PURPOSE: To perform a systematic review to determine if there is (1) an association between decreased hip internal rotation and anterior cruciate ligament (ACL) tear rates; (2) an association between radiographic femoroacetabular impingement (FAI) and ACL tear rates; and (3) biomechanical evidence demonstrating increased strain in the ACL of patients with decreased hip internal rotation. METHODS: A systematic review was performed using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Studies investigating relationships between hip motion, hip radiographs, and ACL tear were sought. Studies with Levels of evidence I-IV were eligible for inclusion. Study methodology/evidence were evaluated using Methodological Index for Non-Randomized Studies (MINORS), Strengthening the Reporting of Observational Studies in Epidemiology (STROBE), and Grading of Recommendations Assessment, Development, and Evaluation (GRADE) criteria. RESULTS: Eleven studies were analyzed (2 cadaveric in vitro models, 8 clinical studies measuring hip internal rotation (2 concurrently assessing radiographic FAI), and 1 clinical study assessing radiographic FAI alone). Mean MINORS, STROBE, and GRADE for the studies was 82.4%, 20.9 out of 22, and "low," respectively. A total of 959 subjects (84.8% male; mean age 23.6 ± 3.8 years) were analyzed. Overall, 378 subjects sustained 427 ACL tears (399 primary ACL ruptures, 28 reruptures). Six of 8 clinical studies identified a significant association between limited rotation (internal rotation [IR; loss greater than 10°-20°], external rotation [ER], or combined IR + ER [loss greater than 20°]) and ACL tears. Two studies found an association between ACL ruptures and radiographic cam/pincer impingement. Two cadaveric models found a significant association between ACL strain and limited hip internal rotation. CONCLUSIONS: This systematic review identified a significant association between ACL tear and both limited hip rotation and radiographic FAI. LEVEL OF EVIDENCE: Level IV, systematic review of Levels II-IV studies.
PURPOSE: To perform a systematic review to determine if there is (1) an association between decreased hip internal rotation and anterior cruciate ligament (ACL) tear rates; (2) an association between radiographic femoroacetabular impingement (FAI) and ACL tear rates; and (3) biomechanical evidence demonstrating increased strain in the ACL of patients with decreased hip internal rotation. METHODS: A systematic review was performed using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Studies investigating relationships between hip motion, hip radiographs, and ACL tear were sought. Studies with Levels of evidence I-IV were eligible for inclusion. Study methodology/evidence were evaluated using Methodological Index for Non-Randomized Studies (MINORS), Strengthening the Reporting of Observational Studies in Epidemiology (STROBE), and Grading of Recommendations Assessment, Development, and Evaluation (GRADE) criteria. RESULTS: Eleven studies were analyzed (2 cadaveric in vitro models, 8 clinical studies measuring hip internal rotation (2 concurrently assessing radiographic FAI), and 1 clinical study assessing radiographic FAI alone). Mean MINORS, STROBE, and GRADE for the studies was 82.4%, 20.9 out of 22, and "low," respectively. A total of 959 subjects (84.8% male; mean age 23.6 ± 3.8 years) were analyzed. Overall, 378 subjects sustained 427 ACL tears (399 primary ACL ruptures, 28 reruptures). Six of 8 clinical studies identified a significant association between limited rotation (internal rotation [IR; loss greater than 10°-20°], external rotation [ER], or combined IR + ER [loss greater than 20°]) and ACL tears. Two studies found an association between ACL ruptures and radiographic cam/pincer impingement. Two cadaveric models found a significant association between ACL strain and limited hip internal rotation. CONCLUSIONS: This systematic review identified a significant association between ACL tear and both limited hip rotation and radiographic FAI. LEVEL OF EVIDENCE: Level IV, systematic review of Levels II-IV studies.
Authors: Darren de Sa; Jayson Lian; Andrew J Sheean; Kathleen Inman; Nicholas Drain; Olufemi Ayeni; Craig Mauro Journal: Orthop J Sports Med Date: 2018-09-21
Authors: Dean Wang; Leigh J Weiss; Madeline Abrams; Ronnie P Barnes; Russell F Warren; Scott A Rodeo; Samuel A Taylor Journal: Orthop J Sports Med Date: 2018-12-12
Authors: Joshua D Harris; Richard C Mather; Shane J Nho; John P Salvo; Allston J Stubbs; Geoffrey S Van Thiel; Andrew B Wolff; John J Christoforetti; Thomas J Ellis; Dean K Matsuda; Benjamin R Kivlan; Dominic S Carreira Journal: J Hip Preserv Surg Date: 2019-12-12
Authors: Jesús Olivares-Jabalera; Alberto Fílter-Ruger; Thomas Dos'Santos; Jose Afonso; Francesco Della Villa; Jaime Morente-Sánchez; Víctor Manuel Soto-Hermoso; Bernardo Requena Journal: Int J Environ Res Public Health Date: 2021-12-18 Impact factor: 3.390