Radioulnares impingement nach resektion der distalen ulna und ulnakopfhemiresektions-interpositionsarthroplastik nach Bowers - Eine experimentelle biomechanische studie

Translated title of the contribution: Radioulnar impingement after distal ulnar resection and ulnar head hemiresection interposition arthroplasty (Bowers procedure) - An experimental biomechanical study

Michael Sauerbier, M. Fujita, M. E. Hahn, P. G. Neale, K. N. An, R. A. Berger

Research output: Contribution to journalArticle

9 Scopus citations

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.

Translated title of the contributionRadioulnar impingement after distal ulnar resection and ulnar head hemiresection interposition arthroplasty (Bowers procedure) - An experimental biomechanical study
Original languageGerman
Pages (from-to)138-146
Number of pages9
JournalHandchirurgie Mikrochirurgie Plastische Chirurgie
Volume35
Issue number3
DOIs
StatePublished - May 1 2003

Keywords

  • Darrach operation
  • Distal radioulnar joint (DRUJ)
  • Radioulnar impingement
  • Ulnar head hemiresection-interposition arthroplasty (Bowers operation)

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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