Introduction: Previous study on minimum 20 years clinical outcome in patients who underwent 3‐dimentionnaly oriented correction surgery for scoliosis has shown satisfactory clinical result with very low incidence of low back pain (annual meeting of SRS, 2007). However, SRS‐22 health‐related quality‐of‐life questionnaire has revealed that assessment of self‐image (3.7) and mental health (3.9) tended to be lower than that of function and pain (4.2 and 4.3 respectively). Without control of SRS‐22 in our country, it remained unsettled whether this tendency was really worse than general people in our population. The purpose of the study was to investigate SRS‐22 questionnaire of non‐scoliosis group to compare with that of long‐term follow‐up group.
Methods: 771 employees in two institutes where authors are engaged were sent SRS‐22 questionnaire with additional question about age, gender, and past history including scoliosis. In 763 responders, 36 employees who had been pointed out scoliosis were excluded and 727 were included in this study. There were 718 female, 5 male (4 unknown), with average age of 29 years (20–64 years). The average of function, pain, self‐image, and mental health (except satisfaction) was calculated. Cronbach's alpha was calculated to evaluate internal consistency of each domain.
Results: The average of each domain of SRS‐22 was 4.5 (function), 4.3 (pain), 3.5 (self‐image), and 3.5 (mental health). Cronbach's alpha was 0.405, 0.719, 0.752, and 0.719 respectively. No significant difference was found between non‐scoliosis group and minimum 20 years postoperative group in the assessment of pain. However, assessment of function was significantly higher, and that of self‐image and mental health were significantly lower in non‐scoliosis group than in postoperative group.
Conclusion: Big sample size of non‐scoliosis group resulted in these statistical difference. This study revealed that quality‐of‐life in patients who underwent instrumentation surgery for scoliosis and followed minimum 20 years was as same as that in non‐scoliosis group, even on self‐image and mental health of SRS‐22.
Significance: As results of each domain of SRS‐22 may differ according to populations, control group is necessary to evaluate long‐term postoperative results.
** RUSSELL A. HIBBS AWARD NOMINEE FOR BEST CLINICAL PRESENTATION