Femoral sulcus angle and increased patella facet cartilage volume in an osteoarthritic population

Davies-Tuck, M., Teichtahl, A.J., Wluka, A.E., Wang, Y., Urquhart, D.M., Cui, J. and Cicuttini, F.M. 2008, Femoral sulcus angle and increased patella facet cartilage volume in an osteoarthritic population, Osteoarthritis and cartilage, vol. 16, no. 1, pp. 131-135.


Title Femoral sulcus angle and increased patella facet cartilage volume in an osteoarthritic population
Author(s) Davies-Tuck, M.
Teichtahl, A.J.
Wluka, A.E.
Wang, Y.
Urquhart, D.M.
Cui, J.
Cicuttini, F.M.
Journal name Osteoarthritis and cartilage
Volume number 16
Issue number 1
Start page 131
End page 135
Publisher Elsevier
Place of publication London, England
Publication date 2008-01
ISSN 1063-4584
1522-9653
Keyword(s) sulcus angle
patella cartilage
patella facets
patellofemoral osteoarthritis
Summary Objective
The patellofemoral joint is an example of an incongruent articulation commonly affected by osteoarthritis (OA). The relationship between femoral sulcus angle and the development and progression of patellofemoral OA is unclear. The aim of this study was to examine the relationship between the femoral sulcus angle at baseline and patella cartilage volume at baseline and at 2-year follow-up among community based adults with established knee OA.

Methods
One hundred subjects had magnetic resonance imaging of their symptomatic knee at baseline and at 2-year follow-up. From these images, patella cartilage volume was determined. Radiographic skyline views of the patellofemoral joint were taken at baseline to measure the femoral sulcus angle.

Results
For every 1° increase in the femoral sulcus angle (i.e., as the sulcus angle became more shallow) there was an associated 9.1 mm3 (95% CI 3.1, 15.0) increase in medial patella cartilage volume at baseline (P = 0.003). There was a similar trend that approached statistical significance between the femoral sulcus angle and the lateral patella facet cartilage volume at baseline (P = 0.09). There was no association between the femoral sulcus angle at baseline and the change in patella cartilage volume over 2 years in either patellofemoral compartment.

Conclusion
These results infer that the femoral sulcus angle is a cross-sectional determinant of the amount of patella cartilage, but is not a major determinant of the annual change of patella cartilage volume among people with knee OA. These data suggest that a shallower sulcus in the context of established OA may be an advantageous anatomical variant. Further longitudinal studies are required to determine the role of the femoral sulcus angle in OA.

Language eng
Field of Research 110314 Orthopaedics
Socio Economic Objective 920116 Skeletal System and Disorders (incl. Arthritis)
HERDC Research category C1.1 Refereed article in a scholarly journal
HERDC collection year 2008
Copyright notice ©2007, Osteoarthritis Research Society International
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017967

Document type: Journal Article
Collection: Public Health Research, Evaluation, and Policy Cluster
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