Use of the gluteus maximus muscle as the neosphincter
for restoration of anal function after abdominoperineal resection.
This structure, which is designed to replace a tracheal segment, must be sufficiently rigid to support the proximal insertion of a neosphincter
that opens during respiration and closes during the passage of a food bolus and, at best, would include phonatory capabilities.
Basic anatomical investigation of semitendinosus and the long head of biceps femoris muscle for their posible use in electrically stimulated neosphincter
The gracilis neosphincter
operation is no longer performed in North America, Dr.
American Medical Systems (AMS), Minnetonka, MN, announced an FDA advisory panel has recommended approval of its Acticon Neosphincter
, an implantable device designed to imitate the function of the sphincter muscle and help prevent uncontrolled bowel movements.
When surgical treatment is warranted, options include occlusion, sphincteroplasty, neosphincter
, radio-frequency energy, and fecal diversion.
The Acticon Neosphincter
is another device that is gaining popularity for surgical treatment of fecal incontinence.
Basic anatomical investigation of semitendinosus and the long head of biceps femoris muscle for their possible use in electrically stimulated neosphincter
Chronic diarrhea or constipation must be corrected before the Acticon neosphincter
goes in, explained Dr.
The Acticon neosphincter
is marketed in Europe and has been approved by the Food and Drug Administration.
Only 11% of participants were able to defer defecation preoperatively, compared with more than 80% postoperatively Perhaps most impressive was the finding that more than 70% of patients rated their quality of life favorably following receipt of the Acticon neosphincter
, compared with just 19% before.
The mean score among neosphincter
users fell from 105 at baseline--indicative of daily incontinence--to 48 at 1 year, which equates to seepage only.