Comparison of knee extensor strength after anterior cruciate ligament reconstruction using either quadriceps tendon or hamstring tendon autografts - Aix-Marseille Université Access content directly
Journal Articles European Journal of Orthopaedic Surgery & Traumatology Year : 2022

Comparison of knee extensor strength after anterior cruciate ligament reconstruction using either quadriceps tendon or hamstring tendon autografts

Abstract

Purpose The aim was to assess the consequences of quadriceps tendon (QT) harvest on knee extensor strength after anterior cruciate ligament reconstruction (ACL-R) compared to hamstring tendon (HT) autograft. Secondary objectives were to evaluate flexor strength recovery and search for correlation between strength status and functional outcome. Methods This a retrospective cohort of 44 patients who underwent ACL-R using either QT (25) or HT (19). Median age was 31.1 years. We assessed thigh muscle strength thanks to concentric iso kinetic evaluation (peak torque) at 60 degrees.s(-1), 180 degrees.s(-1), 240 degrees.s(-1) and eccentric at 30 degrees.s(-1), 7 months on average after surgery. Muscle strength values were compared to the uninjured leg in order to calculate a percentage of deficit as well as unilateral hamstring/quadriceps (H/Q) ratios. KOOS score was obtained at a mean follow-up of 18 months. Results Extensor strength deficit (concentric 60 degrees.s(-1)) was one average 33.1% in the QT group and 28.2% in the HT group (p = 0.42). Difference of flexor strength deficit (concentric 60 degrees.s(-1)) was close to be significant with 5% and 12% of deficit in the QT and HT group, respectively (p = 0.1), and statistically significant for high angular velocity (14% versus 3% at 240 degrees.s(-1), p = 0.04). H/Q ratios were comparable in both groups ranging from 0.62 to 0.78. Quadriceps muscle strength deficit was negatively correlated with the KOOS score (Pearson coefficient = -0.4; p = 0.005). Conclusion QT autograft harvest does not yield significant quadriceps muscle weakness after ACL-R, which appear to be a pejorative factor for functional outcome.
Fichier principal
Vignette du fichier
s00590-021-03062-5_VF.pdf (493.68 Ko) Télécharger le fichier

Dates and versions

hal-03991645 , version 1 (09-03-2023)

Identifiers

Cite

C. Horteur, B. Rubens Duval, A. Merlin, J. Cognault, M. Ollivier, et al.. Comparison of knee extensor strength after anterior cruciate ligament reconstruction using either quadriceps tendon or hamstring tendon autografts. European Journal of Orthopaedic Surgery & Traumatology, 2022, 32 (5), pp.857-865. ⟨10.1007/s00590-021-03062-5⟩. ⟨hal-03991645⟩
635 View
146 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More