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Retroperitoneal Extrapleural Approach for Corpectomy of the First Lumbar Vertebra : Technique and Outcome

Journal of Korean Neurosurgical Society 2019년 62권 1호 p.61 ~ 70
Zidan Ihab, Khedr Wael, Fayed Ahmed Abdelaziz, Farhoud Ahmed,
소속 상세정보
 ( Zidan Ihab ) - Alexandria University Faculty of Medicine Department of Neurosurgery
 ( Khedr Wael ) - Alexandria University Faculty of Medicine Department of Neurosurgery
 ( Fayed Ahmed Abdelaziz ) - Alexandria University Faculty of Medicine Department of Neurosurgery
 ( Farhoud Ahmed ) - Alexandria University Faculty of Medicine Department of Neurosurgery

Abstract


Objective: Corpectomy of the first lumbar vertebra (L1) for the management of different L1 pathologies can be performed using either an anterior or posterior approach. The aim of this study was to evaluate the usefulness of a retroperitoneal extrapleural approach through the twelfth rib for performing L1 corpectomy.

Methods: Thirty consecutive patients underwent L1 corpectomy between 2010 and 2016. The retroperitoneal extrapleural approach through the 12th rib was used in all cases to perform single-stage anterior L1 corpectomy, reconstruction and anterior instrumentation, except for in two recurrent cases in which posterior fixation was added. Visual analogue scale (VAS) was used for pain intensity measurement and ASIA impairment scale for neurological assessment. The mean follow-up period was 14.5 months.

Results: The sample included 18 males and 12 females, and the mean age was 40.3 years. Twenty patients (67%) had sensory or motor deficits before the surgery. The pathologies encountered included traumatic fracture in 12 cases, osteoporotic fracture in four cases, tumor in eight cases and spinal infection in the remaining six cases. The surgeries were performed from the left side, except in two cases. There was significant improvement of back pain and radicular pain as recorded by VAS. One patient exhibited postoperative neurological deterioration due to bone graft dislodgement. All patients with deficits at least partially improved after the surgery. During the follow-up, no hardware failures or losses of correction were detected.

Conclusion: The retroperitoneal extrapleural approach through the 12th rib is a feasible approach for L1 corpectomy that can combine adequate decompression of the dural sac with effective biomechanical restoration of the compromised anterior load-bearing column. It is associated with less pulmonary complication, no need for chest tube, no abdominal distention and rapid recovery compared with other approaches.

키워드

Spine; Lumbar vertebrae; Spinal fusion

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