Adequacy and long-term prognosis of endoscopic carpal tunnel release

Takahiko Hirooka, Hiroyuki Hashizume, Masuo Senda, Mitsuru Nagoshi, Hajime Inoue, Hiroaki Nagashima

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Forty-one hands of 37 patients with idiopathic carpal tunnel syndrome treated by endoscopic carpal tunnel release (ECTR) were followed up for more than one year after surgery. Surgical results were evaluated using Kelly's criteria, the Semmes-Weinstein test, the static and moving 2-point discrimination tests, tip-pinch strength, and motor and sensory nerve conduction studies. Clinical results, according to Kelly's criteria three months after surgery, were excellent or good in 36 hands, and fair or poor in five hands. No recovery was evident at six months and 12 months after surgery in fair and poor hands. Based on these findings, we conclude that a neurolysis of the median nerve and release of constriction of the thenar muscle branch should be performed using the conventional open technique for patients with poor results three months after ECTR if the patients are dissatisfied with ECTR results.

Original languageEnglish
Pages (from-to)39-44
Number of pages6
JournalActa medica Okayama
Issue number1
Publication statusPublished - Dec 1 1999


  • Carpal tunnel syndrome
  • Endoscopic carpal tunnel release
  • Idiopathic

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)


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