Arthroscopic Dorsal Scaphotriquetral Ligamentoplasty for Dynamic SL and LT Instability

The present study describes an all arthroscopic dorsal scaphotriquetral ligamentoplasty that can be implicated separately or simultaneously for SL and LT injuries with dynamic instabiilty as a single procedure, and the short-term results of it.

SL injuries and LT injuries were diagnosed by arthroscopy and the procedure was performed in EWAS grade 2-3 instability. From April 2020 to December 2022, this procedure was conducted in 152 patients and follow-up was performed over 3, 6 months, and 1 year after surgery. Range of motion, grip strength, VAS score, modified Mayo wrist score, quick DASH were compared before and after surgery.

89 male, 63 female (mean age: 29.8) were included. 117 SL injuries, 22 LT injuries, 13 combined injuries were observed. Mean VAS score improved from 7.4 preoperatively to 1.1. and the final follow-up. Mean grip strength improved from 28.6kg to 39.5kg. Mean modified Mayo score improved from 48 to 87 at the final follow-up.

With the encouraging short-term outcomes, arthroscopic dorsal scaphotriquetral ligamentoplasty might be an effective surgical technique in improving functional outcomes and reducing pain in patients with SLIL, LTIL, and combined injuries with dynamic instability.