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Abstract Objective To study the clinical effect and safety of SDS9900 in non-operative therapy for patients with cervical spondylotic radiculopathy(CSR).Methods We retrospectively reviewed 106 patients with CSR from 2012.1 to 2015.1 which were divided into 2 groups：treatment group and control group as the way of traction.The cases in treatment group(30 cases) were treated with conventional drug therapy and non-surgical spinal decompression system of SDS9900 and those in control group were treated with conventional drug therapy and cervical traction.All patients received at least 12 months fellow-up.The clinical outcomes were evaluated by the height of intervertebral space，visual analogue scale(VAS) and NDI score.Results The height of intervertebral space in both groups broadened significantly after the treatment(P＜0.05).The height of the treatment group broadened significantly after the treatment，comparing with those of the control group(P＜0.05).The VAS and NDI score in both groups were significantly lower than that before the treatment(P＜0.05).Comparing the VAS score and NDI index of the two groups after the treatment：the scores of the treatment group decreased more significantly than those of the control group (P＜0.05).There was no complication in all patients.Conclusion The non-surgical spinal decompression system of SDS9900 can increase the height of intervertebral space in treating the cervical spondylotic radiculopathy，relieve the pain of neck effectively，and promote the recovery of cervical function.It should be further application and promotion in clinic.
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