Increased risk for early revision with quadriceps graft compared with patellar tendon graft in primary ACL reconstructions

Author:

Zegzdryn Marek1ORCID,Moatshe Gilbert234,Engebretsen Lars34,Drogset Jon Olav56,Lygre Stein Håkon Låstad67,Visnes Håvard368,Persson Andreas236

Affiliation:

1. Orthopaedic Department Sørlandet Hospital Arendal Arendal Norway

2. Orthopaedic Surgery Clinic Oslo University Hospital Ullevål Oslo Norway

3. Oslo Sport Trauma Research Center Norwegian School of Sport Sciences Oslo Norway

4. Orthopeadic Division University of Oslo Oslo Norway

5. Orthopaedic Surgery Trondheim University Hospital Trondheim Norway

6. Norwegian Knee Ligament Register, Orthopaedic Surgery Haukeland University Hospital Bergen Norway

7. Occupational Medicine Haukeland University Hospital Bergen Norway

8. Orthopeadic Department Sørlandet Hospital Kristiansand Kristiansand Norway

Abstract

AbstractPurposeBone patella‐tendon bone (BPTB) and hamstring tendon (HT) autografts are the most used grafts in primary anterior cruciate ligament (ACL) reconstructions (ACLR) in Norway. Quadriceps tendon (QT) autograft has gained more popularity during the past years. The purpose of this study is to compare revision rates and patient‐reported outcomes of primary QT with BPTB and HT autograft ACL reconstructions in Norway at 2‐year follow‐up. It was hypothesized that there would be no difference in 2‐year revision rates between all three autografts.MethodsData included primary ACLR without concomitant ligament surgeries, registered in the Norwegian Knee Ligament Register from 2004 through 2021. Revision rates at 2 years were calculated using Kaplan–Meier analysis. Hazard ratios (HR) for revision were estimated using multivariable Cox regression analysis with revision within 2 years as endpoint. Mean change in patient‐reported outcome was recorded preoperatively and at 2 years through the Knee Injury and Osteoarthritis Outcome Score (KOOS) subcategories ‘Sport’ and ‘Quality of Life’ was measured for patients that were not revised and analysed with multiple linear regression.ResultsA total of 24,790 primary ACLRs were identified, 10,924 with BPTB, 13,263 with HT and 603 with a QT graft. Patients in the QT group were younger (23.5 years), more of them were women (58.2%) and over 50% had surgery <3 months after injury. The QT group had the highest prevalence of meniscal injuries (61.9%). Revision estimates at 2‐years were 3.6%, 2.5% and 1.2% for QT, HT and BPTB, respectively (p < 0.001). In a Cox regression analysis with QT as reference, BPTB had a lower risk of revision (HR 0.4, 95% Cl 0.2–0.7, p < 0.001). No significant difference was observed in the revision risk between QT and HT (HR 1.1, 95% Cl 0.7–1.8, n.s.). The two most common reported reasons for revision were: traumatic graft rupture and nontraumatic graft failure. There were no differences between the groups in change of KOOS in subcategories ‘Sport’ and ‘Quality of Life’ at 2‐years follow‐up.ConclusionThe 2‐year risk of revision after ACLR with QT was higher than BPTB and similar to HT. No difference was found between the groups in patient‐reported outcomes. This study provides valuable insights for both surgeons and patients when making decisions about the choice of autografts in primary ACL reconstructions.Level of Evidence: Level II.

Publisher

Wiley

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