[Relationship between knee pain and X-ray findings of osteoarthritis with reference to bone mineral density measured by computed X-ray densitometry].
We studied the relation between performance of activities of daily living and X-ray findings of osteoarthritis of the knee in aged persons. We made Covariance Structure Analysis models of knee pain, X-ray findings and bone mineral density as measured by computed X-ray densitometry. The subjects were 257 women aged from 47 to 88 years who were outpatients at an orthopedic clinic. The best-fit model indicated that loss of bone mineral density in metacarpals was associated with X-ray findings of knee-joint degeneration, as well as with knee pain. No relationship was found between knee-joint degeneration and knee pain. These results suggest that bone mineral density should be taken into consideration when interpreting X-ray findings of knee pain. This model incorporates the effects of degeneration of the subchondral bone. In summary, we should use measurements of bone mineral density along with X-ray findings for the diagnosis and treatment of knee osteoarthritis. We may be able to precisely predict knee pain caused by osteoarthritis, by analysis of a model that includes a lesion in joint cartilage.
Miyamura
T
T
Department of Health Sciences, Yamanashi Medical University.
Kinoshita
T
T
Asaka
A
A
D015502:Absorptiometry, Photon; D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D015519:Bone Density; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D008875:Middle Aged; D010003:Osteoarthritis / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D010146:Pain / Q000209:etiology*; D014057:Tomography, X-Ray Computed