. Diseases of bones and joints . y walling itin with fibrous tissues, and in the bone by buildingup thickened trabeculae in addition. All her effortstend to destroy joint function. Tuberculosis joint disease, if no serious damagehas been done to the articular cartilage, may turnback to practically complete recovery. The usualresult is a more or less damaged joint with a restric- Resulttion or abolition of motion. The ankylosis is al-ways fibrous. Bony union never takes place exceptafter resection, or in children after a mixed RICE BODIES. Rice bodies are small, hard, white, smooth
. Diseases of bones and joints . y walling itin with fibrous tissues, and in the bone by buildingup thickened trabeculae in addition. All her effortstend to destroy joint function. Tuberculosis joint disease, if no serious damagehas been done to the articular cartilage, may turnback to practically complete recovery. The usualresult is a more or less damaged joint with a restric- Resulttion or abolition of motion. The ankylosis is al-ways fibrous. Bony union never takes place exceptafter resection, or in children after a mixed RICE BODIES. Rice bodies are small, hard, white, smooth, slip-pery bodies, sometimes found in tuberculous joints, Rice Bodies 1 See section on ankylosis. 60 DISEASES OF BONES AND JOINTS especially in the synovial forms of the disease char-acterized by a slow extension arid more or lesseffective efforts at repair. The nature of theirorigin has been a disputed point, but, inasmuch asin one joint in our possession a collection of themwas found enclosed in a well-defined fibrous capsule. Fig. 27. Tuberculosis of several years duration in the elbow of an adulttreated by conservative measures. Note the disappearance of thecartilage, and the atrophy of the bone. This picture illustrates wellthe futility of conservative treatment in the adult. in the diseased synovia, we may infer that they arethe result of a process of repair, possibly of thewalling off and condensation of tuberculosis granu-lations. They must be set free in the joint—theyare usually found free—by the bursting of theircapsule. DISEASES OF B ONES AND JOINTS 61 The tissues in the neighborhood of a tubercu-lous joint take part in the disease to a limited ex-tent. The tendon sheaths and bursae—synovialstructures—are prone to direct involvement. The Involvement of other tissues suffer from interference with their A . , . , r t Structures nutrition. Atrophy is a marked feature of tubercu-lous joint disease, and in this atrophy all the tissuesof the limb take part—musc
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