Prevalence of lumbar scoliosis and its association with clinical symptoms -A large scale general population survey-: The Wakayama Spine Study- — The International Society for the Study of the Lumbar Spine
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Prevalence of lumbar scoliosis and its association with clinical symptoms -A large scale general population survey-: The Wakayama Spine Study- (#ZO4)

Satoshi S.A Stashi Arita 1 , Yuyu Y.Y Ishimoto 1 , Hiroshi H.H Hashizume 1 , Keiji K.N Nagata 1 , Shigeyuki S.M Muraki 2 , Hiroyuki H.O Oka 3 , Masanari M.T Takami 1 , Shunji S.T Tsutsui 1 , Hiroshi H.I Iwasaki 1 , Yasutsugu Y.Y Yukawa 1 , Toru T.A Akune 4 , Hiroshi H.K Kawaguchi 5 , Sakae S.T Tanaka 6 , Kozo K.N Nakamura 7 , Munehito M.Y Yoshida 8 , Noriko N.Y Yoshimura 2 , Hiroshi H.Y Yamada 1
  1. Department of Orthopaedic Surgery, Wakayama Medical University, Kimiidera, Wakayama City, Wakayama , Japan
  2. Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical and Research Centre, Faculty of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan
  3. Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical and Research Center, Faculty of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan
  4. Rehabilitation Services Bureau, National Rehabilitation Center for Persons With Disabilities, Tokorozawa City, Saitama, Japan
  5. Department of Orthopaedics and Spine, Tokyo Neurological Center, Toranomon, Minato-ku, Tokyo, Japan
  6. Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo Hospital, Hongo, Bunkyo-ku, Tokyo, Japan
  7. Department of Orthopaedic Surgery, Towa Hospital, Towa Adachi-ku, Tokyo, Japan
  8. Department of Orthopaedic Surgery, Sumiya Orthopaedic Hospital, Wakayama City, Wakayama, Japan

Objective

This study aimed to investigate the prevalence of radiographic lumbar scoliosis (LS) and its association with low back pain (LBP), leg symptoms, and quality of life (QOL) in the general population.

Methods

We used the baseline data of the Wakayama Spine Study performed in 2008-2013. LS was defined based on the presence of coronal curvature with a lumbar spine Cobb angle ≥10° using radiographic anteroposterior X-ray analysis of T10-L5 spine in the standing position. Patients under 40 years of age. Those who had previously undergone lumbar surgery in the past were excluded from the study.

Results

Complete data of a total of 938 patients (307 male and 631 female, mean age 67.3±12.4 years) were readily available. The prevalence of LS was estimated to be 23.9% among all patients, 14.4% in men, and 28.4% in women (p<0.001). On the other hand, overall prevalence of LBP was found to be 39.6% among all patients, 48.0% in LS patients and 37.2% in non-LS patients (p=0.004). Prevalence of leg symptoms were found to be 8.9% among all patients, 14.4% in LS patients, and 7.2% in non-LS patients (p=0.001). Logistic regression analysis adjusted for age, sex, and body mass index (BMI) demonstrated significant correlation between LS and LBP (LS: odds ratio [OR], 1.43; 95% CI: 1.04–1.97). Logistic regression analysis adjusted for age, sex, and BMI demonstrated that LS was also significantly associated with leg symptoms (LBP: OR, 1.92; 95% CI:1.16–3.15). Furthermore, the average ODI was estimated to be 15.0% in LS patients and 12.1% in non-LS patients, corresponding to a significant difference (p=0.011). In addition, a significant difference in ODI was found between LS and non-LS groups (Q2; p=0.01, Q3; p=0.03, Q4; p=0.01, Q6; p=0.01, Q9; p=0.001).

Conclusion

Based on this general population study, radiographic LS showed significant correlation with LBP, leg symptoms, and the ODI.

 

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