Change in the collateral and accessory collateral ligament lengths of the proximal interphalangeal joint using cadaveric model three-dimensional laser scanning.
The purpose of this study was to assess the lengths of the index and middle finger proximal interphalangeal joint ligaments and determine the relative changes in the collateral and accessory collateral ligament lengths at 0°, 45° and 90° flexion. We generated three-dimensional scans of 16 finger (eight index and eight middle) proximal interphalangeal joints to assess relative changes in ligament length. Significant changes were found between 45°-90° and 0°-90° for the ulnar collateral ligament of the index finger and both collateral ligaments of the middle finger between 45°-90° and 0°-90°. No significant changes in length were found for the radial collateral ligament of the index finger or the accessory collateral ligaments of the index and middle fingers. Overall, it was found that the collateral ligament length changed significantly, but there was no significant change in the accessory collateral ligaments.


METHODS
Therapeutic IV.
School of Medicine and Biomedical Sciences, University of Sheffield, Sheffield, UK ssandhu1@sheffield.ac.uk.
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Sandhu
Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, ON, Canada.
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Dreckmann
Division of Plastic and Reconstructive Surgery, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.
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Binhammer
D000368:Aged; D000369:Aged, 80 and over; D002102:Cadaver; D017885:Collateral Ligaments / Q000502:physiology*; D005260:Female; D005384:Finger Joint / Q000502:physiology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D007834:Lasers; D008297:Male
Accessory collateral ligaments; collateral ligaments; ligament length; proximal interphalangeal joint; three-dimensional laser scanning