1,253 articles
Stapled hemorrhoidopexy
Stapled hemorrhoidopexy, also known as the procedure for prolapse and hemorrhoids (PPH), is a surgical procedure that repositions prolapsing internal hemorrhoids with a circular stapler, causing less pain but more recurrence than excisional hemorrhoidectomy.
Stent graft implantation
Stent graft implantation is an endovascular procedure in which a fabric-covered metal scaffold is placed inside a blood vessel to exclude aneurysms, first reported by Juan Parodi in 1991.
Stent implantation
Stent implantation is a percutaneous procedure in which a small metal mesh tube is expanded inside a narrowed coronary artery to hold the vessel open and restore blood flow.
Stent retriever thrombectomy
Stent retriever thrombectomy is an endovascular procedure that removes a clot from a cerebral artery by deploying a stent-like mesh across it and withdrawing the device.
Stereotaxy
Stereotaxy is a neurosurgical technique that uses a three-dimensional coordinate system to reach targets inside the brain, used for biopsy, deep brain stimulation, and radiosurgery.
Steven Schwaitzberg
Steven Schwaitzberg is an American surgeon known for minimally invasive surgery who chaired the Department of Surgery at the University at Buffalo from 2015 until 2026.
Stoma (medicine)
A stoma, also known as an ostomy, is a surgically created opening that connects a hollow organ such as the bowel or urinary tract to the abdominal surface.
Strabismus surgery
Strabismus surgery adjusts the position or tension of the extraocular muscles to realign eyes that point in different directions, improving binocular vision, stereoacuity, and head posture.
Subchondral Arthroplasty
Subchondral arthroplasty (Arthroplasty, Subchondral, MeSH D054544) is the group of marrow-stimulation surgeries, abrasion arthroplasty, subchondral drilling, and microfracture, that perforate subchondral bone to fill cartilage defects with fibrocartilage.
Subcutaneous mastectomy
Subcutaneous mastectomy, also known as nipple-sparing mastectomy, is a surgical procedure that removes nearly all breast tissue while preserving the skin envelope and nipple-areola complex.
Sublobar resection
Sublobar resection is an operation for early-stage non-small-cell lung cancer that removes part of a lung lobe rather than the whole lobe, preserving more lung function.
Subretinal injection
Subretinal injection is a surgical procedure delivering fluid, cell suspensions, or viral vectors between the retina and retinal pigment epithelium, used mainly for retinal gene therapy.
Subscapularis repair
Subscapularis repair is a surgical technique that reattaches a torn subscapularis tendon to its footprint on the lesser tuberosity of the humerus, performed arthroscopically or open, usually with suture anchors.
Substrate ablation
Substrate ablation is a catheter-based strategy for ventricular tachycardia that modifies the scar and border-zone tissue sustaining reentry, developed for VT that is unmappable, noninducible, or hemodynamically intolerable.
Subtotal gastrectomy
Subtotal gastrectomy is an operation removing the distal 70% to 80% of the stomach, typically for distal gastric cancer, leaving a remnant reconnected by Billroth or Roux-en-Y reconstruction.
Subtotal thyroidectomy
Subtotal thyroidectomy is an operation removing most of both thyroid lobes with the isthmus, leaving a small remnant, used to treat hyperthyroidism and goiter, though guidelines now favor total thyroidectomy.
Subtraction osteotomy
Subtraction osteotomy, also called closing wedge osteotomy, is a bone-cutting procedure that removes a wedge of bone so the segments close together, realigning and shortening it.
Suburethral Slings
Suburethral slings are surgical treatments for female stress urinary incontinence, spanning the traditional pubovaginal fascial sling, the 1995 tension-free vaginal tape and other midurethral polypropylene mesh slings (retropubic or transobturator), and single-incision slings, with cure rates above 80% at five years.
Superficial parotidectomy
Superficial parotidectomy is an operation in head and neck surgery that removes the superficial lobe of the parotid gland, with its tumor, while identifying and preserving the facial nerve.
Superior capsular reconstruction
Superior capsular reconstruction is an arthroscopic shoulder technique, first reported clinically in 2013, that uses a graft to rebuild the superior capsule in massive irreparable rotator cuff tears.
Superior capsule reconstruction
Superior capsule reconstruction is a shoulder surgery for massive irreparable rotator cuff tears, using a tendon graft as a hammock to stabilize the humeral head, reduce pain, and restore motion.
Supracervical hysterectomy
Supracervical hysterectomy is an operation that removes the uterine corpus while leaving the cervix in place, used mainly for benign disorders such as fibroids and abnormal bleeding.
Supraglottoplasty
Supraglottoplasty is a surgical procedure in otolaryngology that removes or reduces abnormal supraglottic laryngeal tissue to relieve the airway obstruction caused by laryngomalacia, the most common cause of stridor in infants.
Supramalleolar osteotomy
Supramalleolar osteotomy is a joint-preserving orthopedic procedure that cuts and realigns the tibia just above the ankle to shift load onto preserved cartilage in asymmetric ankle arthritis.
Suprapubic cystostomy
Suprapubic cystostomy is a urological procedure that places a catheter through the lower abdominal wall into the bladder to drain urine, used when urethral catheterization is not possible.
Surface ablation (ophthalmology)
Surface ablation is a flapless refractive surgery technique in which the corneal epithelium is removed and an excimer laser reshapes the cornea, preferred for thin corneas and patients at risk of flap dislocation.
Surgery
Surgery: operative treatment of disease and injury, transformed by ether anesthesia (1846), Lister's antisepsis, curare (1942), the WHO safety checklist, and modern robotic, AI-assisted, and telesurgical techniques.
Surgery for idiopathic scoliosis
Surgery for idiopathic scoliosis is the operative correction of an unexplained lateral spinal curvature, by spinal fusion or, in growing children, growth-friendly implants; curves over 40° typically warrant surgery.
Surgical ablation
Surgical ablation is a treatment that destroys targeted tissue, such as liver tumors or arrhythmogenic heart tissue, in place using heat, cold, electric fields, or focused ultrasound.
Surgical anastomosis
A surgical anastomosis is an operative connection between two tubular structures, most often bowel or blood vessels, done by hand-sewn suturing, staplers, or compression implants to restore flow.