Bone mineral density in patients with destructive arthrosis of the hip joint.
Recent reports have shown the existence of subchondral insufficiency fracture in rapidly destructive arthrosis of the hip joint (RDA), and the findings suggest that osteopenia is related to the pathogenesis of the rapid progression of this disease. Therefore, we measured bone mineral density (BMD) in RDA patients. We measured BMD of the lumbar spine, radius, and calcaneus using dual-energy X-ray absorptiometry in 19 patients with RDA and 75 with osteoarthritis of the hip (OA) and compared BMD at different skeletal sites between RDA and OA patients. No significant differences were observed in BMD of the lumbar spine, ultradistal radius, mid-radius, and calcaneous between the RDA and OA groups. Our data suggest that RDA is not accompanied by generalized osteoporosis. Factors other than generalized bone status, for example, BMD around the affected hip joint before destruction, need to be analyzed to elucidate the pathophysiological mechanism of RDA.
Department of Orthopedic Surgery, Nagasaki Prefectural Center of Medicine and Welfare for Children, 24-3 Eishohigashimachi, Isahaya, 854-0071, Japan, kokano@pref.nagasaki.lg.jp.
Kunihiko
K
Okano
Kiyoshi
K
Aoyagi
Hiroshi
H
Enomoto
Makoto
M
Osaki
Ko
K
Chiba
Kazumasa
K
Yamaguchi
D015502:Absorptiometry, Photon / Q000379:methods; D000368:Aged; D000369:Aged, 80 and over; D015519:Bone Density / Q000502:physiology*; D001851:Bone Diseases, Metabolic / Q000000981:diagnostic imaging / Q000473:pathology; D002111:Calcaneus / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D006615:Hip / Q000000981:diagnostic imaging / Q000473:pathology; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000473:pathology; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000000981:diagnostic imaging / Q000473:pathology*; D010024:Osteoporosis / Q000000981:diagnostic imaging / Q000473:pathology