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Research

THUMB METACARPOPHALANGEAL JOINT ARTHRODESIS: IS THERE A ROLE FOR INTRA-OPERATIVE IMAGING?

West of Scotland Research Society (WOSORS) - Glasgow Meeting of Orthopaedic Research (GLAMOR)



Abstract

Intra-operative fluoroscopy in thumb metacarpophalangeal joint arthrodesis has been recommended as a means of achieving optimal alignment more consistently. This is not our current practice. A patient attending dissatisfied with an arthrodesis in excessive flexion performed outwith our unit highlighted the potential for problems, and we therefore elected to review our own outcomes.

An evaluation of the alignment achieved in thumb metacarpophalangeal joint arthrodeses, to determine if current outcomes satisfactory or if fluoroscopic assistance should be considered.

Radiological review of alignment of thumb metacarpophalangeal joint arthodeses carried out by two Consultant Surgeons with specialist interests in upper limb surgery in a District General hospital. Cases were predominantly identified retrospectively from sequential review of operating lists. The radiological images were, or had been taken, as part of routine follow-up and were not standardised. The alignment was also assessed independently by a junior doctor with no involvement in the patient's surgical treatment and no knowledge of the intended alignment. Recommended positions for arthrodesis have covered a range from 0 to 30 degrees, so for the purposes of analysis that range was considered acceptable.

14 cases had an average fusion position of 18 degrees flexion (range 6 to 30 degrees). 6 underwent concurrent ipsilaterel trapeziectomy.

The series achieved satisfactory alignment radiologically without the routine use of intra-operative fluoroscopy.


Correspondence should be sent to: Mr J.A. Fraser-Moodie; email: