Quotation from: Manual of SurgeryWritten by: Alexander Miles and Alexis Thomson |
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The _ankylosing type_ of chronic arthritis is fortunately much rarer than those described above, and is chiefly met with in the joints of the fingers and toes and in those of the vertebral column. The synovial membrane proliferates, grows over the cartilage, and replaces it, and when two such articular surfaces are in contact they tend to adhere, thus obliterating the joint, cavity, and resulting in fibrous or bony ankylosis. The changes progress slowly and, before they result in ankylosis, various sub-luxations and dislocations may occur with distortion and deformity which, in the case of the fingers, is extremely disabling and unsightly (Fig. 160).
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