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Biomedical subjects

S Kahanovich

Publications and source records attributed to S Kahanovich.

7 recordsLinked to original sources
PubMed1987

Morbidity and recurrence rates after surgical treatment of malignant melanoma by scalpel versus CO2 laser beam.

A retrospective study was carried out on 219 patients who underwent surgical treatment of a malignant melanoma. A scalpel was used in 96 patients in group 1 and CO2 laser beam was used in 123 patients in group 2. The average length of hospitalization for group 2 was longer (16.3 versus 12.8 days for group 1). This was due to failure of the skin graft; 32.5 per cent in group 2 versus 15.6 per cent in group 1 (p = 0.005). The accumulative rate of recurrence for both groups was almost the same although there were significant differences according to the various parameters. Male patients in group 2 had a significantly higher rate of recurrence as compared with female patients in the same group (p less than 0.001) and male patients in group 1 (p = 0.002). In both groups, there was a significantly higher rate of recurrence for ulcerated primary lesions and those lesions more than 1.6 millimeters thick (p = 0.05). Patients in group 2, with lesions more than 3 millimeters in thickness, had a higher rate of recurrence than those in group 1 (54.6 versus 40.6 per cent). In both groups, patients who underwent elective regional dissection of lymph nodes had a lower rate of recurrence (19.4 per cent) than those patients who did not undergo dissection (53.6 per cent) (p = 0.001). It is suggested that thermal damage to the blood and lymph vessels incurred during laser excision may be more extensive than has been reported. These damaged walls may cause the higher rate of distal metastases of malignant melanoma from a primary lesion more than 1.6 millimeters in thickness; primarily in male patients.

Female↗
PubMed1980

Angulated bone peg.

The use of an angulated bone peg in arthrodesis of a digital joint is presented. The technique was demonstrated in two patients with severe bone loss. A bone graft was fashioned into an angulated peg of the desired angle and size and inserted in both sides of the gap. The suggested technique preserves the finger's length, maintaining the necessary angulation, and provides adequate fixation.

Adult↗