Evaluation of using grip strength and hand muscle cross-sectional area to predict secondary fractures post distal radius fracture.

UNLABELLED

Grip strength measurement, as a surrogate of sarcopenia diagnosis, effectively predicts secondary fracture risk in distal radius fracture patients. This simple tool enhances clinical practice by identifying high-risk patients for targeted interventions, potentially preventing or reversing functional decline and recurrent fractures.

PURPOSE

To evaluate grip strength and hand muscle cross-sectional area as predictors of secondary fracture risk in patients with a history of distal radius fracture (DRF), serving as surrogates of the diagnosis of sarcopenia.

METHODS

A retrospective cohort study of 745 DRF patients was analyzed with their grip strength data using Cox proportional hazards regression, receiver operating characteristic analysis, and Kaplan-Meier analysis to predict secondary fracture risk over an average of 12 years. Hand muscle cross-sectional area was similarly analyzed.

RESULTS

Patients with a history of DRF were predicted to have a 4.1% higher likelihood of experiencing a secondary fracture per kilogram reduction in their grip strength (p < 0.008), independent of age and sex. Patients were categorized as high-risk (≤ 16 kg), moderate-risk (17-24 kg), or low-risk (≥ 25 kg) (p < 0.001). High-risk patients showed a 2.2-fold (95% CI = 1.55-3.17) higher recurrent fracture risk compared to low-risk patients. Cumulative secondary fracture probabilities of the high-risk group patients at 5, 10, and 15 years were estimated to be 16%, 30%, and 54%, respectively.

CONCLUSIONS

Grip strength measurement, as a surrogate of sarcopenia diagnosis, effectively predicts secondary fracture risk in patients with DRF. This simple tool could improve clinical practice by identifying high-risk patients for targeted interventions to prevent recurrent fractures or even reverse functional decline.