Biomedical subjects

R Kanakamedala

Publications and source records attributed to R Kanakamedala.

3 recordsLinked to original sources

PubMed1986

Conduction of the palmar cutaneous branch of the median nerve.

The palmar cutaneous branch of the median nerve (PCBMN) usually arises about 5.5cm proximal to the radial styloid and innervates skin of the thenar eminence. The nerve may be injured by direct trauma or during surgery at the wrist. The action potential of the nerve was recorded in 50 nerves of 25 normal subjects, by antidromic stimulation of the median nerve 10cm from the surface recording electrode over the midthenar eminence. The mean latency and mean amplitude of the evoked response were 2.6 +/- 0.2msec and 12 +/- 4.6 mu v, respectively. The mean duration of the evoked potential was 1.78msec. The technique is simple and may be useful in evaluating lesions of the PCBMN.

Adult↗

PubMed1985

Posterior interosseous nerve syndrome caused by an intermuscular lipoma.

The posterior interosseous nerve is prone to entrapment at various anatomical sites along its course in the upper forearm. A variety of lesions may account for this resulting nerve palsy. Compression of the nerve by lipomata is uncommon; 16 such cases have been reported in the medical literature. We present a case of a lipoma causing pressure on the deep branch of the radial nerve. In this case, and in seven similar cases previously reported in detail, the mass became visible after the onset of finger and hand extensor muscle weakness. Hence, the possibility of nerve compression by a tumor must be suspected in the differential diagnosis. Paralysis that does not respond to four to six weeks of conservative treatment necessitates surgical intervention in order to assure maximum recovery of the affected nerve.

Electromyography↗

PubMed1982

Needle stimulation.

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Electromyography↗