Lumbar Discectomy Using Lagenbech Retractor, A Cost Effective Minimally Invasive Technique. Study of 520 Cases
Keywords:
ostolsteral disc Herniation, Lagenbach RetactorAbstract
Objective: Conventional disc surgeries though have good results, may result in subsequent damage due to trauma to erector spinae, ligaments and bones.
Materials & Methods: A total of 520 patients who underwent lumbar discectomy were studied. 388 were male and 132 were female. The mean age in this study was 35 years. Only patients with symptomatic posterolateral disc prolapse were included in the study. All patients were investigated with MRI or CT scan of lumbar spine. Only ten patients were investigated with myelography. The followup period was up to two years. Oswestry Disability Index of low backpain disability was also used as specific parameter in some of the cases.
Results: Overall success rate for pain relief was 93.8%. Only 13% had occasional pain on exertion. The hospital stay was < 2 days. The most common complication was recurrent sciatica (5.7%), and these patients reported within six to eight months postoperatively. Other complications encountered were operation on wrong level (1.34%) discitis (0.76%), dural tear (0.19%), nerve root injury (0.19%) and failed back syndrome (2.30%).
Conclusion: Author concludes that lumbar discectomy performed through a small (< 2.0 cm) incision using manual retraction with Lagenbech retractor, headlight and magnifying loupes is a safe and cost effective procedure with distinct advantages such as reduced hospital stay, minimal post-operative pain, early mobilization and good alternative to conventional laminectomy/discectomy procedures.
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