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Graft Choice for Anterior Cruciate Ligament Reconstruction With a Concomitant Non-surgically Treated Medial Collateral Ligament Injury Does Not Influence the Risk of Revision.

Journal article
Authors Eleonor Svantesson
Eric Hamrin Senorski
Matilda Östergaard
Alberto Grassi
Ferid Krupic
Olof Westin
Kristian Samuelsson
Published in Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association
ISSN 1526-3231
Publication year 2019
Published at Institute of Neuroscience and Physiology, Department of Health and Rehabilitation
Institute of Clinical Sciences, Department of Orthopaedics
Language en
Links dx.doi.org/10.1016/j.arthro.2019.07...
www.ncbi.nlm.nih.gov/entrez/query.f...
Subject categories Orthopedics

Abstract

To compare the risk of anterior cruciate ligament (ACL) revision and the patient-reported outcome after ACL reconstruction with a concomitant non-surgically treated medial collateral ligament (MCL) injury with regard to 3 ACL graft choices; the use of semitendinosus (ST), the use of semitendinosus-gracilis (ST-G), and the use of patellar tendon (PT) autograft. It was hypothesized that the use of ST-G would be associated with a greater risk of ACL revision and poorer patient-reported knee function.Patients older than 15 years of age registered for a primary ACL reconstruction with a concomitant non-surgically treated MCL injury in the Swedish National Knee Ligament Registry were assessed for eligibility. Three groups were created according to ACL autograft choice; the ST, the ST-G, and the PT group. The primary outcomes were ACL revision and the 1- and 2-year Knee injury and Osteoarthritis Outcome Score (KOOS), including the KOOS patient acceptable symptom state (PASS). Cox regression analysis was applied to determine the proportional hazard ratio (HR) of primary ACL reconstruction survival. The KOOS was compared using the Mann-Whitney U test and Fisher exact test.A total of 622 patients (mean age 29.7 years, 42.4% women) were included. There was no difference in the risk of ACL revision for either the ST group (HR 1.354; 95% confidence interval [CI] 0.678-2.702 or the PT group (HR 0.837; 95% CI 0.334-2.100), compared with the ST-G group. The ST group reported a greater mean 2-year KOOS sports and recreation (68.5, standard deviation [SD] 28.5) than the ST-G group (57.4 [SD 27.6], P = .010) and the PT group (54.1 [SD 30.3], P = .006). The ST group was superior in terms of achieving PASS in sports and recreation (55.3%; 95% CI 44.1-66.1%) compared with both the ST-G (37.4%; 95% CI 29.8-45.5%; P = .014) and the PT group (33.9%; 95% CI 22.1-47.4%; P = .009).The risk of ACL revision did not differ between HT and PT autografts in patients undergoing ACL reconstruction with a non-surgically treated MCL injury. However, the use of ST-G was associated with poorer 2-year patient-reported knee function compared with the ST.Retrospective comparative trial, Level III.

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