Technical Obstacles in Total Knee Arthroplasty Learning: A Steps Breakdown Evaluation.

Introduction: Total knee arthroplasty (TKA) is a common procedure practiced in both the community and academic setting and one that all orthopaedic surgery residents are expected to become competent in. The aim of this study is to determine the most common technical obstacles encountered during TKA learning.

Methods: This is a prospective, cohort observational study performed from September 2017 to April 2018.

The Usefulness of Meta-Analyses to Hip and Knee Surgeons.

Background: Comprehensive systematic reviews of results from homogenous or heterogeneous clinical trials, meta-analyses are used to summarize and to interpret studies. Proponents believe that their use can increase study power and improve precision results. Critics emphasize that heterogeneity between studies and bias of individual studies compromise the value of results.

Total knee arthroplasty in a patient with nail-patella syndrome (NPS).

Nail-patella syndrome (NPS) or hereditary onycho-osteodyaplasia is a rare genetic condition involving a mutation in the LMX1B gene affecting nails, elbows, knees, and pelvis. Due to the regulatory functions of the gene in many developmental processes through the body, patients with NPS experience wide-ranging musculoskeletal problems including patellar instability, fingernail anomalies, iliac exostoses/horns, and elbow abnormalities. The patellar changes often involve aplasia, hypoplasia, and chronic dislocation.