Impact of shoulder subluxation on peripheral nerve conduction and function of hemiplegic upper extremity in stroke patients: A retrospective, matched-pair study

Purpose: To investigate the impact of shoulder subluxation (SS) on peripheral nerve conduction and function hemiplegic upper extremity (HUE) in poststroke patients.Methods: Thirty post-stroke patients were selected (SS group: 15 patients, non-SS respectively). Evaluation limbs: compound muscle action potential (CMAP) amplitude latency suprascapular, axillary, musculocutaneous, radial, median, ulnar nerves; motor sensory velocity (SNAP) ulnar, radial nerves. The Brunnstrom stage scale was used to evaluate HUE function.Results: Compared with healthy side, CMAP SNAP amplitudes tested nerves both groups lower, axillary musculocutaneous SS group longer (P < 0.05). group, (except ulnar) decreased more 0.05), median lower 0.05).Conclusions: Stroke may lead extensive abnormal HUE, aggravate abnormality, which disturb recovery limb function.