Trial reportBMC musculoskeletal disorders2019
Recurrent lateral patella dislocation affects knee function as much as ACL deficiency - however patients wait five times longer for treatment.
Trial report in BMC musculoskeletal disorders, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02263807 (RCT Study), which is not on this map. Cited by 26 papers.
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
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
RCT Study:Knee Function in Patients With Two or More Episodes of Patella Dislocations
Who cites it
26 citing papers in PubMed.
- Medial Patellofemoral Ligament Reconstruction vs Nonoperative Treatment for Recurrent Lateral Patellar Dislocation: Three-Year Results From a Randomized Controlled Trial.The American journal of sports medicine · 2026Trial
- Patients' experiences of living with patellar instability before and after surgery: a qualitative interview study.BMJ open · 2023Trial
- Medial patellofemoral ligament reconstruction is superior to active rehabilitation in protecting against further patella dislocations.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Trial
- Risk Factor Evaluation for Loose Body Following First-Time Patellar Dislocation in Pediatric Patients.Journal of the Pediatric Orthopaedic Society of North America · 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
- Relationship of Baseline Physical Activity and Morphologic Factors in Patients With Lateral Patellar Instability.Orthopaedic journal of sports medicine · 2026Article
- Preoperative kinesophobia affects self-perceived knee function and quality of life after patellar stabilising surgery.Journal of experimental orthopaedics · 2026Article
- Arthroscopic Management of Patellar Instability in Skeletally Immature Patients: Current Concepts and Future Directions.Journal of clinical medicine · 2025Review
- Incidence and treatment strategy for patellar instability in Norway.Journal of experimental orthopaedics · 2025Article
- The ability of the Knee Osteoarthritis Outcome Score to detect changes over time is limited in patients with patellar instability due to substantial ceiling effect.Journal of experimental orthopaedics · 2025Article
- Psychological readiness for return to sport following distal femoral osteotomy in patients with recurrent patellar instability.BMC musculoskeletal disorders · 2025Article
- Preoperative subjective assessment of disease-specific quality of life significantly influenced the likelihood of achieving the minimal clinically important difference after surgical stabilization for recurrent lateral patellar instability.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Research Progress on Return to Sport After Surgery for Lateral Patellar Dislocation.Orthopedic reviews · 2025Article
- Recurrent patellar dislocation: personalised therapy or operative treatment? The REPPORT randomised trial protocol.BMJ open · 2024Article
- Rehabilitation after surgery for patellar instability.Journal of experimental orthopaedics · 2024Article
- The Tibial Tuberosity-Trochlear Groove Distance Can either Increase or Decrease during Adolescent Growth.Children (Basel, Switzerland) · 2024Article
- High prevalence of patellar dislocation and trochlear dysplasia in a geographically and genetically isolated society: an observational national cohort study from the Faroese Knee Cohort.Acta orthopaedica · 2024Observational
- Is combined MPFL reconstruction and tubercule tibial osteotomy superior to isolated reconstruction? A systematic review and meta-analysis.Journal of clinical orthopaedics and trauma · 2023Article
- Association between single leg hop tests and patient reported outcome measures and patellar instability in patients with recurrent patellar dislocations.BMJ open sport & exercise medicine · 2023Article
- Medial patellofemoral ligament reconstruction for recurrent patellar dislocation allows a good rate to return to sport.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
backgroundSurgical treatment of young patients with recurrent lateral patella dislocation (RLDP) is often recommended because of loss of knee function that compromises their level of activity or even their daily life functioning. This situation is comparable to young patients with an anterior cruciate ligament (ACL) rupture. The purpose of this study was therefore to explore the time from injury to surgery and the pre-operative symptoms and knee function of young RLPD patients scheduled for stabilizing surgery and compare this group to age and sex-matched ACL-deficient patients.
methodForty-seven patients with unilateral RLPD listed for isolated medial patellofemoral ligament reconstruction were included in the study (RLPD-group). This group was compared to an age, sex and BMI matched ACL patient group obtained from the Norwegian knee ligament registry (ACL-group) for the following outcome measures: the knee injury and osteoarthritis outcome score (KOOS) assessed on the day of surgery and time from injury to surgery.
resultsThe RLPD-group scored significantly lower than the ACL-group for the three KOOS subscales "Pain" (73.6 vs. 79.8, p < 0.05), "Symptoms" (71.7 vs. 79.3, p < 0.05) and "ADL" (84.7 vs 89.5, p < 0.05). The lowest KOOS values were found for Sports/Recreation (53.5 vs. 51.3, p = 0.65) and Quality of life (37.6 vs. 36.7, p = 0.81). The average time from primary injury to surgery was 6 months for the ACL group and 31 months for the RLPD group.
conclusionRLPD affected knee function as much as ACL deficiency, and was associated with more pain. Still the RLDP patients waited on average 5 times longer for surgery.
trial registrationThe patients with RLPD consisted of patients who were examined for possible recruitment for a concurrent prospective randomized controlled trial comparing conservative treatment and isolated surgical medial patellofemoral ligament (MPFL) reconstruction (Clinical trials no: NCT02263807 , October 2014).
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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.