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Journal Title
Title of Journal: Knee Surg Sports Traumatol Arthrosc
Abbravation: Knee Surgery, Sports Traumatology, Arthroscopy
Publisher
Springer Berlin Heidelberg
DOI
10.1007/bf02885519
ISSN
1433-7347
Eightyseven cadaveric knees were included in this study with median age of 83 years 62–97 OA depth evaluation was performed following Outerbridge’s classification Patella OA lesions were classified macroscopically using Han’s method type 1 no or minimal lesion type 2 medial facet lesion without involvement of the ridge type 3 lateral facet lesion without involvement of the ridge type 4 lesion involving the ridge only type 5 medial facet lesion with involvement of the ridge type 6 lateral facet lesion with involvement of the ridge and type 7 global lesion Femoralside OA lesions in the PF joint were classified using a modified Chang’s method Type 1 no or minimal lesion type 2 medial facet lesion type 3 centre of patella groove lesion type 4 lateral facet lesion and type 5 global lesion Wholebody CTs of all cadavers were taken before knee dissection Using the CT data patella morphology was evaluated following Wiberg’s classification Femoral sulcus angle SA sulcus depth SD and sulcus width SW were also measured using CT dataThe measured SA SD and SW were 1448° ± 72° 70 ± 16 mm and 34 ± 03 mm respectively When patella OA depth was divided into grades 1–2 n = 30 and grades 3–4 n = 57 the SD of grade 1–2 knees was 65 ± 13 mm and the SD of grade 3–4 knees was 73 ± 16 mm constituting a significant difference p = 001 No significant difference in either SA or SW was observed between the two groups Patella OA lesion femoralside OA lesion and depth were not affected by SA SD or SW Wiberg’s classification also showed no significant correlation with PFOADeep SD was significantly correlated with the incidence of severe patella OA Wiberg’s classification SA and SW were not correlated with PFOA For clinical relevance there is a risk of PFOA progression in patients with deep SD and treatment should be applied accordingly