Effect of a strutted intradiscal spacer (DIVA®) on disc reherniation following lumbar discectomy: A 2-year retrospective matched cohort study

J Orthop. 2021 May 7:25:173-178. doi: 10.1016/j.jor.2021.05.007. eCollection 2021 May-Jun.

Abstract

Introduction: Discectomy for lumbar disc herniation has a high rate of reoperation and recurrent herniation.

Methods: Retrospectively matched cohort of patients undergoing lumbar discectomy alone or with a strutted intradiscal spacer.

Results: 133 discectomy and 112 patients with discectomy plus spacer were included. Pain and disability scores were significantly lower for both groups at 2 years. Patients receiving a strutted intradiscal spacer following discectomy had a reduced rate of all-cause reoperations and operations for recurrent herniations compared to discectomy alone.

Conclusion: Use of a strutted intradiscal spacer following discectomy improves surgical outcomes following surgery for lumbar herniation versus discectomy alone.

Keywords: ALIF, Anterior Lumbar Interbody Fusion; ASD, Absolute Standardized Difference; DIVA; DIVA, Device for Intervertebral Autonomy; Disc herniation; Intradiscal spacer; Lumbar discectomy; ODI, Oswestry Disability Index; PLIF, Posterior Lumbar Interbody Fusion; Reherniation; VAS, Visual Analogue Scale.