Clinical Results of Nontraumatic Anterior Interosscous Nerve Paralysis and Posterior Interosseous Nerve Paralvsis

DOI 4 Citations 12 References
  • Nobuto Shinri
    Department of Orthopadic Surgery, School of Medicine, Fukuoka University, Fukuoka, Japan
  • Soejima Osamu
    Department of Orthopadic Surgery, School of Medicine, Fukuoka University, Fukuoka, Japan
  • Koga Kei
    Department of Orthopadic Surgery, School of Medicine, Fukuoka University, Fukuoka, Japan
  • Naito Masatoshi
    Department of Orthopadic Surgery, School of Medicine, Fukuoka University, Fukuoka, Japan

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  • 特発性前骨間神経麻痺・後骨間神経麻痺の手術成績

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Five patients with nontraumatic paralysis of the anterior interosseous nerve (AINP) and two patients with nontraumatic paralysis of the posterior interosseous nerve (PINP) treated conservatively for more than six months and showing less than manual muscle test (MMT) 2 were treated by interfascicular neurolysis.<BR>Multiple constriction was seen in one case, and other cases showed edema or ischemic changes.<BR>Four of the seven surgical cases (2 AINP, 2 PINP) recovered with MMT increased to more than [4] (good cases) from less than [2] at 12 months (average: 6.3 months) after surgery. Good cases showed muscle recovery with MMT more than [3] within two weeks. AINP with only FDP type and PINP with thumb and finger type showed useful recovery. From the results of these investigations, conservative treatment should be done at least six months after the onset of AINP or PINP and interfascicular neurolysis should be selected for cases of no tendency toward improvement within six months.

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