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Biomedical subjects

R M McFarlane

Publications and source records attributed to R M McFarlane.

32 records · Page 2Linked to original sources
PubMed1978

Human pneumatic tourniquet paralysis.

A 47-year-old woman experienced loss of strength, sensation, and sweating distal to a pneumatic tourniquet applied to her upper arm during operation for a Dupuytren contracture. Electrophysiologic tests showed a severe conduction block of sensory and motor fibers, well localized to the presumed lower margin of the tourniquet, with little evidence of axonal degeneration. Reversal of block began at 5 weeks and was complete in 6 months, coincident with almost full clinical recovery. Sweating was absent before 5 weeks and then returned, accompanied by a causalgic syndrome that did not disappear until recovery from the electrophysiologic block. The findings in this case correspond closely to pneumatic tourniquet paralysis in baboons, the pathophysiology having been recently defined. The relationship of autonomic changes to the electrophysiologic block suggest a mechanism for this patient's causalgia.

Causalgia↗
PubMed1976

Digital nerve grafts with the lateral antebrachial cutaneous nerve.

The lateral antebrachial cutaneous nerve was used as a nerve graft to bridge a defect in a digital nerve, when with the digit in full extension the nerve ends could not be approximated without tension. Thirteen grafts have been followed from 7 to 23 months. Two patients did not regain two point discrimination and therefore had a poor result. The remaining 11 patients recovered two point discrimination between 7 and 20 mm.

Adult↗
PubMedDate not supplied

Interrater reliability of pinch and grip strength measurements in patients with cumulative trauma disorders.

The purposes of this study were to examine the interrater reliabilities of grip, lateral pinch, and tripod pinch measurements in patients with cumulative trauma disorders. Thirty-eight patients with unilateral (n = 28) or bilateral (n = 10) cumulative trauma disorders were tested independently by two hand therapists, during a one-hour period. The tests were completed in a normal hand clinic environment using the standard protocol recommended by the American Society of Hand Therapists. Interrater reliability coefficients for the scores obtained using either a single repetition or the mean of three repetitions were very high (intraclass correlation coefficient [ICC] > 0.87) for all strength measurements. As a result, strength determination in this patient group, when performed by different hand therapists, may be considered reliable.

Evaluation Studies as Topic↗