Endoscopic Discectomy

You may be a candidate if a herniated disc seen on MRI is pinching a nerve and causing leg or arm pain, numbness or weakness that has not improved after about 6 to 12 weeks of physical therapy, medicines and activity changes^[6]. The herniation must be in a position the endoscope can reach safely. People whose main problem is back pain without nerve symptoms, or who have spinal instability, usually need a different plan.

Neither is clearly better for everyone — both remove the fragment pressing on the nerve. Microdiscectomy uses a microscope and a small open incision; endoscopic discectomy works through a narrower tube with a camera. In a large randomized trial, endoscopic discectomy relieved leg pain at least as well, with less blood loss and earlier mobilization^[1]. A Cochrane review found minimally invasive methods may carry a slightly higher re-herniation risk^[4].

Most people find it manageable, with soreness at the small incision for several days. Depending on the route, you will have local anesthetic with sedation — which lets you tell the surgeon if a nerve is irritated — or general anesthesia. Many patients notice leg or arm pain easing soon after the fragment is removed, although a temporary flare of nerve pain can occur.

Most people walk the same day and go home within hours. A general guide for discectomy is light activity at about two weeks, routine activities at about six weeks and strenuous work or contact sports at about 12 weeks^[14]. Desk workers often return sooner than people with physical jobs. Your surgeon will adjust this to your level, approach and job, and a physical therapy program helps you rebuild strength.

Discectomy generally works well for sciatica caused by a herniated disc, with reported success rates between 60% and 90%^[14]. In one randomized trial, 82% of patients had no leg pain after surgery and 14% had only occasional pain^[2]. Numbness and weakness may take months to improve and do not always resolve completely, especially if they were present for a long time before surgery.

Yes. Because most of the disc is left in place, a new fragment can push out at the same level, which happens in roughly 5% to 15% of discectomies^[14]. Following your lifting restrictions in the first weeks and keeping up core-strengthening exercises may lower the risk. A repeat herniation can often be treated with another endoscopic discectomy, though a third operation at the same level may lead to a fusion discussion^[6].

Serious complications are uncommon. Possible problems include a temporary flare of leg pain or tingling, a tear in the lining around the nerves with a spinal fluid leak, nerve injury, infection, bleeding, blood clots and reactions to anesthesia^[14]. Minimally invasive discectomy has been associated with a lower risk of wound infection than standard surgery^[4]. We review your personal risks at the consultation.

Bring your MRI and a list of all medicines and supplements. Because this is surgery, many blood thinners need to be paused for a set time beforehand^[10] — but never stop one without approval from the doctor who prescribed it. You may need blood tests or medical clearance, will be asked not to eat beforehand, and must arrange an adult to take you home.

Medicare and most commercial plans cover discectomy for a herniated disc with nerve symptoms when it is medically necessary, usually with prior authorization. Policies for the endoscopic technique and annuloplasty vary, and Medicare does not cover thermal intradiscal procedures^[7]. New York workers’ compensation guidelines accept open, micro- or endoscopic discectomy after 6 to 12 weeks of conservative care^[6]; no-fault follows its own rules. We verify benefits first.

Many herniated discs improve with time, physical therapy and anti-inflammatory medicine. An epidural steroid injection can calm an irritated nerve while the disc heals. Because surgery mainly speeds up recovery rather than changing one-year results for most people^[9], waiting is often reasonable if symptoms are tolerable and there is no worsening weakness. If leg pain persists after surgery, spinal cord stimulation may be an option.

No. Endoscopic discectomy lets the surgeon see and remove the actual fragment pressing on the nerve. Needle-based techniques such as nucleoplasty, laser discectomy and disc coblation remove or shrink disc material without direct vision, and New York’s workers’ compensation guidelines do not recommend them for back or nerve pain^[6]. A laser or radiofrequency probe may still be used during an endoscopic discectomy to seal the annulus.

No hospital stay is usually needed: endoscopic discectomy is performed at an affiliated ambulatory surgery center, and most patients go home the same day. You cannot drive after sedation or anesthesia, so bring an adult. Most people drive again once they are off prescription pain medicine and can turn and brake comfortably.