Optimal Treatment of Cam Morphology May Change the Natural History of Femoroacetabular Impingement
Authors: Domb BG, Annin S, Chen JW, Kyin C, Rosinsky PJ, Maldonado DR, Meghpara MB, Lall AC, Shapira J
DOI: 10.1177/0363546520949541
Background
Cam morphology (abnormal femoral head shape) contributes to femoroacetabular impingement (FAI) and hip osteoarthritis. The long-term effect of correcting cam deformity on joint preservation is not fully established.
Methods
Comparison of three patient groups — no cam deformity, surgically treated cam deformity, and untreated cam deformity — focusing on functional outcomes and risk of total hip arthroplasty (THA).
Key Findings
- Surgical correction of cam deformity improved function and reduced progression to THA.
- Untreated cam deformity was linked to higher-grade cartilage damage.
Conclusions
Addressing cam morphology surgically may alter the natural progression of FAI, preserving hip joint health and delaying or preventing THA.
What Does This Mean for Providers?
Consider early identification and surgical correction of cam lesions in FAI patients to optimize long-term joint preservation. Inform patients about the potential benefits of addressing cam morphology to improve outcomes and reduce arthritis progression.