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01.03.2012 | Original Article | Ausgabe 3/2012

European Spine Journal 3/2012

A comparison of anterior cervical discectomy and corpectomy in patients with multilevel cervical spondylotic myelopathy

Zeitschrift:
European Spine Journal > Ausgabe 3/2012
Autoren:
Qiushui Lin, Xuhui Zhou, Xinwei Wang, Peng Cao, Nicholas Tsai, Wen Yuan
Wichtige Hinweise
Xuhui Zhou has made equally contribution to writing this article.

Abstract

Background

The optimal surgical approach for multilevel cervical spondylotic myelopathy (CSM) has not been defined, and the relative merits of multilevel anterior cervical discectomy and fusion (ACDF) and anterior cervical corpectomy (2-level or skip 1-level corpectomy) and fusion (ACCF) remain controversial. However, few comparative studies have been conducted on these two surgical approaches.

Methods

This study retrospectively reviewed the case histories of 120 patients that underwent surgical treatment for 3- or 4-level CSM from July 2003 to June 2008. One hundred and twenty patients (81 male and 39 female) of mean age 58.3 ± 9.8 years (37–78) were included. The study compared perioperative parameters (blood loss, operation times), complications [surgery-related complications (CSF, hoarseness, epidural hematoma, C5-palsy, dysphagia), instrumentation and graft related complications (dislodgement, subsidence)], clinical parameters [Japanese Orthopedic Association (JOA) scores, Neck Dysfunciton Index (NDI) scores], and radiologic parameters (segmental lordosis, fusion rate).

Results

At a minimum of 2-year follow-up, both ACDF and ACCF groups demonstrated a significant increase in the JOA scores (preoperatively 9.25 ± 1.9 and 8.86 ± 1.9, postoperatively 13.86 ± 1.6 and 13.27 ± 1.8, respectively), segmental lordosis (preoperatively 9.79 ± 3.4 and 9.54 ± 3.0, postoperatively 17.75 ± 2.6 and 14.49 ± 2.5, respectively) and NDI scores (preoperatively 12.56 ± 3.0 and 12.21 ± 3.4, postoperatively 3.44 ± 1.7 and 5.68 ± 2.6, respectively). Six patients (2 dislodgement, 4 subsidence) in ACCF group had instrumentation and graft related-complications and they had no obvious neurological symptoms without a second operation. Blood loss (102.81 ± 51.3 and 149.05 ± 74, respectively, P = 0.000), NDI scores (P = 0.000), and instrumentation and graft related-complications (P = 0.032) were significantly lower in the ACDF group, whereas operation time (138.07 ± 30.9 and 125.08 ± 26.4, respectively, P = 0.021) and segmental lordosis (P = 0.000) were significantly greater in the ACDF group. Other parameters were not significantly different in the two groups.

Conclusions

Surgical managements of 3- or 4-level CSM by ACDF or ACCF showed no significant differences in terms of achieved clinical symptom improvements, with the exception of better postoperative NDI scores in ACDF. In addition, ACDF is better than ACCF in terms of blood loss, lordotic curvature improvement and instrumentation and graft related-complication rates, with the exception of operation times.

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