PDF icon PDF herunterladen
J Wrist Surg 2025; 14(02): 114-120
DOI: 10.1055/s-0043-1778095
Scientific Article

Suture-Based Distal Radioulnar Joint Stabilization: A Biomechanical Evaluation in a Cadaveric Model

Alexander R. Graf 
1   Division of Hand and Upper Extremity, Department of Orthopedic Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin
,
Adil S. Ahmed
2   Division of Hand and Upper Extremity, Department of Orthopedic Surgery, Emory University, Atlanta, Georgia
,
Dan Thompson
2   Division of Hand and Upper Extremity, Department of Orthopedic Surgery, Emory University, Atlanta, Georgia
,
Michael B. Gottschalk
2   Division of Hand and Upper Extremity, Department of Orthopedic Surgery, Emory University, Atlanta, Georgia
,
Eric R. Wagner
2   Division of Hand and Upper Extremity, Department of Orthopedic Surgery, Emory University, Atlanta, Georgia
,
Nina Suh
2   Division of Hand and Upper Extremity, Department of Orthopedic Surgery, Emory University, Atlanta, Georgia
› Institutsangaben
Funding This study was supported by grant funding from the 2021 American Foundation for Surgery of the Hand Resident/Fellow Fast Track Grant (Award 3770).
› Weitere Informationen
   Lizenzen und Reprints
Preview

Abstract

Purpose Management of acute distal radioulnar joint (DRUJ) instability is complex and controversial. Common treatment options include prolonged immobilization, stabilization with wires, and acute triangular fibrocartilage complex repair. However, none of these permits an early range of motion. The purpose of this study is to investigate the feasibility of a suture-based stabilization (SBS) technique for acute DRUJ instability to permit early active motion.

Materials and Methods A biomechanical study utilizing eight cadaveric arms was performed. All specimens were tested in the intact state prior to the creation of bidirectional DRUJ instability. For the SBS group, 2-mm suture tapes with suture button fixation were utilized to recreate the respective contributions of distal oblique bundle and volar and dorsal radioulnar ligaments to DRUJ stability. All specimens were cyclically loaded with a simulated ballottement stress of 20N in forearm positions of neutral, 60 degrees of pronation and 60 degrees of supination. Range of motion and total translation were measured and then compared between the two groups.

Results The average range of motion in the intact and SBS specimens was 174 and 175 degrees, respectively. There were no significant differences in displacement between the intact and SBS group in neutral and in supination. However, the SBS group had less translation than the intact group in pronation.

Conclusion For acute DRUJ instability, the described SBS technique provides similar stability to the native intact DRUJ without compromising the range of motion in a cadaveric model. Future comparative studies are warranted prior to translation into the clinical arena.

Clinical Relevance This is a biomechanical study investigating a treatment technique for acute DRUJ instability that would allow an early range of motion.

Keywords

DRUJ instability - suture-based stabilization - distal radius fracture - biomechanical - distal oblique bundle

Investigation performed at the Emory University, Atlanta, Georgia


Note

Each author certifies that his or her institution approved the human protocol for this investigation and that all investigations were conducted in conformity with the ethical principles of research.




Publikationsverlauf

Eingereicht: 21. Mai 2023

Angenommen: 12. Dezember 2023

Artikel online veröffentlicht:
22. Januar 2024

© 2024. Thieme. All rights reserved.

Thieme Medical Publishers, Inc.
333 Seventh Avenue, 18th Floor, New York, NY 10001, USA