Spine Surgery

Back pain and neck pain are the common symptoms of today's Hi Tech era. It can occur due to many reasons like, :
1. Prolapse intervertebral disc
2. Fractures of Vertebrae
3. Spondylosis
4. Spondylolisthesis
5. Tumours of spine

There are different modalities of treatment of above disorders like
• Conservative treatment: rest, analgesics, belt physiotherapy
• Injections: like nerve roots block and epidermal injections


Spinal injections: Spinal injections are used in two ways. First, they can be performed to diagnose the source of back, leg, neck, or arm pain (diagnostic). Second, spinal injections are used as a treatment to relieve pain (therapeutic). Most spinal injections are performed as one part of a more comprehensive treatment program. Simultaneous treatment nearly always includes an exercise program to improve or maintain spinal mobility (stretching exercises) and stability (strengthening exercises).


Procedure: Spinal injections are performed under x-ray guidance, called fluoroscopy. This confirms correct placement of the medication and improves safety. To do this, a liquid contrast (dye) is injected before the medication. If this contrast does not flow in the correct location, the needle is repositioned and additional dye is injected until the correct flow is obtained. The medication is not injected until the correct contrast flow pattern is achieved.

Types Of Spinal Injections
Epidural Injections: Epidural injections are used to treat pain that starts in the spine and radiates to an arm or leg. Arm or leg pain often occurs when a nerve is inflamed or compressed ("pinched nerve").


Epidural injections involve injecting an anesthetic and an anti-inflammatory medication, such as a steroid (cortisone), near the affected nerve. This reduces the inflammation and lessens or resolves the pain. This type of epidural injection is a therapeutic one. For diagnostic purposes, an epidural spinal injection can be done at a very specific, isolated nerve to determine if that particular nerve is the source of pain. Sometimes only an anesthetic is injected. The immediate response to the injection is closely monitored. If the pain is completely or nearly completely relieved, then that specific nerve is the primary cause of the pain symptoms. If there is little pain relief, then another source of pain exists.

Facet Joint Injections:


Facet joint injections can also be done for both diagnostic and therapeutic reasons. These types of injections are often used when pain is caused by degenerative/arthritic conditions or injury. They are used to treat neck, middle back, or low back pain. The pain does not have to be exclusively limited to the midline spine, as these problems can cause pain to radiate into the shoulders, buttocks, or upper legs.


For diagnostic purposes, facet joints can be injected in two ways: injecting anesthetic directly into the joint or anesthetizing the nerves carrying the pain signals away from the joint (medial branches of the nerve). If the majority of pain is relieved with anesthetic into the joint, then a therapeutic injection of a steroid may provide lasting neck or low back pain relief. If anesthetic injections indicate that the nerve is the source of pain, the next step is to block the pain signals more permanently. This is done with radiofrequency ablation, or damaging the nerves that supply the joint with a "burning" technique.

Sacroiliac Joint Injections:


Sacroiliac joint injection in the pelvis. Sacroiliac joint (SI joint) injections are similar to facet joint injections in many ways. The SI joints are located between the sacrum and ilium (pelvic) bones. Problems in the SI joints have been shown to cause pain in the low back, buttock, and leg. Typically, one joint is painful and causes pain on one side of the lower body. It is less common for both SI joints to be painful at the same time. This joint can also be injected for both diagnostic and therapeutic purposes. Anesthetizing the SI joint by injection under X-ray guidance is considered the gold standard for diagnosing SI joint pain. A diagnostic injection of the sacroiliac joint with anesthetic should markedly diminish the amount of pain in a specific location of the low back, buttock, or upper leg. A therapeutic injection will typically include a steroid medication, with the goal of providing longer pain relief.

Provocation Diskography: Provocation diskography is a type of spine injection done only for diagnosis of pain. It does not have any pain relieving effect. In fact, it is designed to try to reproduce a person's exact or typical pain. This is to find the source of longstanding back pain that does not improve with comprehensive, conservative treatment. It can severely aggravate the existing back pain. Diskography is performed much less commonly than the other types of spinal injections reviewed above. It is often used only if surgical treatment of low back pain is being considered. The information gained from diskography can assist in planning the surgery. Diskography involves stimulating and "pressurizing" an intervertebral disk by injecting a liquid into the jelly-like center (nucleus pulposus) of the disk. More than one disk is injected in order to distinguish a problem disk from one without symptoms. Criteria are used to identify a painful disk by provocation discography, including the type and location of pain and the appearance of the disk on an X-ray after the procedure.

Complications:
Spinal injection procedures are generally safe procedures. If complications occur, they are usually mild and self-limited. The risks of spinal injections include, but are not limited to the following:
• Bleeding
• Infection
• Nerve injury
• Arachnoiditis
• Paralysis
• Avascular necrosis
• Spinal headache
• Muscle weakness
• Increased pain

Common side effects from steroids include:
• Facial flushing
• Increased appetite
• Menstrual irregularities
• Nausea
• Diarrhea
• Increased blood sugar

Some people are not good candidates for spinal injections. These include people with:
• Skin infection at the site of needle puncture
• Bleeding disorder or anticoagulation
• Uncontrolled high blood pressure or diabetes
• Allergy to contrast, anesthetics, or steroids

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