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- Title
Enlightenment on Knee Flexors Strength Loss in Cases of Posterior Knee Pain After Anterior Cruciate Ligament Reconstruction.
- Authors
Dauty, Marc; Louguet, Bastien; Menu, Pierre; Grondin, Jérôme; Crenn, Vincent; Daley, Pauline; Fouasson-Chailloux, Alban
- Abstract
Context: The persistence and the recurrence of posterior medial knee pain (PKP) after anterior cruciate ligament reconstruction (ACLR) using hamstring tendon graft are often overlooked during rehabilitation. Design: Cross-sectional observational study. Methods: The study aimed (1) to evaluate the prevalence of these types of PKP before 4 months post-ACLR, (2) to measure their consequences on the knee flexors strength, and (3) to evaluate the role of the type of ACLR. From a cohort of patients operated on with hamstring tendon procedures, the persistent and the recurrent PKP were sought at 4 months post-ACLR. The evolution of isokinetic muscle strength recovery in PKP subjects was compared with those of nonpainful subjects. The functional deficit was measured at 6/7 months post-ACLR by a hop test. Results: Three hundred seventeen subjects (25.8 [6.0] y) were included. At 4 months post-ACLR, 2 populations were identified based on the recurrent onset of PKP (PKP+, n = 40) or the absence of knee pain (PKP−, n = 277). The prevalence of PKP was 8.3%. At the fourth month post-ACLR, the PKP+ group had a higher flexor strength deficit compared with the PKP− group (limb symmetry index at 60°/s: 67.2% [12.4%] vs 84.3% [12.6%]; P <.05). At 6/7 months, the loss of strength persisted (limb symmetry index at 60°/s: 82.3% [13.4%] vs 87.7% [12.8%]; P <.05). The hop test deficit was comparable, and no difference was shown according to the type of graft. Conclusions: Persistent and recurrent PKP during the rehabilitation period were not uncommon and were associated with a worsening of flexors strength loss on the ACLR side.
- Subjects
KNEE physiology; KNEE pain; CROSS-sectional method; PEARSON correlation (Statistics); ANTERIOR cruciate ligament surgery; AUTOGRAFTS; HAMSTRING muscle; MULTIPLE regression analysis; FUNCTIONAL status; DESCRIPTIVE statistics; MUSCLE strength; EXPERIMENTAL design; COMPARATIVE studies; BODY movement; DATA analysis software; CONFIDENCE intervals; ISOKINETIC exercise; REHABILITATION
- Publication
Journal of Sport Rehabilitation, 2024, Vol 33, Issue 5, p317
- ISSN
1056-6716
- Publication type
Article
- DOI
10.1123/jsr.2023-0346