Objectives: Neurologic TOS with amyotrophy is exceptional and the diagnosis is usually delayed compromising the outcome after treatment. The aims of this study were to define clinical features, anatomical causes, surgical results and prognostic factors of this disease.
Methods: All of the TOS with objective neurologic deficit treated in our unit between 1989 and 2011 were assessed retrospectively. Thirty cases were identified in 28 patients (two bilateral cases). The mean-age was 44 years (16 to 70).
Results: Muscular atrophy always predominated in the lateral thenar muscles. Seventeen also had sensory symptoms. Twenty-two patients (24 cases) were surgically treated. Twenty-three cases could be assessed with a mean follow-up of 39 months. Recovery was complete in four cases (17%), marked in nine cases (39%) and minimal in ten cases (44%).
Conclusions: Neurological TOS with objective manifestations have to be distinguished from other types of neurological TOS. Muscular atrophy in the hand appears insidiously and the pain, which is inconstant, stays always in the background. Duration of symptoms before surgical treatment is the main prognostic factor.
Copyright © 2012 Elsevier Masson SAS. All rights reserved.