Anterior interosseous nerve and posterior interosseous nerve involvement in neuralgic amyotrophy.
OBJECTIVE
The aim of this study was to gain a better understanding of anterior interosseous nerve and posterior interosseous nerve involvement in neuralgic amyotrophy.


METHODS
In a retrospective chart review, 51 cases (49 patients) with anterior and posterior interosseous nerve syndrome were investigated in terms of their symptoms, course of disease, and prognosis.


RESULTS
Patients first presented with pain in 52.9% of cases. The location of the pain was distal to the shoulder in most cases (85.1%). Sensory involvement was found in 27.5% of patients, and patients with pain before paresis had fewer sensory symptoms (p=0.006). Neurolysis significantly improved Hand20 scores, but conservative treatment did not (p=0.020 vs. 0.204).


CONCLUSIONS
Patients with anterior interosseous nerve and posterior interosseous nerve affection in neuralgic amyotrophy had less pain. Neurolysis can be superior to conservative treatment in the patients with focal constrictions and no spontaneous recovery.
Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan. Electronic address: akane-ymnngy@umin.ac.jp.
Mao
M
Akane
Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan.
Katsuyuki
K
Iwatsuki
Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan.
Masahiro
M
Tatebe
Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan.
Takanobu
T
Nishizuka
Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan.
Shigeru
S
Kurimoto
Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan.
Michiro
M
Yamamoto
Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8560, Japan.
Hitoshi
H
Hirata
D000293:Adolescent; D000328:Adult; D000368:Aged; D020968:Brachial Plexus Neuritis / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000628:therapy; D005260:Female; D006801:Humans; D008297:Male; D008475:Median Nerve / Q000000981:diagnostic imaging / Q000503:physiopathology*; D008875:Middle Aged; D009407:Nerve Block; D009437:Neuralgia / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000628:therapy; D017063:Outcome Assessment, Health Care; D011826:Radial Nerve / Q000000981:diagnostic imaging / Q000503:physiopathology*; D012189:Retrospective Studies; D055815:Young Adult
Anterior interosseous nerve; Neuralgic amyotrophy; Neurolysis; Peripheral nerve palsy; Posterior interosseous nerve; Radial nerve