Application of Zero-profile Spacer in the Treatment of Three-level Cervical Spondylotic Myelopathy: 5-year Follow-up Results
Study Design.
A retrospective study.
Objective.
To assess the long-term results of zero-profile spacer for 3-level anterior cervical discectomy and fusion (ACDF).
Summary of Background Data.
Although widely used, there are still controversies about the long-term results of zero-profile spacer, especially in multilevel cases.
Methods.
Cases received 3-level ACDF for cervical spondylotic myelopathy (CSM) using either zero-profile spacer (n = 27) (ZP Group), or plate and cages (n = 34) (PC Group), and with 5-year follow-up were reviewed. Neurological function and life quality were assessed by modified Japanese Orthopaedic Association (mJOA) score, Neck Disability Index (NDI), and Short-Form 36 (SF-36) score. Disc height, cervical lordosis, fusion rate, and surgical complications were observed.
Results.
Neurological recovery and life quality improvement were similar in both groups. Disc height and cervical lordosis (C2-7 Cobb angle) were well restored after operations, but lost in both groups during follow-up. Loss of correction (LOC) in disc height was larger in ZP Group (11.38% vs 5.71%, P
Source: Spine - Category: Orthopaedics Tags: CERVICAL SPINE Source Type: research
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