Ultrasonographic Assessment of the Pronator Quadratus Muscle after Surgical Treatment for Distal Radius Fractures.
10.12671/jkfs.2017.30.2.69
- Author:
Dong Hyuk CHOI
1
;
Hyun Kyun CHUNG
;
Ji Won LEE
;
Cheol Hwan KIM
;
Yong Soo CHOI
Author Information
1. Department of Orthopedic Surgery, Kwangju Christian Hospital, Gwangju, Korea. stemcellchoi@naver.com
- Publication Type:Original Article
- Keywords:
Distal radius fracture;
Pronator quadratus;
Ultrasonography
- MeSH:
Atrophy;
Follow-Up Studies;
Hand Strength;
Humans;
Pronation;
Radius Fractures*;
Radius*;
Range of Motion, Articular;
Ultrasonography;
Wrist
- From:Journal of the Korean Fracture Society
2017;30(2):69-74
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: This study was to assess the morphological changes of the pronator quadratus (PQ) muscle using an ultrasonography in the volar locking plate fixation group and in the percutaneous K-wire fixation group for distal radius fracture, and to evaluate the impact on clinical outcomes. MATERIALS AND METHODS: Fifty-four patients who received surgical treatment for distal radius fracture were enrolled in this study. They were divided into two groups according to treatment modality: Group 1 included 34 patients who underwent internal fixation with volar locking plate and Group 2 included 20 patients with percutaneous K-wire fixation. Thickness of the PQ muscle was measured using an ultrasonography at the final follow-up. We evaluated the outcomes using the Mayo wrist score, wrist range of motion, and grip strength at the final follow-up. RESULTS: Compared with the uninjured side, thickness of the PQ muscle showed 31.9% of mean atrophy in Group 1 and 11.4% in Group 2. The atrophy of PQ muscle was severe in Group 1 (p=0.01). However, there was no significant difference in the mean Mayo wrist score between the two groups (83.1±10.9 in Group 1 and 80.2±8.9 in Group 2, p=0.28), except a mild limitation of pronation in Group 1. CONCLUSION: The healed PQ muscle from fracture itself after distal radius fracture revealed a morphological atrophy. Moreover, the volar locking plate resulted in greater atrophy of the PQ muscle, but there was no specific impact on clinical outcomes.
