Application of a self-designed assistant device for distal osteotomy and reduction in ulnar impaction syndrome
10.3760/cma.j.cn115530-20250124-00037
- VernacularTitle:自制辅助尺骨远端短缩截骨复位器在尺骨撞击综合征短缩截骨术中的应用
- Author:
Wei LI
1
;
Mingtong HAN
;
Gaofeng ZHANG
;
Zhi ZHANG
;
Hui XU
;
Benlei WEI
;
Cunmin RONG
;
Bo ZHANG
;
Qingluan HAN
;
Qing CHANG
Author Information
1. 济宁医学院附属医院手足外科，济宁 272100
- Publication Type:Journal Article
- Keywords:
Wrist joint;
Osteotomy;
Surgical instruments;
Ulnar impaction syndrome
- From:
Chinese Journal of Orthopaedic Trauma
2025;27(5):451-456
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the clinical efficacy of a self-designed assistant device for distal ulnar osteotomy and reduction in the surgical treatment of ulnar impaction syndrome.Methods:A retrospective analysis was performed to study the clinical data from the 27 patients with ulnar impaction syndrome who had been treated by distal ulnar shortening and fixation with 2 screws between January 2022 and August 2024 at Department of Hand and Foot Surgery,Affiliated Hospital of Jining Medical University. The cohort included 6 males and 21 females, with 13 left and 14 right sides affected and a mean age of (40.3±10.8) years (range: from 17 to 59 years). Based on their different assistant methods in osteotomy, the patients were divided into group A (15 cases) subjected to conventional freehand osteotomy and group B (12 cases) subjected to distal ulnar osteotomy and reduction assisted by our self-designed assistant device. Comparisons were made between the 2 groups regarding operative time, bone healing time, Mayo wrist function score at postoperative 16 weeks, number of the patients returning to their original occupations and complications.Results:There were no significant dif- ferences in the baseline characteristics between the 2 groups ( P>0.05). All patients were followed up postoperatively for (27.1±11.1) weeks (range: from 16 to 50 weeks). In group B, the operative time [50.0 (50.0, 62.5) min] and bone healing time [6.5 (6.0, 7.0) weeks] were significantly shorter than those in group A [80.0 (67.5, 92.5) min and 7.5 (6.8, 9.0) weeks] ( P<0.05). At postoperative 16 weeks, the Mayo wrist function score was 90.0 (85.0, 96.8) points for group A and 92.5 (85.0, 98.8) points for group B, showing no significant difference ( P>0.05). Five patients in group A and 4 ones in group B returned to their original work status, showing no significant difference either ( P>0.05). One case of non-union occurred in group A while no complication occurred in group B, demonstrating no significant difference either ( P>0.05). Conclusion:In the surgical treatment of ulnar impaction syndrome, compared with conventional freehand osteotomy, application of our self-designed assistant device for distal ulnar osteotomy and reduction is simple, less invasive, and comparable in functional recovery of the wrist, but superior in operative time and bone healing time.
