Observational studySports medicine (Auckland, N.Z.)2025
Long-Term Knee Health in Adults with a History of Adolescent Osgood-Schlatter: A National Cohort Study of Patients in Secondary Care in Denmark 1977-2020.
Observational study in Sports medicine (Auckland, N.Z.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04313621 (Management of Lower Limb Apophysitis), which is not on this map. Cited by 2 papers, 1 of them a synthesis 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
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.
Management of Lower Limb Apophysitis: A Cross-sectional Study on Long-term Impact on Health Status
Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Non-surgical treatment for lower limb apophyseal injuries.The Cochrane database of systematic reviews · 2026Pooled it
- The association between patellar malalignment and Osgood-Schlatter disease in children.Frontiers in pediatrics · 2026Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundOsgood-Schlatter has, until recently, been suggested to be a benign condition, affecting adolescents in terms of knee pain and decreased sports participation during growth, with no long-term consequences seen later in adulthood.
objectivesThe objectives of this study were to describe the long-term knee health in adults with a history of Osgood-Schlatter, compare these findings with healthy population estimates, and investigate if explanatory variables are associated with current knee health.
methodsThe Danish Patient Registry identified patients ≥ 18 years diagnosed with adolescent Osgood-Schlatter in hospitals during 1977-2020. All cases participated in a survey about knee-related health and comorbidities. Existing literature was sourced for the healthy population estimates for comparisons. Explanatory variables were recalled Osgood-Schlatter duration, pain levels, restrictions, and current tibial tubercle prominence.
resultsOf 1281 identified patients, 400 responded. Most reported having a current bony prominence of the tibial tubercle (85%) and sustained pain/problems from the same area (73%). Compared with healthy population estimates, Osgood-Schlatter cases scored lower on the Knee Injury and Osteoarthritis Outcome Score on all subscales (p < 0.05), particularly for "sport/rec" and "quality of life" (Cohen's d > 0.8). Similarly, cases exhibited a large risk of "jumper's knee" (odds ratio: 70.4 [95% confidence intervals, CI: 32.9; 155.0], p < 0.0001). Symptom duration and pain levels were negatively associated with several outcomes (p < 0.05).
conclusionsAdults with a history of Osgood-Schlatter have significantly worse long-term knee health than what is observed from healthy population estimates. Recalled longer symptom duration and higher pain levels were associated with worse current knee health. This information should potentially guide management to maintain knee health over time, as the condition is not always as benign and self-limiting as previously thought. REGISTRATION: NCT04313621.
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