Infrapatellar fat pad volume is greater in individuals with patellofemoral joint osteoarthritis and associated with pain

Cowan, Sallie M., Hart, Harvi F., Warden, Stuart J. and Crossley, Kay M. (2015) Infrapatellar fat pad volume is greater in individuals with patellofemoral joint osteoarthritis and associated with pain. Rheumatology International, 35 8: 1439-1442. doi:10.1007/s00296-015-3250-0


Author Cowan, Sallie M.
Hart, Harvi F.
Warden, Stuart J.
Crossley, Kay M.
Title Infrapatellar fat pad volume is greater in individuals with patellofemoral joint osteoarthritis and associated with pain
Journal name Rheumatology International   Check publisher's open access policy
ISSN 1437-160X
0172-8172
Publication date 2015-08-20
Year available 2015
Sub-type Letter to editor, brief commentary or brief communication
DOI 10.1007/s00296-015-3250-0
Open Access Status Not Open Access
Volume 35
Issue 8
Start page 1439
End page 1442
Total pages 4
Place of publication Heidelberg, Germany
Publisher Springer
Collection year 2016
Language eng
Abstract There is relatively little research specifically investigating patellofemoral joint osteoarthritis (PFJ OA). In particular, the source of pain in PFJ OA has not been established. One structure that may be an important contributor is the infrapatellar fat pad (IPFP). This cross-sectional study aimed to: (1) compare IPFP volume in individuals with and without PFJ OA and (2) assess the relationship between IPFP volume and pain in individuals with PFJ OA. Thirty-five participants with symptomatic and radiographic PFJ OA and 11 asymptomatic controls with no radiographic signs of OA were recruited. IPFP volume was measured in both groups from magnetic resonance images, and pain in the PFJ OA group was determined using the pain subscale of the Knee Injury and Osteoarthritis Outcome Score (KOOS-pain). The PFJ OA group had 23.6 % greater IPFP volume than the control group (p = 0.04). After the inclusion of covariates, IPFP volume remained 19.6 % greater in the PFJ OA group (p = 0.03). IPFP volume explained 20.1 % of the variance in KOOS-pain in the PFJ OA group, with a larger IPFP being associated with worse pain (p < 0.01). Individuals with PFJ OA had a larger IPFP than controls, and IPFP volume was directly related to PFJ OA pain. These data suggest a role for the IPFP in PFJ OA and highlight a need for further investigation into the casual relationship between IPFP and PFJ changes.
Keyword Anterior knee pain
Hoffa’s fat pad
Infrapatellar fat pad
Magnetic resonance
Osteoarthritis
Patellofemoral joint
Q-Index Code CX
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Letter to editor, brief commentary or brief communication
Collections: Non HERDC
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