Laminectomy surgery

A Leader in Orthopaedics · Spine Specialists · Convenient Location

Spinal Laminectomy - Specialty Trained Surgeon

Laminectomy is one of the most common back surgeries. During a laminectomy, a surgeon removes the rear portion of one or more spinal bones (vertebrae). Bone spurs and ligaments that are pressing on.. Lumbar laminectomy, also called open decompression, is a surgical procedure performed to treat the symptoms of central spinal stenosis or narrowing of the spinal canal. The surgery involves removal of all or part of the lamina (posterior part of the vertebra) to provide more space for the compressed spinal cord and/or nerve roots

19 Posterior Cervical Laminectomy and Fusion | Neupsy Key

Shop Best Sellers · Direct Link · Discount Prices · Best Price

  1. ectomy is a type of back surgery used to relieve compression on the spinal cord. During the procedure, your doctor will remove the la
  2. ectomy is a type of back surgery in which a surgeon removes part or all of the la
  3. ectomy surgery, the spine is approached through a 2 to 5 inch incision in the midline of the lower back. Next the left and right back muscles, called erector spinae, are dissected off the la
  4. ectomy is surgery to take out the bony arches (la
  5. ectomy is a back surgery, usually done for treatment of spinal stenosis. Spinal stenosis is a condition characterized by narrowing of the spinal canal resulting in impingement of the nerve roots causing a variety of symptoms including pain, numbness, tingling, and weakness which may or may not radiate down the lower extremities
  6. ectomy is a surgery on your back or neck to remove the la
  7. ectomy to remove the back part of one or more vertebrae. Though it's important to be as prepared as possible for any type of spine surgery, you'll also want to have a good understanding of what you can specifically expect after you have a la
Coflex Surgery for Spinal Stenosis - YouTube

What Is A Laminectomy Surgery - Don't Miss Out Better option

Top Laminectomy Surgery Sites - Top-Rated Sites For 202

  1. ectomy surgery recovery. Recovery time varies depending on the specific surgical approach, type of anesthesia, your general health, age, and other factors. Physical therapy is an essential part of la
  2. ectomy is a surgical procedure that removes a portion of a vertebra called the la
  3. ectomy, also known as decompression surgery, is a type of surgery to help release the pressure in the spinal canal and create more space. Bone spurs (if there are any) and la
  4. ectomy is a surgical procedure performed on the cervical (neck) region of the spine. The spinal canal is protected by a series of bones called vertebrae. A part of each vertebra bone called the la
  5. ectomy is a common but major surgery with significant risks and potential complications. You may have less invasive treatment options available. Consider getting a second opinion about all of your treatment choices before having a la
  6. ectomy La
  7. https://www.motionlit.com This 3D Medical Animation shows a detailed medical animation of a lumbar surgery procedure. Starting $1,299This video is an example..

A laminectomy is a surgical incision into the backbone to obtain access to the spinal cord. One of the most common reasons for laminectomy is a prolapsed or herniated intervertebral disc. Occasionally, the operation doesn't work and the original symptoms remain A lumbar laminectomy is a surgery that removes most of the bony arch of a vertebra to treat lower back pain. Lumbar laminectomy is often performed in combination with other types of back surgery, such as lumbar laminotomy and discectomy. Complications and risks of lumbar laminectomy include nerve damage, bleeding, infection, and blood clots A Laminectomy is surgical operation performed as a treatment for patients suffering from Spinal Stenosis.While typically occurring in a hospital setting, the administration of a Laminectomy is considered a fairly invasive medical procedure due to the nature of open back surgery and the removal of bone What is a laminectomy surgery? A laminectomy is a surgery in which portions of the vertebra forming the sides and/or roof of the spinal canal (including the dorsal spinous process, lamina, articular facets, and/or pedicles) are removed to expose the spinal canal, enabling the removal of ruptured disc material, tumors, abscesses, blood clots, and anything else impinging on the spinal cord


Laminectomy - Mayo Clini

A laminectomy is a kind of surgery whose aim is to decompress the spinal cord. The lamina (the bone that constitutes spinal's vertebral arch) and bone spurs are removed during the operation. Both the lamina and bone spurs can compress your spinal cord leading to: Mild or severe or back pain. Leg numbness or weakness Lumbar laminectomy is a surgical procedure to remove bony pressure on the spinal canal and spinal nerves to relieve buttock, hip, and leg pain. Occasionally disc material needs to be removed. If there is instability of your spine you may require a posterior fusion of the spine. This procedure involves taking either bone graft (from your pelvis. Laminectomies, for the purpose of relieving pressure on spinal nerves, have a good short-term success rate, explaining why the procedure is considered one of the most common spinal surgeries performed.Results tend to be mixed, however, when looking at long-term success rates. Success Rate Linked to the Reason for the Operation. Individual success rates for laminectomies depends on why your. Decompressive laminectomy is done to release pressure exerted on the roots of the nerves found on the lower back. The condition is mostly brought by old age. There are, however, other reasons your surgeon may suggest surgery. These include herniated discs, traumas, and tumors.In case you are going through persistent pain in your spine that interferes with your day to day activities, your. An open laminectomy will require a larger incision to gain access, while a minimally invasive laminectomy will require a much smaller incision, allowing the surgeon to move or push aside soft tissue. Before the surgery even begins, your pulse, breathing, temperature and blood pressure will be checked to make sure you can go under the anesthesia

The stay after the anterior surgery is approximately 2 to 5 days. What Is a Lumbar (Low Back) Laminectomy? A laminectomy is a procedure which involves removing bone of the vertebrae to allow for more space for the nerves. It relieves pressure on the nerves and decreases symptoms such as numbness, tingling, pain and weakness For a traditional open back laminectomy you should expect to be in the hospital for 2 - 5 days. This time could be extended if complications such as bleeding or infection arise. Most patients will feel pain for the first few weeks after the surgery, but you will be provided with pain narcotics that should dull it Just entered this forum today. Curious as to how you are doing now that your surgery is almost what? 18 months out. I had a Posterior Decompression Laminectomy with bone graft and fusion with instrumentation almost 8 weeks ago. I could do very little standing or walking pre-op but all was resolved post op. I started driving at 6 weeks (limited)

Laminectomy is a surgery that relieves pressure on your spinal cord and nerves. This medical procedure, also called decompression surgery, can relieve the symptoms of a too narrow spine including pain, numbness, tingling and burning Minimally Invasive Lumbar Laminectomy. see also Lumbar microendoscopic spinal decompression surgery. Minimally Invasive Lumbar Laminectomy via unilateral approach is one of the minimally invasive methods used for degenerative spinal stenosis. Bilateral decompression through unilateral approach is an effective method without instability effect, which provides sufficient decompression in the. A laminectomy performed as a minimal spinal surgery procedure is a tissue-preserving surgery that leaves more of the muscle intact and spares the spinal process. Another procedure, called the laminotomy, is the removal of a mid-portion of one lamina and may be done either with a conventional open technique or in a minimalistic fashion with the.

Laminectomy Surgery for Back Pain: Treatment, Risks, Recover

  1. ectomy; recovery at home spinal surgery lower back with numbness in left leg and foot How to treat extreme weakness in the left arm and hand after a Cervical La
  2. ectomy is the most common and successful surgery done for treatment of symptoms associated with lumbar spinal stenosis. However, it is still surgery and any surgery involves risk. Your spine surgeon will discuss these risks in detail with you, but the most common ones are bleeding, infection, injury to the nerve, scarring.
  3. ectomy and discectomy procedures are performed on different parts of the spine. The difference between a discectomy and a la
  4. ectomy Surgery for Spinal Stenosis, Bone Tumors, Spurs, Arthritis. La
  5. ectomy, you may hear it referred to as both post la
  6. otomies are performed when the surgeon requires only a small viewing area to perform surgery (Image 1). Recovery from la
  7. otomy. A la

Lumbar Laminectomy. Lumbar laminectomy is a surgical procedure most often performed to treat leg pain related to herniated discs, spinal stenosis, and other related conditions. Stenosis occurs as people age and the ligaments of the spine thicken and harden, discs bulge, bones and joints enlarge, and bone spurs (called osteophytes) form With open surgery, laminectomy is usually combined with fusion as open laminectomy alone in this condition destabilizes the spine too much. With minimally invasive laminectomy, we have treated many patients with spondylolisthesis and stenosis with decompression alone. Clinical outcomes have generally been excellent Lumbar scoliosis surgery, Spinal fusion, Laminoplasty, Spine reconstruction, Laminectomy, Lumbar diskectomy, Cervical f... usion, Cervical spine surgery, Spine tumor. Hi Jennifer, I'm scheduled for a L4/L5 Spinal Fusion with Laminectomy on Friday 09/04/2010. My car was written off when a midi-bus tried to park in my boot at 80km/h and the only plus side to the accident is that I seem to be a textbook case for this surgery, according to the South African Spine Society: I just got back into playing competitive League squash again after taking a 3 year break.

Painful broken hardware lumbar spine scoliosis surgery

Laminectomy Johns Hopkins Medicin

Surgery is reserved for those who do not gain relief from non-operative forms of treatment, patients whose symptoms are increasing or worsening, and/or patients that present with a spinal condition which indicates the need for surgery. What is a laminectomy? Laminectomy is a spinal surgical procedure that attempts to reliev A laminectomy is a surgery that involves removal of the lamina, which is the back portion of the vertebrae covering the spinal canal. The surgery is helpful for bone spurs of the spine that are commonly associated with arthritis A cervical laminectomy is a surgery on the cervical (neck) region of the spine. A part of each vertebra bone called the lamina abuts the lamina of adjacent vertebrae to form a bony, flexible tube (spinal canal). In a cervical laminectomy, the laminae of a cervical vertebra are removed to widen the spinal canal and relieve pressure on the spinal cord and nerves

Post-laminectomy syndrome is a misnomer, as it is not actually a syndrome - it is a very generalized term that is often used to describe the condition of patients who have not had a successful result with back surgery or spine surgery and have experienced continued pain after surgery Laminectomy or fusion, which one is better? Let's investigate who is a candidate for laminectomy surgery, spinal fusion surgery, and what happens during each process. What is Laminectomy? Laminectomy is a surgical procedure that removes part of or all of a lamina from a portion of your spine to relieve pressure on your nerves

A laminectomy is a surgery used to treat central spinal stenosis, or the narrowing of the spinal canal. During the procedure, a surgeon removes a portion or all of the lamina, or the posterior of the spinal vertebra to allow more space for a spinal cord and nerves that have been compressed Low-back surgery, such as a lumbar laminectomy and discectomy, can be difficult to properly rehab. By working with your doctor and physical therapist, you can be sure to improve your range of motion, strength, and functional mobility in order to return to your previous level of function quickly and safely Laminectomy. Back pain that interferes with normal daily activities may require surgery for treatment. Laminectomy is a type of surgery in which a surgeon removes part or all of the vertebral bone (lamina) to relieve compression of the spinal cord or the nerve roots that may be caused by injury, herniated disk, spinal stenosis (narrowing of the canal), or tumors Post-laminectomy syndrome (PLS), sometimes known as failed back syndrome, is a condition where a patient continues to have pain post-surgery. There is some debate over whether PLS or failed back syndrome are accurate terms, however Lumbar laminectomy is a surgery that is performed on the lower spine to treat conditions such as Spinal Stenosis, leg pain due to a herniated disc, and other similar conditions. During the surgery the spinal canal is widened, therefore relieving pressure on the spinal cord

Posterior cervical laminectomy and fusion are surgical procedures performed to relieve spinal cord and/or nerve root compression that can be caused by disorders, including degenerative disc disease, herniated disc, spinal stenosis, and spondylosis. The purpose of posterior cervical laminectomy and fusion is to reduce neck and/or arm pain and stabilize the spine Cervical Laminectomy Surgery Treatment For Neck Pain Relief. A cervical laminectomy is a surgical procedure to remove pressure on the nerves in the neck which is caused by thickened ligament and arthritis. The lamina, which is the bone forming the roof of the spinal canal, is removed in order to take pressure off of the nerves in the neck within 2 segments adjacent to laminectomy. Home to the Texas Rangers MD Ph 817-419-0303 3533 Matlock Road, Arlington, Texas, 76015 MD FAX 817-468-596 Full recovery from low back surgery depends on the procedure performed. For instance, recovery from a discectomy (when a herniated disc is removed from the spinal canal) may take anywhere from one to four weeks. On the other hand, recovery from a spinal fusion (when the soft tissue between two or more spine bones is replaced with bone or metal.

Posterior Cervical Foraminotomy Surgery Animation - YouTube

A laminectomy (lam-ih-NEK-tuh-mee) is surgery to take out the bony arches (lamina) of one or more of the bones in your back. A disk (tough sac filled with a jelly-like substance) sits between each of the bones in the back and neck. These disks act as shock absorbers. The cover of the sac may weaken and leak or bulge out Laminectomy is one of the most common procedures to decompress spinal canal in cases of narrowing secondary to a variety of conditions such as degenerative stenosis, fracture, primary and secondary spinal tumors, abscess, and deformity. direct procedures involve those techniques with visualization of the dural sac during the surgery such as. Lumbar Laminectomy Surgery Lumbar laminectomy is similar to a cervical laminectomy, just adjusted for the lumbar area of the spine. The lumbar part of the spine is the lower back, and the symptoms of lumbar stenosis affect the legs and can cause decreased mobility and weakness in one or both legs Thoracic laminectomy is a procedure performed by spine surgeons to decompress the spinal cord of the thoracic spine. Laminectomy surgery can help relieve pressure on the spinal cord caused by spinal stenosis (narrowing of the spinal canal). Spinal stenosis may cause symptoms such as pain or numbness in the legs, weakness and balance problems

Laminectomy for Lumbar Spinal Stenosis: Purpose, Procedure

  1. ectomy. Potential advantages of spinal anesthsia include a shorter anesthesia duration, decreased nausea, antiemetic and analgesic requirements, and fewer complications
  2. ectomy is a surgery that relieves compression on the spinal cord. This involves partial or complete removal of the la
  3. ectomy. Lumbar la
  4. ectomy is a surgical procedure undertaken to relieve symptoms caused by pressure (decompression surgery) on the spinal nerve roots due to stenosis or narrowing of the spinal canal
  5. ectomy are performed to help relieve pain, numbness and discomfort from pressure on nerves in the spine. With microdiscectomy, the patient is placed face-down and a tiny incision is made over the location of the herniated disc. The orthopaedic surgeon uses a retractor to remove parts of the la
  6. ectomy is a procedure often recommended for patients with spinal stenosis, which is the narrowing of the nerve pathways in the spine. Historically, a la

Your Spine Surgery: Discectomy and Laminectomy EDUCATION. Your name Surgery date Your follow-up appointment with your surgeon is: Date Time Surgeon Phone number Please bring this book to: all appointments your pre-surgery education class the hospital on the day of surgery.. LUMBAR LAMINECTOMY POST-OPERATIVE INSTRUCTIONS. 7-10 Days Post-Op Check Up. INCISION. You may shower and let the warm water run over the incision. If there is drainage, a dry gauze dressing may be applied. Do not apply any type of medication or ointment to your incision. This includes: cream, Neosporin, or peroxide

The term post-laminectomy syndrome is a catchall phrase implying pain after spine surgery. Discussion of causes is far more complex. Different clinical scenarios may have different causes. You may have had spinal surgery, recovered well, and now have developed a new and separate problem at an adjacent level Laminectomy removes most or all of the lamina. The lamina can be removed at the same time as the diskectomy. Or, you might have it taken out in a separate surgery. Artificial disk surgery The Hemilaminectomy Procedure. The goal of a hemilaminectomy is to decrease the compression on the nerve root, by decompressing the spine. This is achieved by removing portions of a herniated disc. When the compression is caused by a degenerative disease, a portion is removed on one side of the spine. During the procedure, the patient is under. 2. Laminectomy. Similar to a discectomy, a laminectomy is a decompression surgery. In a laminectomy, part of the bone in your spinal column (lamina) is cut away to expose the spinal canal. The lamina is the backside of the spinal canal that forms a cover over the spinal cord Laminectomy surgery creates space by removing a portion of the back part of the vertebrae called the lamina. Also known as decompression surgery, a laminectomy is typically performed to alleviate pain caused from compression of the nerves within the spinal canal called spinal stenosis.. Why is the minimally invasive approach so important

Pseudomeningocele - Radsource

Video: Lumbar Laminectomy Surgery for Spinal Stenosis (Open

Laminectomy: Purpose, Procedure, and Risk

A lumbar laminectomy is performed for patients with symptomatic, painful lumbar spinal stenosis occurring at multiple (three vertebrae) levels of the spine. It is performed to remove the large, arthritic bone spurs that are compressing the spinal nerves. Post-Operative Care. Most patients are usually able to go home two to five days after surgery This surgery, Lumbar Laminectomy, is the process of removing the vertebral bone to lift pressure surrounding the spinal canal. Pressure is created by things like impacted bone injury, bone overgrowth, or growing tumors. A decompressive laminectomy increases available space and therefore alleviates any pain sufferers may be experiencing LAMINECTOMY PROTOCOL Week 0 to 6: Patient Surgery Date Surgery Levels Date at 6 weeks Date at 12 weeks Information about your surgery One or more of the above procedures has been performed on your spine to relieve your symptoms. Post-operatively, you may still experience some of your pre-operative symptoms Although the outcomes did not differ significantly between the treatment groups at 1 year after surgery, the addition of lumbar fusion to laminectomy was associated with significantly greater. What Is Laminectomy? A laminectomy is the removal of the lamina (a bony structure creating a roof over the spinal canal) to relieve the pressure on nerve roots or the spinal cord. Because of this reduction of pressure, the procedure is considered a type of decompression surgery

Microdiscectomy Spine Surgery: Risks, Complications, andALIF, Mini-Open Anterior Lumbar Interbody Fusion in Reno

Laminectomy: Types, recovery, and complication

Spinal Decompression Surgery Types: Laminectomy or Laminotomy . Both procedures involve the vertebrae's lamina, which is an arch of bone that protects the spinal canal.. In a laminectomy, the lamina is removed almost entirely.; In a laminotomy, it is a partial removal.; Despite the removal, the large muscles of the back provide sustained protection for the nerves below Post Laminectomy Syndrome treatment options. A laminectomy is a surgical procedure to relieve pinched nerves.. Since the nerve is compressed, the surgical procedure is also called Decompression Surgery.. The procedure removes bone from the spinal vertebrae, the portion called the Lamina, to take the pressure off the affected. Lumbar Laminectomy Surgery. What Is a Lumbar Laminectomy? A lumbar laminectomy is a surgical procedure to remove a small portion of a vertebra, or back bone in the lower back (lumbar). Lumbar laminectomy is usually done to take pressure off the spinal cord or a spinal nerve. It may also be done to access the spinal cord, bones and discs below.

Lumbar Laminectomy Surgery Video - Spine-healt

Laminectomy is a surgery that involves the excision of a vertebral posterior arch and is commonly performed for injury to the spinal column or to relieve pressure/pain in the presence of a herniated disc. Also known as decompression surgery, the procedure may be done with or without fusion of vertebrae. Nursing Care Plans. Nursing care planning and goals for patients who underwent disc surgery. A Laminectomy is a surgery that removes the lamina in order to relieve pressure on the spinal nerves. There can be several reasons a Laminectomy surgery may be needed such as Spinal Stenosis, Herniated Discs, or Spinal Injuries. This is considered a major surgery and the last resort if conservative methods of treatment doesn't work In patients with post-laminectomy syndrome, the original spinal disorder that caused the nerve injury prior to surgery may cause neuropathic pain to return. Another type of pain that may persist after back surgery is radicular pain, or shooting pain that travels along the dermatome or sensory distribution of a nerve due to inflammation or other. Post-Operative Laminectomy/ Discectomy Exercises • These exercises will help you reduce pain and recover from your back surgery • Try to do these exercises every day for the next 6 weeks • Perform only those exercises indicated and instructed by your physiotherapist • Perform all exercises within your pain limits Nerve damage in lumbar laminectomy procedures occurs in about one in 1,000 cases, notes Ullrich. Trauma during surgery can cause permanent muscle weakness or paralysis in the affected area, but this outcome is rare, according to A. Jay Khanna, M.D., in a report published by the American Academy of Orthopedic Surgeons

Laminectomy (Discharge Care) - What You Need to Kno

Laminectomy (Lumbar) . Lumbar laminectomy is a very common and safe procedure that aims to relieve the pressure on the nerves in the lower back (lumbar spine). It is most commonly performed to relieve the pain of lumbar stenosis and spondylosis. This is a narrowing of the spinal canal that is caused by degeneration, or wear and tear, in the. Surgery. Laminectomy is the most common surgical approach to relieve spinal cord compression caused by solid tumor. Laminectomy involves removal of the bony arch, or lamina, of a vertebra. This is often combined with biopsy and/or debulking of the tumor. The advantage of laminectomy is the rapid decompression of the spinal cord Microdiscectomy, also sometimes called microdecompression or microdiskectomy, is a minimally invasive surgical procedure performed on patients with a herniated lumbar disc. During this surgery, a. Objective: To compare the two-year clinical outcomes of a prospective, randomized controlled trial of an FDA-approved interspinous spacer with the compilation of published findings from 19 studies of decompressive laminectomy for the treatment of lumbar spinal stenosis. Methods: Back and leg pain, Oswestry disability index (ODI), and Zurich Claudication Questionnaire (ZCQ) values were compared.

What is Laminectomy and How Dangerous is a Laminectomy

Patients have restrictions after lumbar decompression (laminectomy) surgery to ensure that the surgical site heals and to prevent injury. Usually, lifting is limited to no more than 10 pounds (roughly what a gallon of milk weighs) for the first two weeks. Forward-bending and twistin Laminectomy. 1. Introduction. Fracture displacement and comminution can result in spinal canal compromise and nerve root compression causing neurological deficits. Decompression can be achieved: Indirect decompression results from realignment of the fracture which can restore the patency of the spinal canal and neuroforamina. Direct.

Laminectomy Surgery - Recovery & Laminectomy Complication

Laminectomy Surgery: Decompression of Spinal Stenosis. A laminectomy—or spinal decompression surgery—is performed with a goal of alleviating or eliminating low back pain. During a laminectomy a surgeon removes one or more vertebrae from the lamina, a flat bony roof that covers and protects the posterior spinal canal Lumbar laminectomy surgery is a very common procedure that involves the removal of the lamina bone with the goal of relieving pressure on the spinal cord or nerves. How is a laminectomy performed? The procedure removes a piece of spinal bone to decompress the nerves. The approach is done from the back A laminectomy is a surgical procedure that creates space by removing a portion of the lamina, which is the back part of the vertebra that covers the spinal canal. This procedure is also known as decompression surgery. A laminectomy is typically performed to alleviate pain caused by spinal stenosis. With minimally invasive techniques, the.

What to Expect After Laminectomy Surger

You had a cervical laminectomy to relieve pressure on your spinal cord and/or the nerves in your neck. Your neck will probably feel stiff or sore. This should improve in the weeks after surgery. You may need pain medicine for a short time. Your doctor may advise you to work with a physiotherapist to strengthen the muscles around your neck and. Laminectomy surgery at BWH. Patients requiring a laminectomy or spinal stenosis treatment can receive state-of-the-art care at the Brigham and Women's Hospital. Our team is devoted to providing patient-focused, world-class medical care for patients experiencing spinal conditions due to back pain, disease or injur Laminectomy is a surgery of the spine for removal of a portion of the vertebral bone called lamina to make more space for the nerves. This procedure helps relieve pressure on the nerves and reduce the symptoms such as numbness, tingling, pain, and weakness. In the least invasive of the methods, there are small skin incisions made, back muscles. A cervical laminectomy is an operation done from the back of the neck to relieve pressure on the spinal cord and nerves. It involves carefully removing the bony roof (or laminae) of the spinal canal, as well as any soft tissue which may also be causing compression L5-S1 Laminectomy Recovery - 4 weeks! by Steve on May 29, 2013 in Lumbar Laminectomy Surgery • 11 Comments. 4 weeks ago I had back surgery (L5-S1 laminectomy). Recovery from back surgery is not a quick event. But, I can feel progress for sure. My walk to Law St. Park - a bit of a milestone

How much you can expect to pay out of pocket for back surgery, including what people paid. For patients not covered by health insurance, a laminectomy, typically used to treat spinal stenosis, a narrowing of the spine that occurs mostly in people over 50, typically costs $50,000 to $90,000 Laminectomy Lumbar Laminectomy. A laminectomy is spine surgery performed to alleviate lower back pain (lumbar pain).It works by removing all of the lamina, the back part of the vertebra that covers the spinal canal, in order to relieve pressure on the nerve roots and / or spinal cord and provide more space for them to heal and move freely The diseases of children : medical and surgical. Fig. 169.—Patterns of Splints for Spinal Caries, Laminectomy, &c. A, for fixinghead, trunk,and lower limbs; B, for dorso-lumbar caries ; c, for upper dorsal ; _D, for dorsal disease ; e, fordorso-lumbar laminectomy ; F, for fixing whole trunk and lower limbs in a case of lumbar orgluteal abscess, &c