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RECURRENT DISLOCATION OF EXTENSOR TENDONS IN THE HAND

Dislocation of a tendon of extensor digitorum from its median position on the metacarpal head during flexion of the metacarpo-phalangeal joint is a rare occurrence, though from its exposed position it will not often pass unnoticed. Sir James Paget mentioned three cases in 1875 and Marsh a further four in 1896, since when its pathology and treatment have received occasional mention and discussion. Usually the report has been on the basis of a single personal case. The following cases are of interest in that the nature of the primary lesion is demonstrated, together with a satisfactory method of operative repair. Other methods of treatment and the probable etiology are briefly discussed.