DOS 2019

184 · DOS Abstracts Scheuermann Kyphosis – A 39-year follow-up from diagnosis in non-operated patients Lærke Ragborg, Casper Dragsted, Benny Dahl, Martin Gehrchen Spine Unit, Department of Orthopedic Surgery, Rigshospitalet; Department of Orthopedics and Scoliosis Surgery, Texas Children’s Hospital and Baylor College of Medicine, Houston, Texas, USA Background: Previous studies have highlighted the impact on HRQOL in ado- lescent patients with SK; however, sparse information is available regarding the long-term effects of SK on HRQOL. Thoracolumbar (TL) SK has been associated with increased back pain compared to thoracic (Th) SK. Moreover, spino-pelvic parameters have been reported to impact on HRQOL. Purpose / Aim of Study: To investigate the impact Scheuermann Kyphosis (SK) has on Health Related Quality Of Life (HRQOL) in adult patients and com- pare it to the general population along assessing whether location of the kypho- sis affects pelvic parameters and HRQOL. Materials and Methods: Of a cohort of 242 patients seen for a pediatric spi- nal deformity in the years 1972-1982 in the outpatient clinic, 55 had radio- logically verified SK. Thirty-eight participated in the study and responded to HRQOL questionnaires, and 34 had radiographs taken. Patients were divided into two groups according to location of the SK apex: Thoracic (Th) above Th10 and Thoracolumbar (TL) from Th10 and below. Spino-pelvic parameters were measured for all radiographs. The HRQOL scores for all SK patients were com- pared with normative data from a Scandinavian population. Findings / Results: Mean follow-up was 39±1.6 years and mean age at fol- low-up was 53±2.4 years. We found lower score in the TL group for SRS-22r function domain (p=0.027) compared with the Th group, but no significant dif- ference in the remaining domains and SRS-22r subscore (p>0.18). Patients had significantly lower mean scores compared to normative values on SRS-22r do- mains pain (p=0.049) and self-image (p=0.006), but no statistically significant difference on SRS-22r subscore (p=0.064). There was no difference in pelvic parameters between the two SK groups. Conclusions: We found a lower HRQOL in adult patients with SK 39 years after diagnosis regarding SRS-22r domains pain and self-image, and a tendency to- wards lower overall HRQOL compared with a background population. The loca- tion of the SK apex did not seem to have an overall impact on HRQOL. There was no difference in pelvic parameters in the two groups. 140.