Abstract
Purpose The purpose of this study was to evaluate the outcomes of perilunate dislocations
and fracture-dislocations treated with arthroscopically assisted mini-invasive reduction
and fixation.
Methods Between June 2012 and May 2014, 24 patients who had a dorsal perilunate dislocation
or fracture-dislocation were treated with arthroscopically assisted reduction and
percutaneous fixation. The mean follow-up was 14.8 months (range 6–32 months).
Clinical outcomes were evaluated on the basis of range of motion; grip strength; Mayo
Wrist Score; Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) questionnaire;
and Patient-Rated Wrist Evaluation (PRWE) score. Radiographic evaluations included
time to scaphoid union, carpal alignments, and any development of arthritis.
Results The range of flexion-extension motion of the injured wrist averaged 86% of the values
for the contralateral wrist. The grip strength of the injured wrist averaged 83% of
the values for the contralateral wrists. The mean QuickDASH score was 6, and the mean
PRWE score was 10. According to the Mayo Wrist Scores, overall functional outcomes
were rated as excellent in 13 patients (54%), good in 6 (25%), fair in 4 (17%), and
poor in 1 (4%). Scaphoid nonunion developed in one patient. Reduction obtained during
the operation was maintained within normal ranges in all patients. Arthritis had not
developed in any patient at final follow-up.
Conclusions Arthroscopically assisted mini-invasive reduction with percutaneous fixation is a
reliable and favorable alternative in the treatment of perilunate injuries according
to our early follow-up results.
Level of Evidence: Level IV, Therapeutic.
Keywords
perilunate dislocation - scaphoid fracture - minimally invasive surgery - wrist arthroscopy
