Coper Classification Early After Anterior Cruciate Ligament Rupture Changes With Progressive Neuromuscular and Strength Training and Is Associated With 2-Year Success: The Delaware-Oslo ACL Cohort Study.

The American Journal of Sports Medicine
Louise ThomaLynn Snyder-Mackler

Abstract

Some athletes demonstrate excellent dynamic stability after anterior cruciate ligament (ACL) rupture and return to sport without ACL reconstruction (ACLR) (copers). Others demonstrate persistent instability despite rehabilitation (noncopers) and require surgical stabilization. Testing to determine coper classification can identify potential copers early after rupture. It is unclear how coper classification changes after a brief intervention and how early classification relates to long-term outcomes. (1) To evaluate the consistency of early coper classification (potential coper vs noncoper) before and after progressive neuromuscular and strength training (NMST) among athletes early after acute ACL rupture and (2) to evaluate the association of early coper classification with 2-year success after ACL rupture. Cohort study; Level of evidence, 2. This was a prospective analysis from the Delaware-Oslo ACL Cohort Study, composed of athletes consecutively enrolled early after ACL rupture. Participants (n = 271) were tested and classified as potential copers or noncopers according to established criteria before and after a 10-session NMST program. Success 2 years after ACLR or nonoperative rehabilitation was defined as meeting or excee...Continue Reading

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Citations

May 11, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Theresa DiermeierUNKNOWN Panther Symposium ACL Treatment Consensus Group
Jul 15, 2020·British Journal of Sports Medicine·Theresa Anita DiermeierUNKNOWN Panther Symposium ACL Treatment Consensus Group
Jul 9, 2020·Orthopaedic Journal of Sports Medicine·Theresa DiermeierKevin E Wilk
Dec 12, 2020·BMC Sports Science, Medicine and Rehabilitation·Ramana PiussiEric Hamrin Senorski
Mar 6, 2021·Physical Therapy in Sport : Official Journal of the Association of Chartered Physiotherapists in Sports Medicine·Andrew StrongCharlotte K Häger
May 18, 2021·The Journal of Bone and Joint Surgery. American Volume·Marie PedersenMay Arna Risberg
Jun 10, 2021·British Journal of Sports Medicine·Gilbert MoatsheLars Engebretsen
May 20, 2021·Journal of ISAKOS·Theresa DiermeierUNKNOWN Panther Symposium ACL Treatment Consensus Group
Jul 28, 2021·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Constance R Chu
Sep 21, 2021·Sportverletzung Sportschaden : Organ der Gesellschaft für Orthopädisch-Traumatologische Sportmedizin·Frank DiemerTobias Saueressig

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