Abstract
ObjectivesThe aim of this study was to compare the clinical and functional outcomes of three surgical techniques (subperiosteal suture, bone anchor and direct repair) for the management of severe acute ulnar collateral ligament injuries of the thumb metacarpophalangeal joint with a minimum of 1 year follow-up. Material and methodsBetween 2015 and 2020, 230 collateral ligament injuries required surgical treatment in our department. After the inclusion and exclusion criteria were applied, 100 were included in the study. The Glickel score and functional scores such as QuickDASH and PRWE were assessed. Time to return to work and to sport was quantified. ResultsUlnar collateral ligament injuries affected men who were statistically younger than women (41.8 years old vs 48.3). Subperiosteal suture was the preferred technique (81%), then bone anchor reattachment (12%) and direct repair (7%). All three techniques produced excellent stability (91–100%). Better range of motion was reported in the subperiosteal group, but better strength was found in the bone anchor group. Subperiosteal suture had 89% excellent and good results, while there was 83% in the bone anchor group and 71% in the direct repair group. Mean time to return to work was 2 months in the bone anchor group versus 3 months in the subperiosteal group. Mean QuickDASH was 8.7/100 and mean PRWE was 7.1/100. ConclusionThis is the biggest case series to date on surgical treatment of severe ulnar collateral ligament injuries of the thumb metacarpophalangeal joint. The subperiosteal technique is simpler and less expensive. While the results are not often described in the literature, it produces comparable clinical and functional outcomes to bone anchor reattachment with a minimum follow-up of 1 year.
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