Ramstedt operation. Longitudinal incision in the anterior wall of the pylorus to the level of submucosa; for treatment of stenosis; also called Fredet–Ramstedt operation.
Rastelli procedure. Repair of transposition of great vessels, pulmonary stenosis, and ventricular septal defect.
Ray amputation. Amputation of a toe and part of the corresponding metatarsal bone.
Raz procedure. Surgical correction of urethral and bladder neck hypermobility by anterior suspension; approach is through the vagina; for treatment of female stress incontinence.
Reed technique. Shortening of the circumference of posterior leaflets in a mitral annuloplasty to treat
mitral incompetence.
Ridell operation. Sinusotomy with removal of anterior and inferior walls of the frontal sinus.
Ripstein operation. Proctopexy for rectal prolapse using a transabdominal approach and a mesh sling to secure the bowel.
Risser jacket. Hinged plaster or fiberglass and turnbuckle removable cast that extends from chin or upper chest to hips and, in some cases, one leg to the knee; the cast immobilizes the patient’s spine and is a treatment for scoliosis.
Ritgen maneuver. Delivery of a fetal head by pressing on the perineum behind the anus so that the fetal head extends upward and forward through the vulva between contractions.
Ross procedure. Total aortic root replacement with pulmonary valve autograft for aortic valve stenosis; pulmonary valve receives homograft valve.
Roux-en-Y anastomosis. Y-shaped anastomosis of the small intestine; the small intestine is severed, and the distal end of the intestine is attached to the upper stomach while the proximal end of the small intestine is sutured end-toside to the distal end of the intestine.
Rubens flap. Deep circumflex iliac artery perforator flap for breast reconstruction; a fat-pad free-flap alternative to transverse rectus abdominus myocutaneous flap.