Mini-Open Versus Conventional Open Posterior Lumbar Interbody Fusion for the Treatment of Lumbar Degenerative Spondylolisthesis

• DOI: 10.1097/brs.0b013e3181a9d28e
• Publication Date: 2009-08-10T09:06:43Z
• Authors: Takahiro Tsutsumi...; Mitsuhiko Shimogata; Hiroshi Ohta; Hiromichi Misawa
• Keywords: Muscle Atrophy

In Brief Study Design. A comparative analysis of paraspinal muscle damage and radiographic parameters after mini-open conventional open posterior lumbar interbody fusion (PLIF). Objective. To determine whether PLIF decreases yields the same results as those in PLIF. Summary Background Data. Compared with PLIF, using a paramedian approach reduces intraoperative hemorrhage postoperative back pain. However, latter produces less than former remains unclear. No study has investigated slip reduction segmental lordosis at level 2 techniques. Methods. We studied 20 patients (10 each group) who had undergone single-level (midline approach) or (bilateral Wiltse pedicle screws cages L4–L5 for degenerative spondylolisthesis. The rate improvement Japanese Orthopedic Association score; parameters, including %slip; lordotic angle level; were examined. Postoperative multifidus (MF) atrophy degeneration evaluated magnetic resonance imaging. Results. significant differences detected between groups respect to score, angle, rate. Both showed %slip surgery. degree MF increase T2-signal intensity significantly lesser following Conclusion. Mini-open is safe effective. was invasive regard muscle. Damage compared statistically resulted