Restoration of Lumbar Lordosis After Posterior Lumbar Interbody Fusion with 4 Degree Cage in Degenerative Spinal Disease (요추 퇴행성 질환에서 4도 케이지를 사용한 후방 요추체간 유합술은 요추 전만각을 얼마나 회복시키는가?)

CHO KYU JUNG (조규정); 김영태; 박승림; 홍승현

Restoration of Lumbar Lordosis After Posterior Lumbar Interbody Fusion with 4 Degree Cage in Degenerative Spinal Disease

Journal of Korean Society of Spine Surgery
Abbr : J Kor Spine Sur
2013, 20(2), pp.51-57
Publisher : Korean Society Of Spine Surgery
Research Area : Medicine and Pharmacy > Orthopedic Surgery

CHO KYU JUNG ¹, 김영태 ¹, 박승림 ¹, 홍승현 ¹

¹인하대학교

Accredited

ABSTRACT

Study Design: Retrospective radiological evaluation. Objectives: This purpose of this study is to determine how much lumbar lordosis and disc heights are restored after posterior lumbar interbody fusion (PLIF) with cage in degenerative spinal disease. Summary of Literature Review: Restoration of lumbar lordosis in lumbar spine surgery is crucial for clinical outcomes, but there are few studies about the relationship between restoration of lumbar lordosis and cage. Material and Method: Eighty-one patients with degenerative spinal diseases underwent PLIF using metal cage with 4o lordotic angle. The mean age was 61 year-old (range 38-83 years). Cases with late complications including nonunion, subsidence of cage and instrument failure were excluded in this study. Lumbar lordosis, segmental lordosis, disc height, and sagittal alignment were analyzed on radiographs. Results: The fused level was one segment in 62 patients and two segments in 19 patients. All patients had the fusion from L3 to the sacrum. Preoperative lumbar lordosis was 34.2o, improved to 34.6o after surgery, and then changed to 32.2o at the final follow-up,demonstrating that the cage with 4o lordotic angle was not effective to restore lumbar lordosis. Segmental lordosis at the level of cage decreased at the final follow-up as compared to preoperative value at all segments. Disc height was improved at the final follow-up as compared to preoperative value. Conclusion: Disc height was restored after PLIF using cage in the surgery for degenerative lumbar spine. However, lumbar lordosis and segmental lordosis were decreased at the final follow-up as compared to preoperative lordosis.

KEYWORDS

Posterior lumbar interbody fusion, Cage, Lumbar Lordosis, Segmental Lordosis, Disc Height

Citation status

* References for papers published after 2023 are currently being built.

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