The Osteoporotic Vertebral Fracture Conservative Treatment Prognosis Score (OVF-CTPS): Development and Validation of
Jintao Ao1, Ronghui Cai1, Zhongning Xu1
1Department of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing Jishuitan Hospital, Beijing.
Study Design:
A prospective cohort study (Level III).
Objective:
To develop and validate a clinical scoring system (Osteoporotic Vertebral Fracture Conservative Treatment Prognosis Score, OVF-CTPS) for predicting the prognosis of conservative treatment in patients with osteoporotic vertebral fractures (OVFs), addressing clinical uncertainty in treatment selection.
Summary Of Background Data:
OVFs face uncertainty in choosing conservative versus surgical management. Ten percent to 40% of patients have conservative treatment failure ( e.g. , nonunion, collapse). Existing classification systems lack prognostic value, highlighting the need for a practical predictive tool.
Methods:
Two hundred one patients with acute OVFs undergoing conservative treatment were prospectively followed for 6 months. Baseline assessments included demographics, pain, quality of life measures, and multimodal imaging (X-ray, CT, and MRI). The primary outcome was conservative treatment failure. Independent predictors were identified using multivariate logistic regression and weighted to create the OVF-CTPS, which was validated using receiver operating characteristic (ROC) analysis.
Results:
The conservative treatment failure rate was 29.9%. Six independent predictors were identified: Sugita "bow-shaped" or "concave" type, standing vertebral collapse degree <80%, middle column/posterior wall injury, T2WI "diffuse low" signal, STIR linear black signal, and basivertebral foramen involvement. The OVF-CTPS (range: 0-13) demonstrated excellent predictive performance (AUC=0.918). At an optimal cutoff score of 6, the sensitivity was 91.3% and the specificity was 84.0%. The low-risk group (score <6) had a 96.3% treatment success rate, while the high-risk group (score ≥6) had a success rate of 32.3.
Conclusion:
The OVF-CTPS is a validated prognostic tool that integrates fracture morphology, injury severity, and MRI-based perfusion markers. It accurately stratifies patients based on their risk of conservative treatment failure, enabling clinicians to identify low-risk patients suitable for conservative care and high-risk patients who may benefit from early surgical evaluation.
