ArticleJournal of children's orthopaedics2021
Increased incidence of acute patellar dislocations and patellar instability surgical procedures across the United States in paediatric and adolescent patients.
Article in Journal of children's orthopaedics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 3 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
28 citing papers in PubMed, 3 syntheses or guidelines pooled it, 41 citations in OpenAlex.
- The incidence and epidemiology of patellar fractures following medial patellofemoral ligament reconstruction: a systematic review and meta-analysis.Archives of orthopaedic and trauma surgery · 2026Pooled it
- Large variability in minimal clinically important difference, substantial clinical benefit and patient acceptable symptom state values among literature investigating patellar stabilization surgery: A systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Pooled it
- Tibial tubercle to trochlear groove distance versus tibial tubercle to posterior cruciate ligament distance for predicting patellar instability: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Pooled it
- Clinical and functional predictors of delayed return to sport after first-time patellar dislocation in adolescents: A prospective cohort study.Irish journal of medical science · 2026Article
- Unique Activity Characteristics of Adolescents With Patellar Dislocations: A Retrospective Review at a Single Institution.HSS journal : the musculoskeletal journal of Hospital for Special Surgery · 2026Article
- Validation of the ACL Return to Sport after Injury (ACL-RSI) Scale in Pediatric and Adolescent Patients After Medial Patellofemoral Ligament Reconstruction.Orthopaedic journal of sports medicine · 2026Article
- National Trends in the Surgical Management of Pediatric Patellofemoral Instability: A Retrospective Analysis From 2010 to 2022.Journal of the Pediatric Orthopaedic Society of North America · 2026Article
- Reliability of Existing Measures and Classification Systems For Trochlear Dysplasia.Orthopaedic journal of sports medicine · 2026Article
- Arthroscopic Management of Patellar Instability in Skeletally Immature Patients: Current Concepts and Future Directions.Journal of clinical medicine · 2025Review
- Midterm Outcomes of Medial Patellofemoral Ligament Reconstruction in Adolescent Athletes: Comparison Between Acute and Recurrent Patella Dislocation.Journal of clinical medicine · 2025Article
- Care for Pediatric Patellofemoral Instability Prior to Orthopaedic Referral.Journal of the Pediatric Orthopaedic Society of North America · 2025Article
- Variation in Surgical Technique for Medial Patellofemoral Ligament Reconstruction in Skeletally Immature Patients: Data From the JUPITER Prospective Multicenter Study Group.Orthopaedic journal of sports medicine · 2025Article
- Patellar Instability Events Requiring Emergency Department Management - A 20-year Analysis.Journal of the Pediatric Orthopaedic Society of North America · 2025Article
- Research Progress on Return to Sport After Surgery for Lateral Patellar Dislocation.Orthopedic reviews · 2025Article
- Patellofemoral Instability in the Pediatric and Adolescent Population: From Causes to Treatments.Children (Basel, Switzerland) · 2024Review
- Anatomic physeal-sparing MPFL reconstruction in skeletally immature patients shows favourable outcomes at a minimum of 24-month follow-up.Journal of experimental orthopaedics · 2024Article
- Patient-reported Outcomes Following Nonoperative Treatment of Pediatric First-Time Patellar Dislocation.Journal of the Pediatric Orthopaedic Society of North America · 2024Article
- Patellofemoral Instability in Pediatric and Adolescent Athletes: A Review of Risk Factors and Treatments.HSS journal : the musculoskeletal journal of Hospital for Special Surgery · 2024Article
- Incidence of arthroscopic and open pediatric shoulder stabilization procedures across the United States: a Pediatric Health Information System database study.JSES reviews, reports, and techniques · 2024Article
- The thickness change ratio and preservation ratio of the infrapatellar fat pad are related to anterior knee pain in patients following medial patellofemoral ligament reconstruction.Journal of orthopaedic surgery and research · 2024Article
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposePatellofemoral 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 surgical procedures for patellar instability at paediatric hospitals in the United States between 2004 and 2014.
methodsThe Pediatric Health Information System database was queried for all paediatric patients who underwent surgery for patellar instability or were seen in the ED for acute patellar dislocation between 2004 and 2014. This was compared with the annual numbers of overall orthopaedic surgical procedures.
resultsBetween 2004 and 2014, there were 3481 patellar instability procedures and 447 285 overall orthopaedic surgical procedures performed at the included institutions, suggesting a rate of 7.8 per 1000 orthopaedic surgeries. An additional 5244 patellar dislocations treated in EDs were identified. Between 2004 and 2014, the number of patellar instability procedures increased 2.1-fold (95% confidence interval (CI) 1.4 to 3.0), while orthopaedic surgical procedures increased 1.7-fold (95% CI 1.3 to 2.0), suggesting a 1.2-fold relative increase in patellar instability procedures, compared with total paediatric orthopaedic surgeries.
conclusionThis study shows a significant rise in the rate of acute patellar instability treatment events in paediatric and adolescent patients across the country. Surgery for patellar instability also increased over the study period, though only slightly more than the rate of all paediatric orthopaedic surgical procedures. This may suggest that increasing youth sports participation may be leading to a spectrum of increasing injuries and associated surgeries in children. LEVEL OF EVIDENCE: IV.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.