Concomitant low-grade isthmic L5-spondylolisthesis does not affect the course of adolescent idiopathic scoliosis

European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
Dietrich SchlenzkaLeena Ristolainen

Abstract

Scoliosis with spondylolisthesis was described in 4.4-48%. No information on clinical impact or outcome is available. To determine the prevalence of this pathology and to investigate its affect on the course of adolescent idiopathic scoliosis (AIS). A retrospective comparative study using patients' records, radiographs, the national inpatient registry, and Patient-rated outcome measures (PROM): Oswestry disability index (ODI), modif.SRS-24 questionnaire, WHO-Quality of life index (WHOQoL), Numerical rating scale (NRS) for pain. Clinical follow-up time was 4.4 (4.3) years, and follow-up rate was 95%. PROM follow-up time 26.4 (2.8) years χ2 statistics and t-tests were applied. Significance threshold was set at P < 0.05. Out of 1531 consecutive Caucasian AIS patients, aged 13.9 (1.8) years, primary curve 29.2 (11.5) drs., 120 (7.8%) had low-grade isthmic L5-slip of mean 15.0 (8.3)% (Study group = S). The distribution of the curve types in the study group was comparable to the remaining 1411 patients with AIS only. In comparison with a pair-matched control group (C) at admission, back pain interfering with activities of daily living had 4.2% of the study group and 1.7% of the control group, at clinical follow-up 2.6/4.2% resp. (n.s...Continue Reading

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