Abstract
Specimens from thirty-four knees in twenty-eight patients with histologically proved osteonecrosis were reviewed. Twelve knees had the clinical diagnosis of so-called idiopathic osteonecrosis; eight, osteoarthrosis; and fourteen, rheumatoid arthritis. Pathologically, the necrosis was localized in the subchondral region of the medial femoral condyle in 67 per cent of the knees. There were pathological fracture and collapse and fragmentation of the necrotic segment leading to marked deformities in most cases. The response to necrosis consisted of histiocytic resorption of necrotic material and formation of granulation tissue and reactive new bone surrounding it. The response was relatively less prominent in the knees with degenerative joint disease and rheumatoid arthritis.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.