Analysis of Rod Fracture at the Lumbosacral Junction Following Surgery for Adult Spinal Deformity
- Author:
Tsuyoshi SAKUMA
1
;
Toshiaki KOTANI
;
Yasushi IIJIMA
;
Tsutomu AKAZAWA
;
Seiji OHTORI
;
Shohei MINAMI
Author Information
- Publication Type:Clinical Study
- From:Asian Spine Journal 2024;18(1):79-86
- CountryRepublic of Korea
- Language:EN
-
Abstract:
Methods:The study included data from 100 patients who underwent ASD surgery between 2012 and 2020. Fifteen of these patients presented with RFs. Patient demographics, clinical outcomes, and radiographic parameters were evaluated in each group.
Results:RFs were significantly more frequent in patients with a medical history of total hip arthroplasty (THA; p=0.01) or severe obesity (p=0.04). However, no significant differences in clinical outcomes, preoperative or postoperative measurements, or changes were found between pre- and postoperative radiographic parameters within the groups. Both pre- (p=0.01) and postoperative (p=0.02) anterior disc heights were significantly greater in the RF group than in the non-RF group. In the RF group, the postoperative lordotic angles of the lumbosacral junction significantly decreased compared with preoperative angles (p=0.02). Multiple logistic regression analysis demonstrated that a THA history (odds ratio, 34.2), severe obesity (odds ratio, 14.0), and preoperative anterior disc height (odds ratio, 1.2) were significant risk factors for RFs.
Conclusions:In this study, the greatest risk factors for postoperative lumbosacral RF after ASD surgery were THA history, severe obesity, and postoperative anterior disc height of ≥10. For patients at higher risk, the use of multirods is considered necessary.
