• Lærke Ragborg, Casper Dragsted, Benny Dahl, and Martin Gehrchen.
• Spine Unit, Department of Orthopedic Surgery, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark. Laerkeragborg@hotmail.com.
• Eur Spine J. 2020 Aug 1; 29 (8): 2091-2099.

PurposeTo investigate the impact of Scheuermann's Kyphosis (SK) on health -related quality of life (HRQOL) in adult patients and compare it to the general population. Moreover, to assess whether location of the kyphosis affects pelvic parameters, HRQOL, and pulmonary function.MethodsOf a cohort of 251 patients seen for a pediatric spinal deformity in the years 1972-1982 in our outpatient clinic, 55 had radiologically verified SK. Thirty-eight participated in the study and responded to HRQOL questionnaires, 34 had radiographs taken and 31 had pulmonary function testing. The patients were divided into two groups according to location of the SK apex: thoracic (Th) above Th10 and thoracolumbar (TL) from Th10 and below. Spinopelvic parameters were measured for all radiographs. The HRQOL scores for all SK patients were compared with normative data from a Scandinavian population. Pulmonary function measurements were compared between the Th and TL SK groups.ResultsMean follow-up was 39 ± 1.6 years, and mean age at follow-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 difference in the remaining domains and SRS-22r subscore (p > 0.18). The patients had significantly lower mean scores compared to normative values on SRS-22r domains 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. We did not find a difference in pulmonary function on percent predicted FEV1 (FEV1%) (p = 0.91) and percent predicted FEV1/FVC (FEV1/FVC%) (p = 0.82) between the two SK groups.ConclusionWe found a lower HRQOL in adult patients with SK 39 years after diagnosis regarding SRS-22r domains pain and self-image, and a tendency toward lower overall HRQOL compared with a background population. The location 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 and no difference in pulmonary function. These slides can be retrieved under Electronic Supplementary Material.

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