RT Journal Article
SR Electronic
T1 Rapid acetabular osteolysis secondary to subchondral insufficiency fracture.
JF The Journal of Rheumatology
JO J Rheumatol
FD The Journal of Rheumatology
SP 592
OP 595
VO 34
IS 3
A1 Takuaki Yamamoto
A1 Robert Schneider
A1 Yukihide Iwamoto
A1 Peter G Bullough
YR 2007
UL http://www.jrheum.org/content/34/3/592.abstract
AB A 93-year-old man presented with a one-month history of persistent left hip pain of sudden onset. At first visit, radiographs revealed a fracture line at the medial portion of the acetabulum with no displacement. Magnetic resonance imaging revealed bone marrow edema in the corresponding medial portion of the acetabulum. Radiographs obtained 2 months later showed rapid acetabular osteolysis with associated prominent migration of the femoral head into the acetabulum. Histology obtained from the hip joint was consistent with a subchondral insufficiency fracture with no evidence of massive chondrolysis. Our case was considered as a subchondral insufficiency fracture of the left acetabulum resulting in rapid acetabular osteolysis (protrusio acetabuli).