Correlation among Knee Muscle Strength and Self-Reported Outcomes Score, Anterior Tibial Displacement, and Time Post-Injury in Non-Coper Anterior Cruciate Ligament Deficient Patients: A Cross-Sectional Study

Ignacio Manchado, David Alvarez, Luci M. Motta, Gustavo Blanco, Pedro Saavedra and Gerardo L. Garcés
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Ignacio Manchado: Hospital Perpetuo Socorro, 35007 Las Palmas, Spain
David Alvarez: Terapias Acuáticas Canarias, 35011 Las Palmas, Spain
Luci M. Motta: Hospital Perpetuo Socorro, 35007 Las Palmas, Spain
Gustavo Blanco: Hospital Perpetuo Socorro, 35007 Las Palmas, Spain
Pedro Saavedra: Mathematics Department, University of Las Palmas de Gran Canaria, 35017 Las Palmas, Spain
Gerardo L. Garcés: Hospital Perpetuo Socorro, 35007 Las Palmas, Spain

IJERPH, 2021, vol. 18, issue 24, 1-14

Abstract: Little attention has been paid to knee muscle strength after ACL rupture and its effect on prognostic outcomes and treatment decisions. We studied hamstrings (H) and quadriceps (Q) strength correlation with a patient-reported outcome measures score (International Knee Documentation Committee, IKDC), anterior tibial translation (ATT), and time post-injury in 194 anterior cruciate ligament deficient patients (ACLD) who required surgery after a failed rehabilitation program (non-copers). The correlation between knee muscle strength and ATT was also studied in 53 non-injured controls. ACLD patients showed decreased knee muscle strength of both the injured and non-injured limbs. The median (interquartile range) values of the H/Q ratio were 0.61 (0.52–0.81) for patients’ injured side and 0.65 (0.57–0.8) for the non-injured side ( p = 0.010). The median H/Q ratio for the controls was 0.52 (0.45–0.66) on both knees ( p < 0.001, compared with the non-injured side of patients). The H/Q, ATT, and time post-injury were not significantly correlated with the IKDC score. ATT was significantly correlated with the H/Q of the injured and non-injured knees of patients, but not in the knees of the controls. Quadriceps strength and H/Q ratio were significantly correlated with ATT for both limbs of the patients. IKDC score correlated significantly with the quadriceps and hamstrings strengths of the injured limb but not with the H/Q ratio, ATT or time passed after injury.

Keywords: anterior cruciate ligament; non-copers; hamstring/quadriceps ratio; International Knee Documentation Committee score (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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