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Rotation-traction manipulation versus cervical traction for axial neck pain caused by cervical degenerative disc
Yuhang Yang1,2, Ping Wang1,2,3, Minshan Feng4
1Department of Spine, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.
Background:
Axial neck pain is a common manifestation of cervical degenerative disc disease (CDD). Rotation-traction manipulation (RTM) is widely used in China, but its comparative effectiveness and safety versus cervical traction remain uncertain.
Methods:
In this prospective multicenter randomized controlled trial, 154 adults with CDD-related axial neck pain were randomized 1:1 to receive RTM (7 sessions over 2 weeks) or cervical traction (daily for 2 weeks). Outcomes were assessed at baseline, during treatment, and at 1 and 3 months after treatment. The primary outcome was pain intensity measured by the visual analogue scale (VAS); secondary outcomes were neck tenderness score (NTS) and cervical range of motion (ROM). Intention-to-treat analyses with multiple imputation were performed.
Results:
All 154 randomized participants were included in the analyses, and 151 completed follow-up. Both groups showed significant improvement over time in VAS and ROM (both P < 0.001). Confirmatory mixed-effects analyses did not demonstrate significant between-group differences in VAS or ROM after adjustment for multiple comparisons. Exploratory analyses suggested that RTM provided faster improvement during the treatment phase and a small cumulative advantage in pain reduction, whereas cumulative ROM improvement did not differ significantly between groups. RTM was also associated with a faster reduction in neck tenderness severity. Adverse events were mild and infrequent, and no treatment-related radiographic deterioration was observed.
Conclusions:
Both RTM and cervical traction were associated with clinical improvement in patients with CDD-related axial neck pain. Confirmatory analyses did not demonstrate robust superiority of RTM for pain or cervical ROM, whereas exploratory analyses suggested faster early improvement and a small cumulative pain benefit with RTM. NTS findings should be interpreted cautiously because the tenderness score has not been formally validated. No serious adverse events were observed.
Trial Registration:
Chinese Clinical Trial Registry, ChiCTR2400082667. Registered retrospectively on 4 April 2024.
