Abstract
Osteoarthritis of the thumb carpal metacarpal joint is effectively managed by complete excision of the trapezium or excision of the distal half of the trapezium with maintenance of the space by insertion of interposition tendinous material from palmaris longus or flexor carpi radialis. The more recent modification of partial trapezium excision has improved pinch strength and maintenance of thumb length and so has enhanced the final results. Carpal metacarpal ligament reconstruction is demonstrated because it is occasionally necessary.
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