Palmaris brevis turnover flap as an adjunct to internal neurolysis of the chronically scarred median nerve in recurrent carpal tunnel syndrome

Elliott H. Rose, Michael S. Norris, Thomas A. Kowalski, Armand Lucas, Earl J. Flegler

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97 Scopus citations

Abstract

Thirteen hands in 11 patients with previous carpal tunnel releases were treated by microscopic internal neurolysis and palmaris brevis “turnover” flaps. All patients in the series had positive eiectrodiagnostic testing, dysesthetic wrist pain, and numbness in the median nerve distribution before operation. Average age was 41.9 years (range, 27 to 62 years). Ten were male and 3 were female. Range of follow-up after the procedure was from 1 to 11/2 years. All hands with abnormal preoperative two-point discriminations or Semmes-Weinstein measurements showed numerical improvement in their sensory parameters. Thenar strength and bulk improved at least one grade in all six cases of thenar atrophy. Mean grip strength was 15.2% greater than before operation. Key pinch increased 5.5% and pulp pinch 31.9%. Subjective assessment of improvement ranged from 25% to 100%. All patients returned to their former jobs or to vocational retraining except the oldest patient who is semiretired.

Original languageEnglish
Pages (from-to)191-201
Number of pages11
JournalJournal of Hand Surgery
Volume16
Issue number2
DOIs
StatePublished - 1991

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