Endoscopy refers to inserting microscopic cameras into the body through tiny incisions which throw up pictures of the inside of the body onto a screen. Endoscopy has been used for diagnostic purposes since the 1970s. Endoscopy for surgery has become popular from the 1990s.

Endoscopic spine surgery is a state-of-the-art surgery technique which involves micro incisions and minute tubes that cause almost no damage to surrounding tissues and muscles. It is a minimally invasive surgery and it is also called a pinhole surgery.

What are the advantages of endoscopic pinhole spine surgery?

There are a lot of reasons why doctors opt for an endoscopic surgery-

  It is also called Minimally Invasive Spine Surgery (MISS) because it causes little blood loss
  Recovery is almost immediate. A person can resume everyday activities within a week
  Very little pain around the surgery region so minimum pain medication is needed.
  No muscle or bone is removed.
  Since screws and rods are not used, full mobility of the spine can be restored
  The wounds are minute and do not usually require stitches and thus no ugly scars are left after the wounds heal.

What are the characteristics of an endoscopic spine surgery?

  The surgery is performed under local anaesthesia
  The person is discharged within 24 hours of the surgery
  The incisions that are made are microscopic

What are the different types of endoscopic surgery?

Endoscopic discectomy:
It is the least invasive of all spinal surgeries. It is used for treating herniated discs. Endoscopy reveals images of the spine. Through the same tunnel, surgery tools are inserted and the bulging or herniated disc is pulled out with a grasper. The wound does not always require stitches to close it.

Endoscopic Laminotomy:
This a substitute for open laminotomy. The camera helps locate exactly where the target area is. Then an incision is made below and above the lamina to relieve the pressure compressing the nerve.

Endoscopic facet rhizotomy:
With microscopic cameras, the nerves causing pain are identified and then the laser is used to numb these nerves which relieve pain. This type of surgery can also remedy a previously botched spinal surgery, facet joint arthritis or facet joint pain

Endoscopic foraminotomy:
This type of surgery again uses microscopic surgical tools guided by a tiny camera to enlarge a narrowed neuro of spinal nerve root canal to give it more room to move about without being compressed.

Endoscopic Spine Surgery & Pinhole Technique!

As life expectancy is increasing so is the incidence of vertebral body (VB) fractures now being the commonest fracture of the body. PVP is an established interventional technique in which bone cement is injected under local anaesthesia via a needle into a fractured VB with imaging guidance providing instant pain relief, increased bone strength, stability, decreasing analgesic medicines, increased mobility with improved quality of life and early return to work in days.

In this era of minimally access surgery replacing open surgeries, PVP is a novel procedure & should be in the first line of management in place of conservatism or major spine surgery for painful uncomplicated compression fracture spine.

Morbidity & consequences of spinal fracture:

Traumatic VB is a painful condition requiring bed rest restricting daily activities markedly
Left untreated it can cause DVT, increase osteoporosis, loss of VB height, respiratory & GI disturbances, emotional & social problems secondary to unremitting pain, loss of independence with high cost of rehabilitation.
High risk of primary or consequential damage to neural, bony or disc element
Increased wedging, deformity & increase incidence of adjacent VB
Chronic pain of altered spine mechanics
Uncomfortable braces & sleep disturbance because of pain & discomfort with its sequels.
Cost of surgery and hospital treatment
Cost of implants
Phobia of surgery
Prolonged recovery period & Extensive rehabilitation
Changed spinal mechanics & transition syndrome
Major surgery & anesthesia with its own complications
Results / Outcome

PVP is a novel procedure with high benefit to risk ratio, which is highly underutilized in relation to the high prevalence of the vertebral.
Different studies show an immediate pain relief in (85   90)% of patients with low complication rate ranging from (1-5)% depending upon the type of lesion.
PVP does augment height of VB but ideal would be kyphoplasty
Patient is either off medicine or on reduced doses.
Patient feels so well that he almost forgets if he had VB

Percutaneous Vertebroplasty (PVP) is an emerging interventional technique in which surgical polymethyl methacrylate bone cement is injected under local anaesthesia via a large bore needle into a vertebral body (VB) under imaging guidance providing increased bone strength, stability, pain relief, decreased analgesics, increased mobility with improved QOL and early return to work. Started in 1984 by Galibert PVP is done in host of indications.

Senile osteoporotic compression remains the commonest Indication. Other indications are Metastatic VB, Multiple myeloma VB, VB haemangioma, Vertebral osteonecrosis & for strengthening VB before major spinal surgery. The benefit has been extended to the traumatic stable uncomplicated VB compression (VCF) which is commoner in younger age group with active life profile and prime of their career where strict bed rest and acute or chronic pain are unacceptable and they are more demanding for proactive treatment approach so as to be back to work ASAP.

Discovering the fact that VB is the commonest of body, its incidence >the hip, it becomes imperative to take it more seriously. With increasing life-span there is more of aged osteoporotic population, more so due to sedentary indoor lifestyle and post menopausal osteoporosis. Diabetics, smokers & alcoholics are at higher risk of developing osteoporosis. I have seen such alcoholic patient developing six spine fractures in just three months time from a single fracture being on complete bed rest.

Quick fix of fracture spine makes patient walk back same day instead of bed rest of months together avoiding morbidity & mortality of prolonged bed rest, making bedridden patient walk, in a way bringing patient back to normal life.

In this era of MAS replacing open surgeries, PVP is a novel procedure & should be in the first line of management in place of conservatism or major spine surgery for painful uncomplicated compression.

Morbidity & consequenses of spinal 

Traumatic VB is a painful condition requiring bed rest restricting daily activities markedly.
Left untreated it can cause DVT, increase osteoporosis, loss of VB height, respiratory &
GI disturbances, emotional & social problems secondary to unremitting pain, loss of independence with high cost of rehabilitation.
High risk of primary or consequential damage to neural, bony or disc elements.
Increased wedging, deformity & increase incidence of adjacent VB
Chronic pain of altered spine mechanics.
Uncomfortable braces & sleep disturbance because of pain & discomfort with its sequels.
Morbidity and complication of spinal surgery 

Cost of surgery and hospital treatment
Cost of implants
Phobia of surgery
Prolonged recovery period & Extensive rehabilitation
Changed spinal mechanics & transition syndrome
Major surgery & anesthesia with its own complications
Preparation & Procedure:
X-ray spine in a/p & lat view. CT is more informative of bone & morphology. MRI is good for soft tissue injuries. Ask for pedicle size in all dimensions and construct a 3D image aiming needle placement and cement filling in scan room itself as rehearsal of PVP. This reduces operative time & gives better results. Conventionally PVP is done by hammering the vertebroplasty needle through the bone. Here we use light weight drill to bore through the vertebra. It is important to set the needle at exact entry site & side with right trajectory aiming the defects.

In lateral view needle should go through middle of the pedicle going up to anterior 1/3 of VB. In P/A view the needle can be in midline or paramedian depending upon & if uni/bipedicular approach is planned. Approach varies as per location of vertebra, anterolateral in cervical, costotransverse/parapedicular in thoracic & transpedicular in lumbar vertebra.

Do bone biopsy if there is any doubt about lession. Do dye test (vertebral venography). Make cement more radiopaque by adding barium /or tungsten. Inject cement with 1or2 ml luerlock syringes strictly under fluoroscope in lateral view & cross checking in P/A view. Stop injecting either there is adequate filling or at the first sight of ectopic cement leak. Keep sample cement to see for hardening. Remove needle with rotational movement before cement hardens.

Pain relief is by virtue of different mechanisms postulated :

Cementing of fragments.
Thermal neurolysis of VB nerve ending due to heat of polymerization.
Washing away of nociceptor chemicals.
Neurolytic action of liquid monomer.
By allowing early ambulation decreasing pains of immobility & bed rest.
Complications 

PVP is generally safe with low risk.
Ectopic cement leak is frequent but generally inconsequential.
Outcome 

PVP is a novel procedure with high benefit to risk ratio, which is highly underutilized in relation to the high prevalence of the vertebral
Different studies show an immediate pain relief in (85   90)% of patients with low complication rate ranging from (1-5)% depending upon the type of lesion.
PVP does augment height of VB but ideal would be kyphoplasty.
Patient is either off medicine or on reduced doses.
Patient feels so well that he almost forgets if he had VB

Vertebroplasty (PVP) / Kyphoplasty - Approach To Management Of Vertebral Body Fractures!

Spine surgery is conventionally performed as  open surgery , which means the region being worked on is opened with a long entry point to permit the surgeon to view and access the area. Technical and scientific advances have permitted more back and neck conditions to be treated with a less obtrusive surgical technique. The minimal invasive spine surgery (MISS) does not include a long cut, and it prevents causing damage to the muscles around the spine. As a rule, this causes less pain after the surgery and a speedier and healthy recovery.

Spine surgery is normally suggested when non-surgical treatments like medicinal or exercise based methods have not helped in lessening the excruciating symptoms of your back problem. Moreover, surgery is just considered if your doctor can pinpoint the correct reason of your pain, for example, a herniated circle or spinal stenosis. 

MISS is also called less obtrusive spine surgery. In these procedures, surgeons utilise particular instruments to get to the spine through little cuts. The surgery process is as follows:

During the surgery, a little entry point is made and the tubular retractor is embedded through the skin.
It is also inserted into the delicate tissues down to the spinal cord.
This makes a passage to the little range where the problem exists in the spine.
The tubular retractor holds the muscles open and is set up all through the surgery.
The surgeon gets to the spine utilising the little instruments that fit through the focal point of the tubular retractor.
Any bone or disk material that is expelled goes out from the retractor.
Any gadgets needed for the fusion process, for example, screws or rods, are embedded through the retractor.
A few surgeries require more than one retractor.
Keeping in mind the end goal to see where to put the entry point and embed the retractor, the surgeon is guided by fluoroscopy.
This strategy shows ongoing X-ray pictures of the patient's spine on a screen throughout the surgery.
The surgeon additionally utilises a microscope to enlarge the view through the retractor.
Towards the end of the procedure, the tubular retractor is expelled and the muscles come back to their original position.
This restrains the muscle damage that is more ordinarily found in open surgeries.
It is very important to talk about these risks with your doctor before your surgery or procedure.

Infection: Antibiotics are consistently given to the patient some time before, during, and regularly after the surgery to reduce the danger of infections.
Bleeding: A specific measure of bleeding is normal; however, this is not commonly dangerous.
Pain in the grafted area: Some patients will encounter surgical pain at the bone joint site.
Recurring symptoms: A few patients may encounter a repeat of their side effects.
Pseudarthrosis: Patients who tend to smoke are more prone to pseudarthrosis. This is a condition wherein there is insufficient bone formation. In case that this happens, a minor surgery may be required.
Nerve damage: It is possible that the nerves or veins might be harmed during these operations. These complications are extremely uncommon.
Blood clots: Another complication is blood clots in the legs. This poses a threat because these clots can break off and settle in the lungs.

Minimally Invasive Spine Surgery - A Guide On What To Expect?

Fractures are simply a break in a bone. They can be caused due to injury, (traumatic fractures) or a pre-existing condition like osteoporosis that causes weakening of bones (pathologic fractures). There are many ways to classify fractures. All fractures fall into the major categories of simple and compound fractures. Simple fractures are fractures where bones remain inside the skin and don t jut out. They are also called closed fractures.

Compound fractures, also called open fractures, are broken bones that penetrate through the skin. These types expose the bone and deep tissues to the environment. Compound fractures are more serious of the two. The healing here may be affected due to deep infections for which antibiotics need to be used. There are many different sub types of fractures and we re only going to skim through them here.

Comminuted fractures: Severe fractures in which a bone breaks into several smaller pieces.
Avulsion fractures: A small piece of bone is completely torn off from the main bone due to fierce pulling off a part of the body.
Other types of fractures are characterised by the many different angles the bone breaks into like transverse, oblique and spiral fractures.

Diagnosis
When a bone is broken there are symptoms like swelling that doesn t subside on its own and pain. In such a case it s imperative that one goes to a doctor for a diagnosis. Doctors can usually recognise most fractures by examining the injury and taking an X-ray. The X-ray also provides a clear idea about the type of fracture and the degree of displacement of the bone. And, it s important that the patient doesn t wait too long before approaching a doctor. This is because bones begin to heal very quickly after a fracture and the bone tissue will heal using any tissue available. This can lead to a misalignment of broken pieces of bone and cause disability and loss of function.

There are cases when X-ray may not show a fracture. This is especially common in fractures in the hip and wrist in older people. For diagnosing these, doctors will get some other tests done such as a computed tomography (CT) scan, magnetic resonance imaging (MRI), or a bone scan.

Treatments
Fractures have to be treated by doctors. The doctors set the fractured bones in their proper place and hold them there so that they can heal. Setting a bone is called "reduction." Reduction without surgery is called "closed reduction." But if the fracture is serious, it s going to require surgery with bone repositioning, called open reduction.

In extreme cases, pins, plates, screws, rods, or glue are used to hold the fractured bones in place, inside the body. Once the bone abutment has been treated, the bone is immobilised to allow the broken pieces to heal. In most cases, the fractured part is set in a rigid cast. The fractured ends of the bone can be fixed into place using metal pins connected to an external frame. This is removed after the bone has healed.

Fractures - How To Diagnose Them?

At some point in life most people experience acute pain in their lower back which is extremely painful. Pain in the spine causes a lot of discomfort and disruption in the life of an individual and hence, it is always better to get it checked on time. There are patients who even wonder when they should consult a neurosurgeon or a spine surgeon for their back pain. It is advisable that a physical examination is done by a primary care physician for low back pain before consulting a spine surgeon.

Why consult a Physical care Physician First?
The main reason to consult a primary care physician at first is that he would prescribe medications for severe lower back pain. The medications could include non-narcotic pain medications such as Ultram or non-steroidal anti-inflammatory drugs such as Motrin. The physician can even refer you to a chiropractor or for physical therapy to get relief from the back pain. Mechanical means are made use of by a chiropractor mainly to alleviate the back pain of the patient.

If the patient feels better with the physical therapy or the medications prescribed by the family doctor and is able to resume normal activities, then there is no need to see a spine surgeon. It is often recommended to take good care of the back and to exercise. A combination of ergonomics, regular stretching and improved everyday posture is beneficial as it reduces the chance of causing pain in the lower back. Exercise plays a very important role and it provides the possibility of reducing the pain.

Conservative Care for Treating Lower back Pain
It is best for patients to consult a conservative care specialist if after consulting a chiropractor they do not find any reduction in their pain and they do not want to undergo spine surgery. The conservative care specialists are well-trained in rehabilitation of musculoskeletal disorders and specialize in spine care. The role of the conservative care specialist is similar to a cardiologist who specializes in treating neurological disorders.

The specialist for spine care works along with the surgeon in a spine center to treat the lower back pain. The specialist is trained in diagnostic techniques and is capable of making use of a combination of diagnostic tests as well as injection techniques such as epidural steroid injections to diagnose the source of the lower back pain in a patient. They can even advise patients whether it is appropriate to consult a spine surgeon for surgery. Surgery is done to correct the anatomical conditions and it is performed only when non-surgical treatments are not successful in alleviating the pain of the patient.

When Is The Right Time To See A Spine Surgeon?

A broken bone is medically termed as a fracture.Fractures are linked with age as bones tend to become weak as one ages, so, the chances of a fracture occurring also increases. Fractures are usually classified into four types-
1. Closed fracture - In this type of fracture, the breaking of the bone does not result in an open wound
2. Open fracture- The opposite of closed fracture, the bone breaks through the skin. This may result in infections
3. Non-displaced fracture - in this type of fracture, the bone cracks but is not shifted out of its regular position.
4. Displaced fracture - A displaced fracture occurs when the affected bone is shifted out of its natural position.

Causes
Fractures can be caused by a number of factors, they are
1. Road accidents
2. When someone falls from a height
3. When the bone is directly exposed to a strong blow
4. When the bone is exposed to a repetitive force from activities such as sprinting
5. Osteoporosis, which is a condition where the bones become weak
6. The bones in the body tends to weaken with age, so at this time they become highly susceptible to fractures

Symptoms
1. Swelling in the area accompanied by pain
2. Limited movement of the affected joint
3. Muscle spasms
4. The affected area may also become numb

Diagnosis
The first step to diagnose a fracture is the knowing about the medical history of the patient and conducting a physical exam. The diagnosis is further confirmed by using imaging tests such as -
1. Magnetic resonance imaging (MRI) - In this procedure, images of internal body parts are taken with the help of a magnetic field and pulses of radio energy. MRIs can pick up signs of fractures very quickly, that is within the first week of injury. It is also easier to distinguish fractures from other related injuries in case of MRI.
2. X-rays -X-rays are a procedure that involves sending x-ray particles through an area to detect a fracture. Signs of a fracture may take several weeks to show up in x-rays.
3. Bone scan - In bone scans, some radioactive material is put inside the body through intravenous methods. These material tend to accumulate in the fractured area which then shows up in the images as a bright spot. If you wish to discuss about any specific problem, you can consult an Orthopedist.

How Is A Fracture Diagnosed?

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