Expansion Open-door Laminoplasty With Foraminotomy Versus Anterior Cervical Discectomy and Fusion for Coexisting Multilevel Cervical Myelopathy and Unilateral Radiculopathy

Zhao Fang, Rong Tian, Tian-wei Sun, Sandip K Yadav, Wei Hu, Shui-qing Xie
Clinical Spine Surgery 2016, 29 (1): E21-7

STUDY DESIGN: This was a clinical prospective study.

OBJECTIVE: To assess whether clinical and radiologic outcomes differ between expansion open-door laminoplasty with foraminotomy (EOLF) and anterior cervical discectomy and fusion (ACDF) in the treatment of coexisting multilevel cervical myelopathy and unilateral radiculopathy (CMUR).

SUMMARY OF BACKGROUND DATA: No reports to date have compared clinical outcomes between anterior and posterior decompression for CMUR.

MATERIALS AND METHODS: We prospectively performed ACDF (n=59) in 2004, 2006, and 2008 and EOLF (n=62) in 2005, 2007, and 2009. The Japanese Orthopedic Association (JOA) score and recovery rate were evaluated. For radiographic evaluation, the lordotic angle and range of motion at C2-C7 were investigated.

RESULTS: Only 110 patients could be followed for >3 years (EOLF/ACDF: 56/54; follow-up rate, 90.9%). Demographics were similar between the 2 groups. Compared with ACDF, in EOLF group there were shorter operating time (144 vs. 178 min), less bleeding (175 vs. 192 mL), and fewer complications (P<0.05). Results of JOA score and recovery rate, at 3-year postoperative follow-up, showed no statistical difference for the 2 groups. Cervical lordosis of ACDF increased from 13.7 to 16.2 degrees, whereas that of EOLF group decreased from 14.6 to 13.3 degrees (P<0.05). The percentage of range of motion declined in the 2 groups (ACDF/EOLF), 57.4% versus 74.7% (P<0.05).

CONCLUSIONS: The 2 surgical procedures have similar clinical effects in treating multisegmental CMUR. However, the EOLF group demonstrated shorter operative time, less blood loss, and fewer complications; therefore, it proved to be a more effective and safer method.

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