Results 1 to 10 of about 515,275 (257)

Patellar instability: current approach [PDF]

EFORT Open Reviews
Abstract Patellar dislocations present predominantly during adolescence, with a higher incidence observed among female patients. Patellofemoral joint stability depends critically on both osseous anatomy and soft tissue structures. Patellofemoral pathology can be classified into three major groups: objective patellar instability OPI ...
David H Dejour, David Mazy, Tomas Pineda, Nicolas Cance, Michael J Dan, Edoardo Giovannetti de Sanctis   +5 more
europepmc   +5 more sources

Prediction of Contralateral Patellar Instability after Ipsilateral Medial Patellofemoral Ligament Reconstruction [PDF]

Orthopaedic Journal of Sports Medicine
Background: About 10-16% of patients with patellar instability have bilateral involvement. The risk factors to predict future contralateral patellar instability in patients who present with ipsilateral patellar instability are not known.
Ali Asma MD, Samir Sharrak MD, Marcus Shelby MD, Matthew Veerkamp BA, Shital Parikh MD   +4 more
doaj   +2 more sources

Increased incidence of acute patellar dislocations and patellar instability surgical procedures across the United States in paediatric and adolescent patients

Journal of Children's Orthopaedics, 2021
Purpose Patellofemoral instability is a common cause of knee pain and dysfunction in paediatric and adolescent patients. The purpose of the study was to evaluate the frequency of patellar dislocations seen in emergency departments (EDs) and the rates of ...
Kelly H. McFarlane, Ryan P. Coene, Lanna Feldman, Patricia E. Miller, Benton E. Heyworth, Dennis E. Kramer, Mininder S. Kocher, Yi-Meng Yen, Matthew D. Milewski   +8 more
doaj   +2 more sources

Radiologic Measurements in the Assessment of Patellar Instability: A Systematic Review and Meta-analysis

Orthopaedic Journal of Sports Medicine, 2021
Background: Numerous diagnostic imaging measurements related to patellar instability have been evaluated in the literature; however, little has been done to compare these findings across multiple studies.
Alex E. White MD, Peters T. Otlans MD, MPH, Dylan P. Horan BA, Daniel B. Calem BA, William D. Emper MD, Kevin B. Freedman MD, Fotios P. Tjoumakaris MD   +6 more
doaj   +2 more sources

Medial Patellofemoral Ligament Reconstruction During Primary Total Knee Arthroplasty in Patients With Pre-existing Patellar Instability: Surgical Technique [PDF]

Arthroplasty Today
The medial patellofemoral ligament (MPFL) is vital for patellar stability and tracking within the trochlear groove in early flexion. Although MPFL reconstruction is a well-established treatment for patellar instability in native knees, its role during ...
Blake E. Delgadillo, DO, Rex Lutz, DO, Bradford Tucker, MD, Zachary Post, MD, Danielle Ponzio, MD, Alvin Ong, MD   +5 more
doaj   +2 more sources

Patellar Instability: Diagnostic Workup [PDF]

Video Journal of Sports Medicine
Background: The patella is a sesamoid bone that comprises a vital component of the extensor mechanism of the knee. It has static and dynamic restraints that differ throughout range of motion of the knee. Tracking, and potentially maltracking, are impacted additionally by the bony anatomy of the pelvis, femur ...
Zoe Hinton, Kendall Bradley, Jocelyn Wittstein, Melissa Allen   +3 more
openaire   +3 more sources

Patellar Tendon–Lateral Trochlear Ridge Distance Measurement as an Indicator of Patellar Instability With Malalignment [PDF]

Orthopaedic Journal of Sports Medicine
Background: There exist multiple radiographic measurements to assess patellar instability and maltracking. While originally described as a measurement predictive of patellar instability, patellar tendon–lateral trochlear ridge distance (PT-LTR) has not ...
Brittany M. Ammerman MD, Ryann Davie MD, Natalie K. Pahapill BS, Bennett E. Propp MD, Audrey C. Wimberly BPH, MPH, Joseph T. Nguyen MPH, Elizabeth R. Dennis MD, MS, Beth E. Shubin Stein MD   +7 more
doaj   +2 more sources

A Rare Presentation of Idiopathic Medial Patellar Instability: Case Report and Review of the Literature [PDF]

Journal of Orthopaedic Case Reports
Introduction: Idiopathic medial patellar subluxation (MPS) is an exceptionally rare and frequently underdiagnosed cause of anterior knee pain and instability.
Anurag Bhakhar, A Salman Ul Faris, B G Ragulajay, Bhaskar Sarkar, Nirvin Paul, Md Quamar Azam   +5 more
doaj   +2 more sources

3D Patellar instability Anatomical Severity Score (3D-PASS): A Novel Machine Learning Score Using 3D Bone Position From MRI to Predict Outcomes of Patellar Instability Treatment (Using a Subset of Data in the JUPITER Cohort) [PDF]

Orthopaedic Journal of Sports Medicine
Background: Patellar instability treatment outcomes vary. Early prediction of patient responses to treatment is needed to personalize interventions, reduce recurrent instability, and improve outcomes.
Marissa L. Sinopoli PhD, Anthony A. Gatti PhD, Christian E. Wright BS, Anna Bartsch MD, Matthew W. Veerkamp BA, Robert D. Boutin MD, Douglas N. Mintz MD, Kathleen H. Emery MD, Kevin G. Shea MD, Akshay S. Chaudhari PhD, , Eric J. Wall MD, Stacey Elangovan MD, Daniel W. Green MD, MS, FAAP, FACS, Peter D. Fabricant MD, MPH, Sabrina M. Strickland MD, Beth E. Shubin Stein MD, Shital N. Parikh MD, Scott L. Delp PhD, Seth L. Sherman MD   +19 more
doaj   +2 more sources

Patellar Instability

Clinics in Sports Medicine, 2014
Patellar instability is a common injury that can result in significant limitations of activity and long-term arthritis. There is a high risk of recurrence in patients and operative management is often indicated. Advances in the understanding of patellofemoral anatomy, such as knowledge about the medial patellofemoral ligament, tibial tubercle-trochlear
Jason L, Koh, Cory, Stewart
  +7 more sources