Hamstring weakness at 90° flexion of involved knee as an indicator of the function deficit in males after anterior cruciate ligament reconstruction (ACLR)

Abstract

Purpose: The aim of this study was to elucidate predictors on knee function following anterior cruciate ligament reconstruction with hamstring tendon graft or allograft and to detect the differences between it and the healthy controls. Methods: This study comprised of 46 males, aged 18–45, being within 6–60 months following unilateral anterior cruciate ligament reconstruction and 50 healthy men. Measurements included the Tampa Scale for Kinesiophobia-17, the self-reported knee function with the Knee Injury and Osteoarthritis Outcome Score, Tegner activity scale and handheld dynamometry the hamstring/quadriceps femoris muscle testing at 90° of flexion. Regression analyses were performed to predict the knee function in the anterior cruciate ligament reconstruction group. Results: The anterior cruciate ligament reconstruction group showed significantly lower Tegner activity and hamstring/quadriceps femoris strength, higher kinesiophobia and worse Knee Injury and Osteoarthritis Outcome Score (p < 0.05). Their Knee Injury and Osteoarthritis Outcome Score-Sport/Recrection, Quality of Life and –Total values were modestly associated with the satisfaction with prior rehabilitation, activity level, graft type, kinesiophobia, time since the reconstruction and hamstring strength (p < 0.05). The hamstring strength was the only important predictor of the Knee Injury and Osteoarthritis Outcome Score-Total (p < 0.01). The involved knee handheld dynamometrymass normalize-hamstring strength at 90° of flexion predicted 20.5% of the variance in the knee function. Conclusions: Presence of a decreased handheld dynamometry-mass normalized-hamstring strength result at hyper-flexion after anterior cruciate ligament reconstruction in men may indicate self-reported knee function disorder

Relationship between lower limb muscle strength and kinesiophobia with functional stability and knee function in anterior cruciate ligament reconstruction patients: a literature review

“…24 There is also a decrease in knee flexion muscle strength, which can cause functional limitations, especially in daily activities and sports that demand an increase in knee flexion muscle contraction. 12 In post-ACL reconstruction patients, quadriceps strength LSI correlates more strongly with future knee function and activity levels than hamstring strength LSI. Isotonic and isokinetic hamstring power LSI is also highly related to the Lysholm score, which evaluates knee function.…”

“…11 In addition, decreased knee flexion strength in the hamstring muscles can also cause functional limitations, especially in daily activities or sports requiring increased knee flexion. 12 ACL damage directly causes a loss of plantar flexion strength in the gastrocnemius muscle linked to the knee joint. 13 Weakness in the gluteus maximus increases the risk of ACL damage because the capacity to resist internal rotation of the tibia is compromised.…”

Ultrasonographic Identification of Muscle Atrophy in Hamstring Muscles after Anterior Cruciate Ligament Repair among Soccer Players: A Case-control Study

“…Another retrospective cohort study carried out by Horteur et al [19], pointed out that the utilization of HST grafts results in a decrease their contractile capacity as the diminishment observed the quadricipital musculature. Besides, Balki et al [20] also linked a reduction in HST motor strength following ACL reconstruction with a less favorable prognosis in terms of knee functional recovery.…”

Hubungan Fungsi Lutut Dan Tipe Graft Terhadap Fungsi Pergelangan Kaki Dan Keseimbangan Dinamis Pasca Operasi Anterior Cruciate Ligament Reconstruction

“…20 Another study also reported that hamstring strength deficits were found in the HT group during knee extension. 21 This occurs due to the retrieval of quadriceps and hamstring tendons, causing functional limitations in the movement of post-ACLR patients.…”