3D patellar shape is associated with radiological and clinical signs of patellofemoral osteoarthritis
Authors' conclusion
Patellar shape is associated with the prevalence of MRI-based PFOA in women. Some shape variants were also associated with clinical symptoms.
Study context
- Population
- Women with isolated magnetic resonance imaging (MRI)-based patellofemoral osteoarthritis (PFOA) and age- and BMI-matched healthy women, selected from a cohort studymatched cohort
- Participants
- 66 vs 66
- Exposure
- Women with isolated MRI-based PFOA vs age- and BMI-matched healthy women
- PFOAn = 66
- Controlsn = 66reference
- Outcome
- Association between 3D patellar shape (statistical shape model (SSM) shape parameters) and isolated MRI-based PFOA
Methodological detailsage- and BMI-matched, 3D statistical shape model, data from a cohort study
- Age- and BMI-matched
- 3D statistical shape model
- Data from a cohort study
Main finding
As reported in the abstract
Association of SSM shape variants with group status
- Shape variants with a statistically significant (<0.05) association with group status
- 4
Observational data: associations, not effects.
Further findings
Association of shape variants with osteophytes and cartilage loss on the patella (MRI osteoarthritis knee score (MOAKS))
- Shape variants (of the 4) associated with presence of osteophytes and cartilage loss on the patella
- 3
Association of patellar shape with clinical symptoms of PFOA
- Multiple associations found between patellar shape and clinical symptoms of PFOA
Original publication
3D patellar shape is associated with radiological and clinical signs of patellofemoral osteoarthritis. Osteoarthritis Cartilage. Published 7 January 2023. doi:10.
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