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Arthroscopically Assisted Ligamentoplasty for Axial and Dorsal Reconstruction of the Scapholunate Ligament.

ABSTRACT: Scapholunate (SL) ligament injury is among the most common injuries of the intrinsic ligaments of the carpus. Arthroscopic treatment in complete and nonacute injuries has had poor results. These cases have typically been treated using open surgical techniques that require a broad dorsal approach and produce soft tissue impairment, which leads to reduced wrist mobility. The development of wrist arthroscopy techniques has allowed the treatment of complete and nonacute injuries of the SL ligament, without the disadvantages of open surgery, respecting the soft tissues and avoiding injury of the posterior interosseous nerve, in an attempt to preserve the proprioception of the wrist and the secondary dorsal stabilizers. This arthroscopically assisted technique reconstructs the SL ligament using a tendon graft placed between the scaphoid and lunate and complemented by the reconstruction of the dorsal portion of the SL ligament, with the aim of creating an axial and dorsal tendinous ligamentoplasty between both bones.

SUBMITTER: Carratala V

PROVIDER: S-EPMC4947964 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:PurposeTreatment of subacute and chronic static scapholunate instability remains challenging. We aimed to determine 5- to 10-year outcomes of dorsal intercarpal ligament capsulodesis with scapholunate interosseous ligament repair for subacute and chronic static scapholunate instability.MethodsSix patients with subacute and chronic static scapholunate instability underwent dorsal intercarpal ligament capsulodesis with scapholunate interosseous ligament repair between 2011 and 2015, and 5 of them were followed for at least 5 years after surgery. The clinical and radiological results were retrospectively investigated. All patients were male, and the mean age at surgery was 37 years (range, 21-47 years). The mean period from injury to surgery was 26.2 months (range, 2-113 months). The surgical procedure was a modification of a method reported by Szabo et al.ResultsThe mean postoperative follow-up period was 8.1 years (range, 5.1-9.5 years). Median Disabilities of the Arm, Shoulder, and Hand and Mayo wrist scores improved from 23.3 to 1.7 and from 55 to 80, respectively, from before surgery to the final follow-up. Although the median flexion angle tended to be smaller, the median extension angle tended to be greater than before surgery. The median percent grip strength increased from 72.3% before surgery to 99.2% at the final follow-up. The median scapholunate gap improved from 4.2 mm before surgery to 2.1 mm at the final follow-up. The median scapholunate angle also improved from 95.7° before surgery to 71.3° at the final follow-up. Osteoarthritic changes were observed in 2 of 5 patients at the final follow-up.ConclusionsThe scapholunate gap in all patients was within the normal range after a mean of 8.1 years of follow-up. Dorsal intercarpal ligament capsulodesis with scapholunate interosseous ligament repair is considered a good alternative for subacute and chronic static scapholunate instability based on these 5- to 10-year outcomes.Type of study/level of evidenceTherapeutic IV.

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Arthroscopically Assisted Ligamentoplasty for Axial and Dorsal Reconstruction of the Scapholunate Ligament.

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