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Orthopaedic Proceedings
Vol. 92-B, Issue SUPP_I | Pages 241 - 241
1 Mar 2010
Goldberg AJ Sharp RJ Cooke PH
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Introduction: Surgical treatments for ankle arthritis include arthrodesis and total ankle replacement (TAR). Whilst arthrodesis has reasonable midterm results, longer term data has identified concerns, such as progressive arthritis of adjacent joints. There are more than 10 TAR designs available in Europe alone, each with limited published outcomes. In order to understand current practice and perceptions in relation to ankle replacement, a questionnaire based survey was carried out by email and post to all Consultant members of BOFAS based in the UK (n=180).

Results: 123 completed questionnaires were returned (68%). Thirty Seven (30%) respondents said they were not currently carrying out joint replacement. There was wide variation amongst surgeons in the types of prosthesis used. A small number of surgeons were responsible for the majority of the volume of TAR surgery carried out in the UK. The median number of ankle replacements carried out per year, by surgeons who are performing ankle replacement was 8 (range 1–55) compared to 13 (range 3–55) for ankle arthrodesis. 97.5% of respondents supported the creation of a national joint register for ankle replacements.

Conclusion: This is the first report of the current status quo in the UK with regards the use of total ankle replacement. It is estimated that at least 1281 ankle replacements are carried out per year in the UK. 72% of surgeons that are performing ankle replacements in the UK carry out less than 8 ankle replacements per year. Single surgeon reported series with such small numbers is unlikely to yield meaningful data. An increase in the number of surgeons performing ankle replacements coupled with a rapid proliferation in the number of available implants might lead to early failure and poor outcomes and this would point to the necessity for a National Joint Register for ankle replacements.


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_II | Pages 365 - 365
1 May 2009
Tryfonidis M Jackson W Mansour R Ostlere S Teh J Cooke PH Sharp RJ
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Introduction: Acquired pes planus is caused by mechanical uncoupling of the bones of the tarsus due to failure of the osseoligamentous complex that maintains the medial longitudinal arch of the foot. The most common cause of acquired flat foot deformity in adults is posterior tibialis tendon dysfunction. A solitary previous case report has documented an alternative aetiology of acquired flat foot in adults due to isolated spring ligament rupture; in that case diagnosis was made intra-operatively.

Materials and Methods: We present 9 cases of acquired flat foot deformity that were caused by isolated spring ligament insufficiency, mainly presenting after an eversion injury of the ankle. We present the clinical sign of ability to single leg tiptoe, but with persistent forefoot abduction and heel valgus, that allows differentiation of this diagnosis from posterior tibialis tendon dysfunction. In addition we illustrate the radiological features of this condition which have not been previously described and allow confirmation of the diagnosis non-operatively.

Results: Six patients have been managed with orthotics and three underwent surgery; one patient who presented early had an isolated repair of the spring ligament complex and has done well. The remaining two patients required a calcaneal osteotomy and Flexor Digitorum Longus transfer as for a PTT reconstruction. In all these three patients the spring ligament was found to be completely ruptured during surgery.

Discussion: This type of injury may not be as rare as previously thought and demonstrates the importance of the spring ligament on its own in maintaining the medial longitudinal arch. Awareness of this condition could lead to earlier diagnosis and better prognosis with earlier treatment.

Conclusion: We propose that early diagnosis (with ultrasound confirmation) and management of this condition would offer a better prognosis and allow less interventional surgery.


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_II | Pages 366 - 367
1 May 2009
Dean BJF Sharp R Hinsley DE Cooke PH Sharp RJ
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Introduction: In June 2006, the post-operative plaster immobilisation protocol for patients undergoing foot and ankle surgery at our institution changed from multiple plaster changes to the immediate application of a definitive reusable split synthetic cast. This study aims to assess the savings following this change in practice.

Materials and Methods: A retrospective analysis of plaster room records from June 2005 to June 2007 was performed.

The original procedure involved application of a plaster backslab following surgery, change of cast on day 1 post operatively, suture removal and plaster change at two weeks post-operation and cast removal or bivalving six weeks post-operation, following outpatient review.

The new procedure utilised a reusable cast applied in theatre which allowed suture removal and wound inspection in the community and outpatient review at six weeks without plaster change.

Results: Two hundred and twenty-two patients from 2005–6 were managed with the plaster procedure at a cost of £344.98 per patient and a total cost of £76,586.56. While 203 patients from 2006–7 were managed with the new procedure at a cost of £147.10 per patient and a total cost of £29,861.30. The net saving to the hospital of this change in practice was £197.88 per patient and £40,169.64 in total. There were no referrals back to the hospital as a consequence of this change in practice.

Discussion: Plaster changes and hospital outpatient appointments add cost to surgical procedures. This simple change in the post-operative casting of foot and ankle patients resulted in less outpatient visits and plaster changes without compromising the standard of medical care.

Conclusions: In the current political and financial climate it is important that economic efficiency, at a local level. This study demonstrates how small changes in local practice can result in significant financial savings for hospitals.


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_II | Pages 361 - 362
1 May 2009
Rout R Tedd H Ostlere SJ McNally EG Teh JL Lavis G Cooke PH Sharp RJ
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Introduction: The first line treatment in our centre for Morton’s neuroma (MN), sufficient to warrant intervention, is a peri-neural Ultrasound guided injection of corticosteroid (USI).

The NHS will soon implement 18 week referral to treatment targets.

A prospective study was performed whereby from 2004–6, referral letters from General Practitioners suggesting a diagnosis specifically of Morton’s neuroma, resulted in randomised assignment to either direct referral for USI or to the specialist Foot and Ankle outpatient clinic.

Patients with less specific referral letters were evaluated in clinic and referred for USI as appropriate.

A comparison was made of the sensitivity and specificity of the referral pathways, financial implications and the time to treatment (TTT).

Results: 121 patients were referred for USI.

Of 57 patients for whom the GP had diagnosed a MN, 40 (70%) had the diagnosis confirmed on USI (other diagnoses were: 7 NAD, 3 ganglions, 2 bursae, 2 degenerative change, 1 glomus tumour, 1 angioleiomyoma, 1 SOL); this was comparable to the overall number referred to radiology with a suspected MN (69%).

In the directly referred group, the mean TTT was 115 days (95%CI = 89 – 141), compared to 241 days (95%CI = 223 – 259) for those patients who went via a Foot and Ankle clinic. P< 0.0001.

Conclusion: For patients with features highly suggestive of a Morton’s neuroma, direct referral from primary care for USI has a similar sensitivity and specificity to referral from a specialist hospital clinic and the TTT is significantly shorter.

The mean wait of this group is within the 18 week government target without any changes to our current radiology protocols. Using this direct referral protocol we saved 29 outpatient appointments; if followed for all eligible patients we would have saved 57 outpatient appointments.


Orthopaedic Proceedings
Vol. 85-B, Issue SUPP_II | Pages 116 - 116
1 Feb 2003
Aslam N Lavis G Willis N Porter D Cooke PH
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The SCARF osteotomy is a three dimentional osteotomy for hallux valgus. It combines a lateral release of the adductor hallucis with a lateral and plantar displacement of the first metatarsal. The osteotomy is ‘z’ shaped in the lateral view and displacement of the distal fragment is followed by internal fixation.

In this study we set out to determine whether the SCARF osteotomy was an effective method in the correction of moderate to severe hallux valgus deformity. A prospective radiographic study was performed on 22 cases of SCARF osteotomy with an average age of 52 years (range 25–78). Standardised weight bearing anterior-posterior radiographs were taken preoperatively and at six months post operatively.

The American Foot and Ankle Society guidelines were used for all measurements. Measurements were made using overlay acetate sheets to minimise inter and intra observer error.

These were compared to determine changes in the intermetatarsal angle (IMA), hallux valgus angle (HVA), distal metatarsal articular angle (DMAA) and joint congruency angle (JCA). Correction of sesamoid position and metatarsal length changes were also assessed.

The results showed a median reduction of IMA of 6 degrees, HVA of 16 degrees, DMAA of 6 degrees and an improvement in JCA of 11 degrees. Improvement of the lateral sesamoid displacement from beneath the first metatarsal head was seen postoperatively. Metatarsal length was assessed by comparing the ratio of the length of the first to second metatarsal pre and post operatively. No shortening was found. There was no incidence of avascular necrosis or non-union. This study indicates that the SCARF osteotomy produces effective radiological correction of hallux valgus where there is moderate to high degree of deformity. It also improves sesamoid displacement and avoids shortening of the first metatarsal.