The Association Between Delaying Anterior Cruciate Ligament Reconstruction in Adolescents and Increasing Meniscal and Chondral Pathology: A Cohort Study of 2740 Adolescents.

Background: A growing body of evidence surrounds secondary meniscal and cartilage pathology after delay to anterior cruciate ligament (ACL) reconstruction (ACLR). Many of these studies focus on or include an adult population.

Purpose: To elucidate the prevalence of secondary meniscal and chondral pathology with delay to ACLR in the adolescent population as well as examine the influence of sex, skeletal maturity, and trends over the years.

Long-term outcomes of revision total hip arthroplasty with the Zimmer Modular Revision hip system.

Aims: There are limited long-term studies reporting on outcomes of the Zimmer Modular Revision (ZMR) stem, and concerns remain regarding failure. Our primary aim was to determine long-term survival free from all-cause revision and stem-related failure for this modular revision stem in revision total hip arthroplasty (THA). Secondary aims included evaluating radiological and functional outcomes.