Longitudinal Gait and Strength Changes Prior to and Following an Anterior Cruciate Ligament Rupture and Surgical Reconstruction: A Case Report

Anterior cruciate ligament injury alters preinjury lower extremity biomechanics in the injured and uninjured leg: the JUMP-ACL study

“…These results have important clinical implications, as this investigation provides the first evidence—other than case reports16 17—to describe how ACL injury and ACLR may increase the risk for recurrent ACL injury via increased medial displacement of the hip and knee 15 23. The altered movement patterns were consistent across our injured population despite not controlling for injury mechanism, graft type or rehabilitation protocol.…”

“…There is, however, no substantial evidence to demonstrate that ACL injury and ACLR induce these deleterious changes, as previous reports of biomechanical measures collected prior to and following ACL injury have been limited to case reports 16 17. Therefore, it is presently unknown if altered biomechanics following ACL injury and ACLR are the result of the injury and surgery, or if these alterations were present prior to injury and may have contributed to the initial injury.…”

A Longitudinal Case-Control Study of a Female Athlete Preinjury and After ACL Reconstruction: Hop Performance, Knee Muscle Strength, and Knee Landing Mechanics

“…These results corroborate previous findings showing that recovery differs across outcome measures from preinjury to post-ACLR. 5 - 8 …”

“…Few studies report anterior cruciate ligament (ACL) preinjury and repeated post-ACL reconstruction (ACLR) testing for functional performances and biomechanics. Case reports have presented pre- and post-ACL injury data for knee strength and gait mechanics, 5 and performances and joint mechanics during the star excursion test, hop for distance, and sidestep cutting. 6 - 8 These results suggest that regaining preinjury results differ between functional performances and knee biomechanics.…”

Evaluation of lower limb disability in joint hypermobility syndrome

“…In particular, LEFS resulted more reliable and valid than the Western Ontario and McMaster Universities Osteoarthritis index for evaluating disability in symptomatic osteoarthritis (OA) patients [8]. LEFS was successfully applied for determining improvement in lower limb function in patients who underwent anterior knee ligament reconstruction [9] and after a specific rehabilitation program in patients with patellofemoral pain syndrome [10]. Therefore, this questionnaire is a potentially useful tool for quantifying functional impairment in patients with other chronic rheumatologic disorders, such as JHS/EDS-HT.…”