4th Department of Internal Medicine and Institute of Medical Biochemistry and Laboratory Diagnostics, General Faculty Hospital and 1st Faculty of Medicine, Charles University, Prague, Czech Republic.
In this report, we present a case of acute patellar dislocation with both vertical and longitudinal rotation of the patella. As a result of rotation in the longitudinal axis, the articular surface of ...
This case shows how similar cases may be treated with an open reduction to properly address the patellar dislocation....
Recurrent patellar dislocation (RPD) is a multifactorial disease that affects young and active people. Patellar height measurements are used clinically to screen and diagnose knee conditions. However,...
Altogether, 133 patients (52 patients with RPD [Group R] and 81 sex- and age-matched controls [Group C]) were enrolled in this study. The Insall-Salvati (IS), Blackburne-Peel (BP), Caton-Deschamps (CD...
Patient demographics were similar between the two groups. The inter-observer and intra-observer reliabilities were good for all four methods. In patients with RPD, the mean index values for the four m...
Patellar height indices had high predictive performance for the incidence of RPD. The mIS method had the highest AUC....
There is little consensus on the conservative management of lateral patellar dislocations (LPD). Mechanical diagnosis and therapy (MDT) is an established classification system in the spinal and extrem...
The patient was a 20-year-old female with a 3-month history of left knee pain precipitated by a lateral patellar dislocation. The patient described pain and a feeling of instability with standing and ...
The patient's knee examination and subsequent intervention included her responses to repeated end range knee movements. Her knee pain was abolished, and strength, function, and motion were fully resto...
There are various management strategies for lateral patellar dislocation. This case demonstrated the use of classifying, subgrouping, and treating a patient with lateral patellar dislocation using the...
The patient's outcomes suggest that MDT may be used in the nonoperative management of people with LPD who present with a DP....
Patellar dislocations in flexion, which occurs permanently with every movement, is the most serious manifestation of patellofemoral malalignment. Surgical approaches to correct this problem have been ...
The purpose of this study was to investigate whether the vastus medialis oblique (VMO) muscle compensates in patellar dislocation (PD) patients with the increased femoral anteversion angle (FAA)....
Between 2021 and 2024, we included 60 patients with recurrent PD (RPD group). Inclusion criteria were at least two episodes of PD, as well as complete CT scans of the knee and hip. Exclusion criteria ...
The RPD group had a significantly larger FAA (15.0 ± 1.9° vs. 30.1 ± 9.6°, P = 0.040) and a smaller VMO/VLM ratio (4.2 ± 1.5 vs. 3.5 ± 1.0, P = 0.014) compared to the C group. Within the RPD group, th...
Patients with recurrent PD showed a smaller VMO/VLM ratio compared to controls. Increased FAA was correlated with compensatory thickening of the VMO and a higher VMO/VLM ratio in PD patients. This sug...
Level III....
The purpose of the study was to summarize the available evidence and identify risk factors for osteochondral injuries (OCIs) after patellar dislocations....
A systematic literature review was conducted in PubMed, Embase, Web of Science, Cochrane Library, and China national knowledge infrastructure from inception to December 22, 2022, according to the pref...
A total of 16 studies with 1945 patients were included. The risk factors for OCIs after patellar dislocation were categorized into four main categories, including demographic characteristics, patellar...
Based on the available evidence, an increased risk of OCIs following patellar dislocation may be associated with male sex and skeletal maturation. Furthermore, normal femoral trochlea and complete MPF...
Level IV, systematic review of Level II and IV studies....
Adolescents who experience a patellar dislocation have an elevated risk of patellofemoral posttraumatic osteoarthritis. Magnetic resonance imaging (MRI)-based T1ρ relaxation times were measured for ad...
The primary hypothesis is that patellofemoral cartilage T1ρ relaxation times will be elevated in the acute phase after patellar dislocation. The secondary hypothesis is that T1ρ relaxation times will ...
Cross-sectional study; Level of evidence, 3....
In total, 23 adolescents being treated for a recent patellar dislocation, 13 for a first-time dislocation (47 ± 38 days since most recent dislocation) and 10 for multiple dislocations (55 ± 24 days si...
T1ρ relaxation times were significantly longer for injured knees (single and multiple dislocations) than controls at the medial and central patella and central trochlear groove. For the regions on the...
Elevated patellofemoral cartilage T1ρ relaxation times are consistent with a high risk of long-term patellofemoral osteoarthritis for adolescents who experience patellar dislocations. T1ρ relaxation t...
Recurrent patellar dislocation is a debilitating musculoskeletal condition, affecting mainly adolescents and adults under the age of 30. It can persist for many decades, causing pain and cartilage and...
Recurrent Patellar Dislocation: Personalised Therapy or Operative Treatment (REPPORT) is a pragmatic, multicentre, two-arm, superiority, randomised controlled trial. It will compare the clinical and c...
The trial was approved by the East Midlands-Nottingham 2 Research Ethics Committee on 30 March 2023.Results will be disseminated via peer-reviewed publications, presentations at national and internati...
ISRCTN17972668....
Recurrent lateral patellar dislocation (RLPD) poses a significant threat to patients' quality of life due to knee pain, patellofemoral cartilage damage, and potential traumatic arthritis. Predictive s...
To investigate the accuracy of the multiple regression models to predict the individual risk of recurrent LPD....
The Patellar Instability probability calculator (PIP), Recurrent Instability of the Patella Score (RIP), and Patellar Instability Severity Score (PIS) scoring rules were measured in 171 patients with ...
In the case group of 171 patients, PIS accurately predicted recurrent lateral Patella dislocation in 143 patients. RIP was 96, and PIP was 83. The positive predictive values were 92.9%, 64%, and 68% r...
RIP and PIP did not work to predict LPD. PIS can accurately predict recurrent lateral patellar dislocation. It can aid doctors in making treatment decisions....
Level III, retrospective comparative study....
Acute patellar dislocation is a common knee injury in adolescents and adults that is associated with a high incidence of medial patellofemoral ligament (MPFL) injuries. The aim of this network meta-an...
We searched Medline, Embase, and CENTRAL databases. We included randomized controlled trials (RCTs) that compared operative and non-operative protocols for adolescent or adult patients with acute trau...
A total of 10 RCTs were deemed eligible. As per P-scores, open MPFL repair yielded the highest effectiveness with respect to Kujala score (P=0.81) and lowest odds for redislocation (P=0.14) whereas ar...
This network meta-analysis demonstrated arthroscopic MPFL repair is the most effective treatment protocol for the management of acute primary patellar dislocation....
