Abstract
To systematically assess the efficacy of anterior cervical corpectomy and fusion (ACCF) versus posterior laminoplasty (LAMP) for cervical ossification of posterior longitudinal ligament (OPLL). PubMed and EMBASE, Cochrane Library, CBM, CNKI, Wanfang and VIP were collected from 7 databases of ACCF, LAMP from 1970 to May 2018. According to the criteria, the articles were included and independently screened by two authors. The quality of the articles was assessed by using the MINORS scale (methodological index for non randomized studies). After extracting the data from the article, the JOA score, cervical curvature, operation time, bleeding volume, excellent and good rate, recovery rate, adverse events and secondary surgery were analyzed by using Review Manager 5.3 software. Finally, a total of 22 articles with 1 678 patients were included in this Meta-analysis, with 810 patients in ACCF group and 868 patients in LAMP group. Meta analysis results showed that the ACCF group had higher postoperative JOA scores[MD=0.63, 95%CI(0.05, 1.20), P= 0.03], higher excellent rate [OR=1.85, 95%CI (1.14, 3.02), P=0.01] and higher recovery rate [OR=11.90, 95%CI (5.75, 18.05), P=0.000 1]. But the LAMP group has a shorter operative time [MD=52.19, 95%CI (29.36, 75.03), P<0.000 01], less complications [OR=1.56, 95%CI (1.03, 2.35), P=0.04] and less reoperations [OR=3.73, 95%CI (1.62, 8.57), P=0.002]. There was no significant different in postoperative lordosis [MD=3.15, 95%CI(-0.14, 6.43), P=0.06] and blood loss[SMD= 0.26, 95%CI(-0.05, 0.57), P=0.10] between two groups. The recovery of functionof ACCF group was better, but operation time, complications and reoperations of LAMP group were all better than ACCF group. There was no difference in postoperative lordosis and intraoperative blood loss between two groups. However, there are some limitations in this study. Therefore, higher quality and larger sample size clinical studies are needed to further verify.
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