• Pain physician · Nov 2015

    The Incidence and Risk Factors for Lumbar or Sciatic Scoliosis in Lumbar Disc Herniation and the Outcomes after Percutaneous Endoscopic Discectomy.

    • Ranhee Kim, Rae Hyung Kim, Chi Heon Kim, Yunhee Choi, Hyun Sook Hong, Sung Bae Park, Seung Heon Yang, Sung-Mi Kim, and Chun Kee Chung.
    • Department of Medicine, Seoul National University College of Medicine.
    • Pain Physician. 2015 Nov 1; 18 (6): 555-64.

    BackgroundSome patients with lumbar herniated intervertebral disc disease (HIVD) suffer from both pain and lateral shift or trunk list. In addition to pain, patients have concerns regarding whether trunk list is reversible. Surgical treatment is performed when pain is intractable to conservative management, but a reversal of trunk list is an incidental outcome. Percutaneous lumbar endoscopic discectomy (PELD) is one of the surgical treatment options for lumbar HIVD, but no results concerning its effect on trunk list have been reported.ObjectivesThe objectives of the present study were to determine the incidence of, and risk factors for, trunk list scoliosis or lateral shift and to report the outcomes of trunk list after PELD.Study DesignRetrospective case study. IRB No. H 1111-025-384 SETTING; University medical Center, Seoul, Korea.MethodsWe selected 164 patients who were less than 60 years old, complained of unilateral leg pain, and underwent PELD. We measured the maximum trunk shift from the central sacral vertical line (CSVL-max) on preoperative whole spine radiographs and classified trunk list as CSVL-max ≥ 10 mm. CSVL-max was measured on serial radiographs taken at one, 3, 6, and 12 months postoperatively in patients with trunk list.ResultsTwenty-nine patients (17.9%) had trunk list (M:F=10:19; mean age, 37.1 ± 11.24 years). Female gender (OR 4.28; 95% CI, 1.49-12.3) and HIVD at L4-5 (OR 5.6; 95% CI, 1.8-16.7) were risk factors for trunk list. Trunk list was normalized (CSVL-max < 10 mm) in 15 (52%) patients after PELD, and the median time for normalization was 3-6 months. Prognostic factors for the recovery of trunk list were not identified.LimitationsSelection bias should be considered in interpreting these results.ConclusionTrunk list, scoliosis or lateral shift, was observed in 18% of the patients at the time of surgery. Female gender and L4-5 disc herniation were risk factors for trunk list. Trunk list was reversible in more than 50% of patients within 6 months of PELD.

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