Analysis of wrist motion following vascularized bone graft to the proximal scaphoid
Christopher L Hankins1, Jeffrey Evan Budoff
1Department of Orthopaedic Surgery, University of Texas Health Science Center–Houston, Houston, TX, USA.
Purpose:
To determine whether there is any motion loss associated with the 1,2 intracompartmental supraretinacular artery (ICSRA) bone graft to the dorsal scaphoid. The null hypothesis is that placement of a vascularized bone graft in the dorsal scaphoid does not lead to a significant change in range of motion.
Methods:
Seven fresh-frozen cadaveric upper extremities were examined. Simulated 1,2 ICSRA bone grafts were harvested and placed into a dorsal trough made in the proximal scaphoid. Wrist motion measurements were performed before and after 1,2 ICSRA bone graft implantation.
Results:
There were no significant changes in wrist motion following 1,2 ICSRA bone graft implantation.
Conclusions:
Properly placed 1,2 ICSRA vascularized bone grafts for treatment of proximal scaphoid nonunions do not by themselves cause loss of wrist motion.
Clinical Relevance:
Loss of motion following the treatment of proximal scaphoid nonunions with properly placed 1,2 ICSRA vascularized bone grafts are due to factors other than the bone graft itself.
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