How to Evaluate and Treat Skeletally Mature Patients With Patellar Dislocation

Abstract

Although patellar dislocation is a knee disorder prevalent in adolescence and young adults, the evaluation and treatment of patients are complex and even enigmatic. Much of the literature fails to provide a detailed description of patient management. The purpose of this study is to introduce a method for the evaluation and treatment of patellar dislocation. This Technical Note will help guide clinicians in the clinical evaluation of patients and formulation of treatment plans.

Patients With First-Time or Recurrent Patellar Dislocation Have a Similar High Rate and Extent of Articular Cartilage Injury Observed on Magnetic Resonance Imaging

“…Although the standard of care for first-time patellar dislocation is to obtain an MRI scan, recurrent dislocators may have not received an MRI scan initially and the question now becomes, Was the MRI scan conducted for articular cartilage damage concerns or preoperative imaging to guide surgery? 29 Further study is warranted to determine the biomechanics of cartilage injury between the intact and deficient medial patellofemoral ligament state, as well as between male and female patients.…”

Reliability of the Tibial Tubercle–Roman Arch Distance for Evaluating Tibial Tubercle Malposition and Predicting Patellar Dislocation via Magnetic Resonance Imaging

“…A TT-TG distance of at least 20 mm has been used widely as an indicator for TTO surgery. 5 , 7 , 21 , 31 , 34 However, the measurement of TT-TG distance has poor reproducibility in patients with trochlear dysplasia, especially in high-grade trochlear dysplasia. 6 , 12 , 14 Dejour et al 5 reported that 96% of patients with patellar dislocation had trochlear dysplasia.…”