Endoscopic interlaminar lumbar discectomy with splitting of ligamentum flavum

doi:10.3969/j.issn.2095-4344.2013.35.008

Abstract

Abstract:

BACKGROUND: Transforaminal endoscopic discectomy needs to dissociate the ligamentum flavum, and if combined with the continuous dilator and working channel, it can keep the intact ligamentum flavum no matter how small the incision may be (even 3-5 mm).
OBJECTIVE: To present the technique of interlaminar endoscopic lumbar discectomy with ligamentum flavum splitting.
METHODS: We performed operations on 16 male and 14 female patients by interlaminar endoscopic lumbar discectomy with ligamentum flavum splitting. The average age of the patients in the study was (48±15) years. The chief complaint before surgery was radiculopathy confined to one leg. The anatomic operative level was L_3-4in one case, L_4-5 in 13 cases and L₅-S₁ in 16 cases. The ruptured disc migrated superiorly in four cases and inferiorly in seven cases, and intraoperative electromyo-graphic monitoring was performed in all surgeries. The ligamentum flavum was split, and after withdrawing the working channel, the ligamentum flavum could reset itself.
RESULTS AND CONCLUSION: The total operation time was 20-40 minutes, and the follow-up period was (149±108) days. There were no abnormal signals on the intraoperative electromyography in any cases, and the reported symptoms were immediately improved in all patients after the operation. Follow-up magneticresonance imaging showed a disappearance of the ruptured disc without defect in the ligamentum flavum. There were no operation-associated complications in all the patients. Interlaminar endoscopic lumbar discectomy with ligamentum flavum splitting is a feasible approach.

Key words: bone and joint implants, basic experiment of spinal, endoscopy, percutaneous discectomy, lumbar spine, ligamentum flavum, laminar space, split

CLC Number:

R318

Wang Long, Chu Ge, Zhang Hong-qi, Guo Chao-feng, Tang Ming-xing, Gao Qi-le, Qiao Wei-min, Yan Tao . Endoscopic interlaminar lumbar discectomy with splitting of ligamentum flavum[J]. Chinese Journal of Tissue Engineering Research, 2013, 17(35): 6267-6272.

Figures/Tables 4

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