Do clinical findings associate with radiographic osteoarthritis of the knee?

Article Abstract:

X-rays are usually used to make the diagnosis of osteoarthritis (OA) of the knee. However, recent criteria published by the American Rheumatism Association have indicated that information from medical history and physical examination is sufficient to provide an OA diagnosis, particularly for research purposes. However, the relationship between medical findings and radiographic OA, or X-ray determination of OA, has not been well studied. The relationship between 18 medical symptoms and history and radiographic diagnosis of OA was studied using a survey of 2,865 subjects. Radiographic OA was detected in the right knees of 191 men and 373 women, roughly 20 percent of the group studied. There was a significant association between radiographic OA and 14 of the 18 medical symptoms, but no single variable was sufficiently accurate according to several measures. The most predictive symptoms were pain during knee bending, limitation of function, history of swelling, current soft tissue swelling, and bony enlargement or tenderness. Age was a significant predictor of OA as well. After adjusting for age, several factors decreased in significance, indicating they were more related to age factors than disease factors. The study found that the best combination of variables was only slightly better than age alone in predicting radiographic OA, and suggests that X-ray diagnosis of OA cannot be supplanted by reliance on medical findings alone. (Consumer Summary produced by Reliance Medical Information, Inc.)

Joint diseases

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Perceptual variation in grading hand, hip, and knee radiographs: observations based on an Australian Twin Registry study of osteoarthritis

Article Abstract:

An experienced radiologist can evaluate X-rays of patients with osteoarthritis, but an inexperienced radiologist should ask another radiologist to look at the X-ray. X-rays are often used to diagnose osteoarthritis and specific criteria exist for accurately diagnosing the disease.

Evaluation, Knee, Hand, Hip joint, Radiologists

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Idiopathic osteoarthritis and contracture: causal implications

Article Abstract:

The causes for the relative occurrence of contracture and idiopathic osteoarthritis in women are examined.

New Zealand, Women, Medical examination, Contracture

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