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Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_II | Pages 364 - 364
1 May 2009
Chipperfield A Redfern DJ
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Introduction: In April 2007, NICE published guidance on reducing the risk of venous thromboembolism. Immobilization of a limb in plaster was identified as a risk factor for thromboembolism. NICE recommend that all orthopaedic patients with risk factors are offered low molecular weight heparin (LMWH) whilst an inpatient. There was no cost effective evidence to continue treatment as an outpatient in foot and ankle patients. Foot and ankle surgery often requires prolonged periods of immobilization postoperatively. This study aims to provide a snapshot of current practice amongst foot and ankle surgeons in the UK, highlighting any differences between current practice and NICE guidelines.

Materials and Methods: A random sample of the 267 members of the British Foot and Ankle Surgery Society listed in the 2007 BOA Handbook was obtained. In order to have a 90% confidence level, the sample size was calculated to be 71. The specialist teams identified were contacted by telephone and questioned on their use of thromboprophylaxis for elective patients in plaster. The results were collated and compared to NICE guidelines.

Results: 94% of foot and ankle surgeons prescribe LMWH to post operative elective inpatients in plaster. 65% of specialists continue thromboprophylaxis for out-patients. The duration and agent of thromboprophylaxis varied markedly. The commonest agents were LMWH and aspirin. The length of treatment ranged from ten days to the duration of plaster immobilization.

Discussion: The results highlight a trend amongst foot and ankle surgeons to exceed current NICE guidelines for thromboprophylaxis, continuing treatment for an extended outpatient period. Although there was shown to be no cost effective evidence to continue treatment, the practice continues.

Conclusion: The vast majority of UK foot and ankle surgeons fulfill the NICE recommendations on thromboprophylaxis. There is a clear need for a policy statement from BOFAS on the extended use of thromboprophylaxis for outpatients immobilized in plaster.


The Journal of Bone & Joint Surgery British Volume
Vol. 86-B, Issue 2 | Pages 279 - 281
1 Mar 2004
Redfern DJ Coleridge SD Bendall SP

We present a case of Mycobacterium avium-intracellulare (MAI) infection of the ankle joint in a patient with HIV infection. The patient presented with a painful, destructive arthropathy of the ankle. Initial microbiological studies were negative but infection with MAI was later identified from biopsies taken during hindfoot fusion. Antibiotic triple therapy was given and the patient remains pain-free without evidence of active infection. To our knowledge, this is the first case of MAI infection of the ankle reported in the literature. A high index of suspicion of (atypical) Mycobacterial infection should be maintained in patients with HIV infection presenting with an indolent but destructive arthropathy of the ankle joint.