Effectiveness of manual therapy to the Cervical Spine on clinical outcomes and electrodiagnostic tests in people with carpal tunnel syndrome: A randomized controlled trial

Abstract

Objective: To determine if cervical spine manual therapy (CMT) plus conventional physical therapy (PT) optimizes clinical objective and self-reported outcomes, compared to PT alone, in people with carpal tunnel syndrome (CTS).

Method: Forty-eight patients with the diagnosis of CTS were randomly divided into conventional PT (control group) and conventional PT plus cervical spine manual therapy (intervention group). All patients received 10 sessions of supervised conventional physical therapy (wrist splint, electrotherapy and wrist joint mobilization). Patients in the cervical spine manual therapy group also had manual therapies techniques given to their neck. Visual analog scale (VAS), Boston Carpal Tunnel Questionnaire (BCTQ), the disabilities of the arm, shoulder, and hand (DASH) questionnaire, median nerve motor distal latency (mMDL), and median sensory nerve conduction velocity (mSNCV) were assessed at three points: baseline, post-intervention, and six months later.

Results: The cervical spine manual therapy group showed significantly greater improvement in VAS, DASH score, mMDL, and mSNCV in post-intervention and follow-up compared to the conventional group. There was no significant difference in two subscales of BCTQ at post-intervention for two groups, whereas these two subscales showed a significant difference in favor of the cervical manual therapy group at follow-up.

Conclusion: The analysis of results showed that conventional CMT combined with PT could be more effective in improving the clinical outcomes and electrodiagnostic findings of patients with CTS compared to conventional PT only in the long term. Therefore, it can be suggested as a proper therapeutic method in CTS.

Keywords: Carpal tunnel syndrome; Cervical spine; Manual therapy; Neck; Rehabilitation.