surgical intervention, trauma, or systemic arthritis were excluded from analysis. Preoperative demographics and AOFAS scores were recorded. Radiographic measurements were obtained from weight bearing radiographs. Intraoperative evaluation of the first metatarsal head, base of the proximal phalanx, and sesamoid articular cartilage erosion was performed. Cartilage wear was documented using International Cartilage Research Society grading. Results. three patients did not have scoring or cartilage wear documentation carried out and were excluded. The mean age was 56 years. The mean hallux valgus angle was 31 degrees. The mean IMA was 15 degrees. The mean AOFAS score was 62. Patients with no inferomedial (IM) and inferolateral (IL) wear had significantly better AOFAS score than patients who had IM & IL wear (p < 0.05). Patients who had IM & IL wear had a significantly higher HVA (p < 0.05). There was a significant positive correlation between hallux valgus angle and AOFAS score. We also found correlation between sesamoid wear and AOFAS score and HV angle. Conclusion. we conclude that preoperative clinical and radiographic measurements can be used to predict the incidence and location of articular erosions in the 1st MTPJ and are helpful in the preoperative assessment of the HV deformity


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXIX | Pages 67 - 67
1 Sep 2012
Marsland D Little N Dray A Solan M
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The saphenous nerve is classically described as innervating skin of the medial foot extending to the first MTP joint and thus is at risk in surgery to the medial ankle and forefoot. However, it has previously been demonstrated by the senior author that the dorsomedial branch of the superficial peroneal nerve consistently supplies the dorsomedial forefoot, leading to debate as to whether the saphenous nerve should routinely be included in ankle blocks for forefoot surgery. We undertook a cadaveric study to assess the presence and variability of the saphenous nerve. 29 feet were dissected from a level 10 cm above the medial malleolus, and distally to the termination of the saphenous nerve. In 24 specimens (83%), a saphenous nerve was present at the ankle joint. In 5 specimens the nerve terminated at the level of the ankle joint, and in 19 specimens the nerve extended to supply the skin distal to the ankle. At the ankle, the mean distance of the nerve from the tibialis anterior tendon and saphenous vein was 14mm and 3mm respectively. The mean distance reached in the foot was 5.1cm. 28% of specimens had a saphenous nerve that reached the first metatarsal and no specimens had a nerve that reached the great toe. The current study shows that the course of the saphenous nerve is highly variable, and when present usually terminates within 5cm of the ankle. The saphenous nerve is at risk in anteromedial arthroscopy portal placement, and should be included in local anaesthetic ankle blocks in forefoot surgery, as a significant proportion of nerves supply the medial forefoot


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XLIII | Pages 28 - 28
1 Sep 2012
Marsland D Dray A Little N Solan M
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The saphenous nerve is classically described as innervating skin of the medial foot to the first MTP joint and thus is at risk in surgery to the medial ankle and foot. However, it has previously been demonstrated that the dorsomedial branch of the superficial peroneal nerve consistently supplies the dorsomedial forefoot, and therefore previous descriptions of the saphenous nerve maybe erroneous. We undertook a cadaveric study to assess the presence and variability of this nerve. 21 cadaveric feet were dissected from a level 5 cm above the medial malleolus, and distally to the termination of the saphenous nerve. In 16 specimens (76%), a saphenous nerve was present, of which 14 were anterior to the saphenous vein. Two of 16 nerves terminated above the medial malleolus. Therefore, only 14 of 21 specimens (66%) had a saphenous nerve present at the level of the medial malleolus. In seven of these 14 specimens (50%), the nerve terminally branched before the level of the tip of the malleolus. The mean distance reached in the foot was 46mm. Only two nerves reached the forefoot, at 97mm and 110 mm from the ankle joint respectively. At the ankle, the mean distance of the nerve from the tibialis anterior tendon was 9mm, and the saphenous vein 1.2mm. Discussion. Our study shows that the course of the saphenous nerve is highly variable, and when present usually terminates within 40mm of the ankle. Only 10% reach the first MTP joint. These findings are inconsistent with standard surgical text descriptions. The saphenous nerve is at risk in distal tibial screw placement and arthroscopy portal placement, and should be included in local anaesthetic ankle blocks in forefoot surgery, as a small proportion of nerves supply sensation to the medial forefoot


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXVIII | Pages 16 - 16
1 Jun 2012
Russell D Pillai A Anderson K Kumar C
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Regional anaesthetic for foot surgery has been discussed as a method of post operative analgesia. Ankle block as the sole anaesthetic for foot surgery has not been extensively reviewed in the literature. We aimed to describe our experience of forefoot surgery under ankle block. Sixty-six consecutive forefoot procedures (59 patients) were carried out under ankle block. Patients were contacted post operatively and completed a standardised questionnaire including an incremental pain assessment ranging from 0-10 (0 no pain, 10 severe pain). Forty nine female and 10 male patients (age range 20-85y) were included. Procedures included 33 first metatarsal osteotomies, 15 cheilectomies, 3 first MTP joint replacements, 5 fusions, 4 excision of neuroma and 6 other procedures. 22 patients (33% of cases) reported discomfort during the block procedure (average pain score 1.5). 6 patients reported pain during their operation(s), average score 0.26. Average pain scores at 6, 12, 24 and 48 hours following surgery were 2.0, 3.2, 2.7 and 2.1 respectively. All patients were discharged home and walking on the same day. There were no readmissions. Each patient confirmed they would have surgery under regional block rather than general anaesthesia and would recommend this technique to family and friends. There are many advantages in being able to perform these relatively small procedures under regional anaesthesia. The anaesthesia obtained permits the majority of forefoot procedures and provides lasting post-operative analgesia. Combined with intra-operative sedation, use of ankle tourniquet and same day discharge; it has very high patient acceptance and satisfaction


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XVII | Pages 16 - 16
1 May 2012
Day M Cull S Morris A Roy S
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Introduction. Surgical treatment options for osteoarthritis of the first MTPJ include fusion, excision arthroplasty, interposition arthroplasty and replacement arthroplasty. . 1. Arthroplasty of the first MTPJ is not a treatment modality that is, as yet, widely accepted. . 2,3. although early results are promising. The Toefit-plus (tm) first MTP joint arthroplasty is an uncemented modular hemi or total joint replacement. The aim of this study was to look at the short to medium term outcome of the Toefit-plus(tm) system, performed by a single surgeon in a district general hospital. Methods. This was a retrospective study. Information was obtained from a combination of theatre logs and the operating surgeon's records. Any patient who had undergone Toefit -plus(tm) first MTP joint replacement was included. The demographic information was collated and the patients were scored using the AOFAS-IP scoring system and a VAS for pain. Results. 16 patient were identified with a total of 20 Toefit-plus(tm) arthroplasties. The vast majority of the patients were female 15/16 (94%) and the average age of the patients was 57.5 years (33-63 years). The average time at follow up was 16.55 months (2-45). No revision procedures had been performed. Conclusions. In our small study of a mainly female population the Toefit-Plus(tm) first MTP joint replacement results in a good functional outcome in the short term. Ongoing assessment will be required to investigate whether this benefit is maintained in the long term


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXIII | Pages 20 - 20
1 May 2012
Schneider T
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The first MTP Joint (MTPJ) is critical in normal gait. MTPJ replacements treat the articular surface as a hemisphere, as it appears radiographically. In reality the articular surface has two grooves to accommodate sesamoids and facilitate a better range of motion. We compare a standard hemispherical and a modified grooved implant. Six cadaver feet were implanted with Toefit 1st MTPJ replacements and sequentially four different metatarsal head implants. Two of the metatarsal heads had grooves. The intact joints were used as a baseline for comparison, with their measurements taken before implantation. Each construct had a standard dorsiflexion force applied (50N). Flexion angle was measured on lateral radiographs. Contact pressure and area were measured with a pressure transducer (Tekscan I-Scan 6900 electronic pressure sensor). The anatomical (grooved) implants showed higher flexion angles and lower contact pressures in each case although there were too few trials to reach statistical significance. Results suggest a tendency towards better flexion and contact pressure characteristics in a more anatomical device. This may lead to better clinical outcomes for 1st MTPJ replacements


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXII | Pages 36 - 36
1 May 2012
Hasselman C
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Introduction. The literature remains controversial on treatment of advanced stages of first metatarsophalangeal (MTP) arthritis and frequently favors arthrodesis. However, complications and suboptimal outcomes in active patients still remain with fusion of the first MTP joint. This study reports results of patients who underwent metallic resurfacing of the metatarsal side of the MTP joint. Materials and Methods. Twenty seven patients (31 implants) with stage II or III hallux rigidus underwent resurfacing with a fourth generation (screw fixation) contoured MTP implant and were willing to participate in a follow up study comparing pre- and postoperative radiographs, range of motion, AOFAS and SF-36 scores. The average age of these patients was 51 years (range 35-74) and the average follow up was 54 months (range 45-66). Results. The postoperative assessment demonstrated statistically significant improvements in range of motion, AOFAS, and SF-36 scores (P<0.05) when compared to baseline. The mean preoperative AOFAS scores improved from 51.5(range 35-74) to 94.1 (range 82-100). The mean preoperative active range of motion improved from 19.7 degrees (range 5-50) to 47.9 degrees (range 25-75). The mean preoperative passive range of motion improved from 28.0 degrees (range 10-60) to 66.3 degrees (range 40-90). The mean SF-36 score improved from 71.2 (range 60.6-80.0) to 88.2 (range 69.6-99.1), physical health sub scores improved from 66.8 (range 40-87) to 90.1 (range 70-98). The average time for return to work was 7 days (range 3-20). There was one implant revision due to phalangeal disease progression. All other patients were satisfied and willing to have the procedure performed again. Conclusion. Current 4 and 5 year results are very promising. Preservation of joint motion, alleviation of pain and functional improvement data are very encouraging. Because minimal joint resection is performed, conversion to arthrodesis or other salvage procedures is relatively simple if further intervention is necessary


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXII | Pages 34 - 34
1 May 2012
Russell D Pillai A Anderson K Kumar C
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Regional anaesthetic for foot surgery has been discussed as a method of post operative analgesia. Ankle block as the sole anaesthetic for foot surgery has not been extensively reviewed in the literature. Aim. To describe our experience of forefoot surgery under ankle block. Methods. 71 consecutive forefoot procedures (65 patients) were carried out under ankle block. A mixture of 10ml 2% Lidocaine with 10ml 0.5 % Bupivacine was administered to the superficial peroneal, deep peroneal, sural and saphenous nerves. Ankle tourniquet was employed in all procedures. Patients were contacted post operatively and completed a standardised questionnaire including an incremented pain assessment ranging from 0-10 (0 no pain, 10 severe pain). Results. 61 female and 4 male patients were contacted (age range 33-67y). Procedures included 48 first metatarsal osteotomies, 15 cheilectomies, 2 first MTP joint replacements, and 6 fusions. 17 patients (26 %) reported some discomfort during the block procedure (average pain score 1.2). No patients reported any pain during their operation(s). 14 patients (22%) required supplementation of the block. Average pain score at 6, 12, 24 and 48 hours following surgery were 0.66, 2.9, 2.4 and 1.3 respectively. All patients were discharged home and walking on the same day. None complained of nausea or required parentral analgesia. There were no readmissions. Each patient confirmed they would have surgery under regional block rather than general anaesthesia and would recommend this technique to family and friends. Discussion. There are many advantages in being able to perform these small procedures under regional anaesthesia. Our initial observational study suggests forefoot surgery under ankle block alone may be safe and effective. Anaesthesia obtained permits the majority of forefoot procedures and provides lasting post-operative analgesia. Combined with intra-operative sedation, use of ankle tourniquet and same day discharge it has very high patient acceptance and satisfaction