. A practical treatise on medical diagnosis for students and physicians . are the most characteristic digital features of the disease.(Fig. 28.) Flexion of the first phalanx of the little finger is due to contraction ofthe palmar fascia or to paralysis of the common extensor from disease ofthe musculospiral nerve. Contraction of the fascia of the hand, causingmore or less flexion of the little and ring fingers, is frequently seen, andmay be an indication of the gouty diathesis. It is certain that thisdeformity may be seen in several members or in successive generationsof a family in which gout
. A practical treatise on medical diagnosis for students and physicians . are the most characteristic digital features of the disease.(Fig. 28.) Flexion of the first phalanx of the little finger is due to contraction ofthe palmar fascia or to paralysis of the common extensor from disease ofthe musculospiral nerve. Contraction of the fascia of the hand, causingmore or less flexion of the little and ring fingers, is frequently seen, andmay be an indication of the gouty diathesis. It is certain that thisdeformity may be seen in several members or in successive generationsof a family in which gout is prevalent. It is called Dupuytrens con-traction. Abnormal extension is often very marked. Hyper extension of the mid-dle phalanx is due to paralysis of the flexor sublimis from disease of themedian nerve; hyperextension of the distal phalanges to paralysis of theflexor profundus muscle from disease of the median and ulnar of the proximal phalanx, with extreme flexion of the two distalphalanges, contributes to form the claw-hand. (See Muscles.) Con-. Heberdens nodes. (Original.) 196 EXAMINATION OF THE EXTREMITIES. trcu-lions due to chorea or to central lesions, as posthemiplegic contractions,will be considered under Special Diagnosis. It is thus seen that the peculiar combined extension and flexion, caus-ing abnormal shape of bands and fingers, may be due to (1) local joint-
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