Back to Search Start Over

Radioulnares Impingement nach Resektion der distalen Ulna und Ulnakopfhemiresektions-Interpositionsarthroplastik nach Bowers

Authors :
Michael Sauerbier
Richard A. Berger
Patricia G. Neale
M. Fujita
Michael E. Hahn
Kai Nan An
Source :
Handchirurgie · Mikrochirurgie · Plastische Chirurgie. 35:138-146
Publication Year :
2003
Publisher :
Georg Thieme Verlag KG, 2003.

Abstract

Resection of the distal ulna (Darrach operation) and the ulnar head hemiresection interposition arthroplasty (Bowers procedure) are common methods of treating the arthrotic distal radioulnar joint (DRUJ). The purpose of this study was to evaluate the dynamic effects of both the Bowers operation and the resection of the distal ulna on radioulnar impingement and dorsal-palmar displacement and to compare their biomechanical performances. With a dynamic forearm simulator forearm rotation was performed with simultaneous loading of relevant muscles. Torque along the forearm axis was generated by simulated muscle action with loading of the relevant tendons while the wrist was constrained to prescribed ranges of motion. The instability of the radius relative to the ulna was evaluated using displacement data of digitized landmarks in an ulnar coordinate system. Seven fresh-frozen cadaver upper extremities were used. Resection of the distal ulna created a significant instability of the forearm with movement of the radius ulnarly. Anteroposterior translations in each loading condition could be detected as well but the magnitude of displacement was little and less predictable. The results of the Bowers operation demonstrated significantly less instability compared with the Darrach results. Our data demonstrates that the dynamic behavior of the Bowers procedure is superior to the mechanical performance of complete resection of the distal ulna.

Details

ISSN :
14393980 and 07221819
Volume :
35
Database :
OpenAIRE
Journal :
Handchirurgie · Mikrochirurgie · Plastische Chirurgie
Accession number :
edsair.doi...........58fef0481df4055576cd0d57cc2c7e3d
Full Text :
https://doi.org/10.1055/s-2003-41977