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J Wrist Surg 2023; 12(05): 433-438
DOI: 10.1055/s-0043-1764159
Scientific Article

Radiologic Evolution after Scapholunate Dorsal Capsulodesis for Chronic Tears

François Borrel 
1   Bizet Clinic, Hand Institute, Paris, France
,
Mathilde Gras
1   Bizet Clinic, Hand Institute, Paris, France
,
Ahlam Arnaout
1   Bizet Clinic, Hand Institute, Paris, France
,
Christophe Mathoulin
1   Bizet Clinic, Hand Institute, Paris, France
,
Lorenzo Merlini
1   Bizet Clinic, Hand Institute, Paris, France
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Abstract

Background Many debates are still ongoing for the management of chronic scapholunate (SL) injuries. We have proposed an arthroscopic technique of dorsal capsulodesis with good clinical results. We now propose a radiological follow-up.

Purpose To determine if arthroscopic dorsal capsulodesis can improve the radiographic SL angle and maintain this correction over time.

Methods From January 2020 to January 2021, we included every patient with an SL instability and sorted them according to the European Wrist Arthroscopy Society (EWAS) classification. All patients had bilateral X-rays with a measurement of the radiolunate (RL) and SL angles for both the pathologic and healthy side. We also included patients with lunotriquetral or triangular fibrocartilage complex lesions. The exclusion criteria were the presence of arthritis and persistent intraoperative SL instability after capsulodesis. An arthroscopic dorsal capsulodesis was performed in all patients as originally described by Mathoulin. The RL and SL angles were then again measured on the immediate postoperative X-ray, and then again at 3, 6, and 12 months postoperatively. The statistical analysis was done using a paired Student's t-test with 145 degrees of freedom and α = 0.05.

Results We included a total of 146 patients with a 1-year follow-up. Both the RL angle and the SL angles approach the healthy side at 12 months postoperatively. The RL angle has increased from −7.23 degrees to 4.37 degrees; the difference is still statistically significative, but it is almost equal to the healthy side (5.16 degrees). The SL angle has lowered from 74.55 to 54.95; the difference is still statistically and radiologically significative (6.788 degrees) but has been lowered by 74.3%.

Conclusion This study shows that this technique can normalize the dorsal intercalated segment instability (DISI) over time without the need for any pinning or invasive ligament reconstructive surgery.

Level of Evidence Level IV, cohort study.

Clinical Relevance Dorsal capsulodesis should be considered in all reducible SL injuries, even when DISI is present.

Keywords

scapholunate interosseous ligament - wrist arthroscopy - SLAC - DISI - dorsal - capsulodesis


Publication History

Received: 29 July 2022

Accepted: 24 January 2023

Article published online:
28 February 2023

© 2023. Thieme. All rights reserved.

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