| Long-term Results of Single Level Posterior Lumbar Interbody Fusion with Stand-alone Cage in Degenerative Spine Diseases |
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Kwang-Woo Park M.D., Dae-Yong Kim M.D., Sang-Gu Lee M.D., Chan-Jong Yoo M.D., Woo-Kyung Kim M.D., Chan-Woo Park M.D. |
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Department of Neurosurgery, Gil Medical Center, Gachon Medical School, Incheon, Korea |
| 퇴행성 척추질환의 단독 Cage를 이용한 추간 유합 환자의 장기간 추적 관찰 결과 |
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박광우ㆍ김대용ㆍ이상구ㆍ유찬종ㆍ김우경ㆍ박찬우 |
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가천대학교 의과대학 길병원 신경외과학교실 |
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| Abstract |
Objective: Posterior lumbar interbody fusion(PLIF) surgeries have been done for many years for the treatment of degene- rative lumbar diseases. There is controversy regarding the use of interbody fusion cages as stand-alone devices in patients with degenerative disk disease. A clinical comparison was made between a stand-alone cage procedure and cages with pedicle screw procedure.
Methods: From January 2000 to June 2004, this retrospective review was compared 2 data sets, including consecutive patients who were diagnosed with degenerative lumbar disease and were fused to the lumbar spine using a posterior approach. Surgical and hospital details, patient demographics, and Prolo scores were collected. And we checked that fusion rates and change of disc heights were measured. All statistical analyses were performed by using SPSS software version 11.5(SPSS Institute Inc., Chicago, IL).
Results: The stand-alone group included 34 patients(16 male and 18 female). And the posterior fixation group included 45 patients(16 male and 29 female).The mean age of the stand-alone group was 43.7 years and of the posterior fixation group 46.3 years. The mean follow-up period was 58.6 months in the stand-alone cage group and 60.2 months in the posterior fixation group. Both groups showed significant improvement in back and leg pain after surgery. There were no statistically significant differences in Prolo score. Postoperative complications and revisions were 15.5% in the pedicle screw group compared with 5.9% in the stand-alone group. The stand-alone group resulted in shorter operative time and less blood loss. Fusion rates were measured 91.4% in the stand-alone group and 93.3% in the pedicle screw group. The average of disc height was decreased to 2.4mm in stand-alone group. But the prognosis was not worsen in spite of prominent subsidence.
Conclusion: PLIF with stand-alone cage was a useful technique for achieving spinal fusion and have been shown to have an acceptable clinical success rate in appropriately selected patients. |
| Keywords:
Stand-alone cageㆍPLIFㆍPedicle screwㆍLong-term results |
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