Arthrodesis of the Proximal Interphalangeal Joint of the Finger-A Biomechanical Study of Primary Stability

Osteoarthritis of the proximal interphalangeal (PIP) joint of the finger often leads to global hand-function detriment. Different techniques for the arthrodesis of the proximal interphalangeal joint have been described that all lead to union in a reasonable percentage of patients and period of time....

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Bibliographic Details
Published in:Journal of personalized medicine 2023-03, Vol.13 (3), p.465
Main Authors: Millrose, Michael, Vonderlind, Hans Christoph, Thannheimer, Andreas, Ittermann, Till, Rüther, Johannes, Willauschus, Maximilian, Bail, Hermann-Josef, Eisenschenk, Andreas
Format: Article
Language:English
Subjects:
Activities of daily living
Analysis
Arthritis
Arthrodesis
Bending stresses
Biomechanics
Compression
Immobilization
Osteoarthritis
Precision medicine
Statistical analysis
Surgical techniques
Transplants & implants
Wire
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Summary:Osteoarthritis of the proximal interphalangeal (PIP) joint of the finger often leads to global hand-function detriment. Different techniques for the arthrodesis of the proximal interphalangeal joint have been described that all lead to union in a reasonable percentage of patients and period of time. This biomechanical study aims to analyze and compare the primary stability of different techniques of arthrodesis to render postoperative immobilization unnecessary. Arthrodeses of 40° of composite cylinders were tested with different techniques in four-point bending for stability in extension as well as flexion. In extension, the compression screw and the compression wires showed the highest stability-whereas in flexion, plate fusion was superior. Tension band, cerclage or compression screw fusion showed the best compromise in flexion/extension stability. Fusion techniques that apply compression to the fusion show superior stability. Cerclage, tension band and compression screws might be able to provide enough stability to withstand the forces exerted during unencumbered activities of daily living. Arthrodesis with plates should be limited to patients with special indications and require immobilization during consolidation.
ISSN:2075-4426
2075-4426
DOI:10.3390/jpm13030465