PURPOSE: To determine if ossification variants of the femoral condyles involving the subchondral bone plate are associated with osteochondritis dissecans (OCD). MATERIALS AND METHODS: The prevalence of ossification variants of the unaffected femoral condyle in 116 patients (aged 9-14 years) with unicondylar OCD on MRI (magnetic resonance imaging) of the knee was compared to a control group of 579 patients (aged 9-14 years) without OCD. The evolution of the ossification variants in both groups was studied by reviewing follow-up MR imaging side by side with the baseline study. RESULTS: The prevalence of ossification variants in the unaffected condyle in patients with OCD (12.9%) and in the control group of patients without OCD (12.6%) was similar (p=0.88). Evolution of ossification variants to OCD was not seen on follow-up MRI examinations. All variants had decreased in size or were no longer visible. CONCLUSION: Ossification variants of the femoral condyle that involve the subchondral bone plate are not associated with OCD. CLINICAL RELEVANCE STATEMENT: Ossification variants are not associated with OCD, indicating that routine MRI follow-up in affected children is not mandatory.
PURPOSE: To determine if ossification variants of the femoral condyles involving the subchondral bone plate are associated with osteochondritis dissecans (OCD). MATERIALS AND METHODS: The prevalence of ossification variants of the unaffected femoral condyle in 116 patients (aged 9-14 years) with unicondylar OCD on MRI (magnetic resonance imaging) of the knee was compared to a control group of 579 patients (aged 9-14 years) without OCD. The evolution of the ossification variants in both groups was studied by reviewing follow-up MR imaging side by side with the baseline study. RESULTS: The prevalence of ossification variants in the unaffected condyle in patients with OCD (12.9%) and in the control group of patients without OCD (12.6%) was similar (p=0.88). Evolution of ossification variants to OCD was not seen on follow-up MRI examinations. All variants had decreased in size or were no longer visible. CONCLUSION: Ossification variants of the femoral condyle that involve the subchondral bone plate are not associated with OCD. CLINICAL RELEVANCE STATEMENT: Ossification variants are not associated with OCD, indicating that routine MRI follow-up in affected children is not mandatory.
Authors: Ferenc Tóth; Marc A Tompkins; Kevin G Shea; Jutta M Ellermann; Cathy S Carlson Journal: J Bone Joint Surg Am Date: 2018-12-19 Impact factor: 5.284
Authors: Štefan Zbýň; Cassiano Santiago; Casey P Johnson; Kai D Ludwig; Lin Zhang; Shelly Marette; Marc A Tompkins; Bradley J Nelson; Takashi Takahashi; Gregory J Metzger; Cathy S Carlson; Jutta M Ellermann Journal: J Orthop Res Date: 2021-10-20 Impact factor: 3.102
Authors: Ferenc Tóth; Frédéric H David; Elizabeth LaFond; Luning Wang; Jutta M Ellermann; Cathy S Carlson Journal: J Orthop Res Date: 2016-06-19 Impact factor: 3.494
Authors: Robert Hemke; Nikolay Tzaribachev; Anouk M Barendregt; J Merlijn van den Berg; Andrea S Doria; Mario Maas Journal: Pediatr Radiol Date: 2018-05-08