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1.RECONSTRUCTION OF AN ANAL SPHINCTER USING THE GLUTEUS MAXIMUS MUSCLE.

Sang Young JUNG ; Bong Soo RYU ; Myung Ju LEE ; Jeong Yeol YANG ; Jung Yong KIM

Journal of the Korean Society of Plastic and Reconstructive Surgeons 1997;24(3):608-613

Anal incontinence following pelvic trauma, surgery, or neurologic disorders has significant medical and social implication. Both Chetwood in 1902 and Bistom in 1944 utilized coccygeal origin portion of the gluteus maximus muscle for the anal sphincter reconstruction. The gluteus maximus muscle is a broad, fan-shaped muscle with a wide origin from the ilium sacrum and coccyx and a narrow insertion along the iliotibial band of the lateral femur. Its blood supply is from the inferior gluteal artery and its innervation is from L-5, S-1 roots by means of the inferior gluteal nerve Incisions are placed at the inferior border of the ischial tuberosity. Subcutaneous tunnels are created about the rectum and gluteal and perirectal incisions. Two overacting slings are being created Their opposing pull creates sphincter or valve effect about the distal rectum. We have experienced 2 cases of irregular, deep soft tissue defects of the perianal region requiring muscle coverage with the gluteus maximus muscle overlapping slings. We think the use of the gluteus maximus muscle is one of the most useful method for reconstruction of the anal sphincter mechanism.
Anal Canal* ; Arteries ; Coccyx ; Femur ; Ilium ; Nervous System Diseases ; Rectum ; Sacrum

Nerve conduction studies help delineate the extent and distribution of the neural lesion. The nerve conduction was studied on upper (median, ulnar and radial nerves) and lower (personal, posterior tibial and sural nerves) extremities in 83 healthy subjects 23 to 66 years of age, and normal values were established (Table 1). The mean motor terminal latency (TL): median, 3.6 (±0.6) milliseconds; ulnar, 2.9 (±0.5) milliseconds; radial nerve, 2.3 (±0.4) milliseconds. Mean motor nerve conduction velocity (MNCV) along distal and proximal segments: median, 61.2 (±9.1) (W-E) and 57.8 (±13.2) (E-Ax) meters per second; ulnar, 63.7 (±9.1) (W-E) and 50.6 (±10.0) meters per second. Mean sensory nerve conduction velocity (SNCV): median, 34.7 (±6.7) (F-W), 63.7 (±7.1) (W-E) and 62.8 (±12.3) (E-Ax) meters per second; ulnar, 38.0 (±6.7) (F-W), 63.4 (±7.5) (W-E) and 57.0 (±10.1) (E-Ax) meters per second; radial, 45.3 (±6.8) (F-W) and 64.2 (±11.0) (W-E) meters per second; sural nerve, 43.4 (±6.1) meters per second. The amplitudes of action potential and H-reflex were also standardized. Mean H latency was 28.4 (±3.2) milliseconds. And, the fundamental principles, several factors altering the rate of nerve conduction and clinical application of nerve stimulation techniques were reviewed.
Action Potentials ; Adult* ; Extremities ; H-Reflex ; Healthy Volunteers ; Humans ; Neural Conduction* ; Radial Nerve ; Reference Values ; Sural Nerve