Prevalence and Factors Associated with Redisplacement in Adult Distal Radius Fractures Treated with Closed Reduction and Cast Immobilization
Keywords:
Redisplacement, Distal radius fracture, Closed reduction, Cast immobilization, Risk factorsAbstract
Redisplacement following treatment of distal radius fractures with closed reduction and cast immobilization is a common complication that may affect treatment outcomes. This study aimed to determine the prevalence and factors associated with redisplacement in adult patients with distal radius fractures. This retrospective analytical study included patients aged ≥18 years who were treated with closed reduction and cast immobilization at Bangyai Hospital, Nonthaburi. Data were collected from medical records and radiographic images. Redisplacement within 14 days was defined as the dependent variable. Statistical analyses included descriptive statistics, independent t-test or Mann–Whitney U test, chi-square test or Fisher’s exact test, and logistic regression analysis. Statistical significance was set at p < 0.05.
A total of 147 patients were included. The prevalence of redisplacement within 14 days was 56.5% (83/147). The redisplacement group had a significantly higher mean age than the non-redisplacement group (68.8 ± 16.4 vs 54.5 ± 17.8 years, p<0.001). Redisplacement was significantly associated with osteoporosis, AO/OTA type C fractures, pre-reduction intra-articular involvement, and dorsal comminution. (p<0.05). Radiographic parameters, including radial height, radial inclination, and intra-articular step-off, showed significant differences between the two groups both before and after reduction (p<0.05). Multivariable logistic regression analysis showed that age (Adj.OR 1.04, 95% CI 1.00–1.08, p=0.028), pre-reduction intra-articular involvement (Adj.OR 3.34, 95% CI 1.11–10.03, p=0.032), and dorsal comminution (Adj.OR 15.06, 95% CI 5.90–38.46, p<0.001) were associated with redisplacement.
In conclusion, the prevalence of redisplacement was 56.5%. The main associated factors were age, pre-reduction intra-articular involvement, and dorsal comminution. These findings may be used for risk assessment and treatment planning in patients with distal radius fractures treated with closed reduction and cast immobilization.
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