Entrapment of the Posterior Interosseous Nerve

Unusual Compression Neuropathies of the Forearm, Part I: Radial Nerve

“…An evaluation of the literature reveals that no randomized controlled trials examine the precise role of surgical decompression versus conservative treatment in the management of patients with RTS. 56 Of the 6 higher-quality RTS studies cited by Huisstede et al, the efficacy of surgical decompression of the radial tunnel ranged from 67% 62 to 92% 48 when the criteria put forth by Roles and Maudsley 48 or Hagert et al 61 were used. Werner described an 81% success rate after 90 procedures 9 and Lister et al documented pain relief in 95% of their patients.…”

Work-Related Upper Limb Pain and Its Diagnosis: Contribution from the Neurological Examination

“…In cases of compression of the posterior interosseous nerve at the edge of the supinator muscle (radial tunnel syndrome) [20] and/or the median nerve at elbow level (pronator syndrome) [21], long-term follow-up studies have shown excellent results of surgery [18].…”

“…However, certain work-exposures have been previously implicated with upper limb nerve afflictions with specific locations. Werner [22] and Hagert et al [20] have reported on rotational load of the forearm causing radial tunnel syndrome rather than epicondylitis. Stål et al has described pronator syndrome in a high proportion of female milkers [23].…”

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“…Although most of the paralysis cases of the posterior interosseus nerve are thought to be caused by overexertion of the arm, thus resembling the hypothetical etiology of tennis elbow, the syndrome should be considered a specific entity (2,10). In his recent study, Werner (16) estimated the share of posterior interosseus nerve entrapment to be around 5 % among tennis elbow patients.…”