Effect of ulnar styloid fracture on functional outcome of Colle's fractures: a comparative analysis of two groups

Abstract

Background: The negative impact of ulnar sided injuries on distal radius fractures has opened another field of research and is gaining more attention. The aim of our study is to assess the impact of ulnar styloid process fracture on functional outcome of distal radius fractures managed conservatively. Methods: Radiological and Medical records of 150 patients of distal radius with and without styloid process fractures were retrospectively reviewed. Fractures were classified as per Frykman’s classification and patients were assessed for pain, grip and range of motion in addition to other parameters in Mayo’s wrist score. The instability at distal radioulnar joint was evaluated and compared in two groups. Results: There was a measurable difference in motion, strength, pain, or functional scores between the two groups. Mean mayo score at final follow up in Group I was 90±5 and in Group II was 80±4 and the difference was statistically significant (P value <0.05). DRUJ instability was noted in 20 % of patients in Group II and most of them were symptomatic. Conclusions: We conclude that presence of a fracture of ulnar styloid process with distal radius fracture results in a weak and painful wrist in a significant number of patients. They should be dealt more vigorously and managed effectively to prevent disabling distal radioulnar joint instability.