What is the difference between x-rays, MRI, and CT scan?
X-rays are a type of radiation, and when they pass through the body, dense objects such as bone block the radiation and appear white on the x-ray film, while less dense tissues appear gray and are difficult to see. X-rays are typically used to diagnose and assess bone degeneration or disease, fractures and dislocations, infections, or tumors.
Organs and tissues within the body contain magnetic properties. MRI, or magnetic resonance imaging, combines a powerful magnet with radio waves (instead of x-rays) and a computer to manipulate these magnetic elements and create highly detailed images of structures in the body. Images are viewed as cross sections or “slices” of the body part being scanned. There is no radiation involved as with x-rays. MRI scans are frequently used to diagnose bone and joint problems.
A computed tomography (CT) scan (also known as CAT scan) is similar to an MRI in the detail and quality of image it produces, yet the CT scan is actually a sophisticated, powerful x-ray that takes 360-degree pictures of internal organs, the spine, and vertebrae. By combining x-rays and a computer, a CT scan, like an MRI, produces cross-sectional views of the body part being scanned. In many cases, a contrast dye is injected into the blood to make the structures more visible. CT scans show the bones of the spine much better than MRI, so they are more useful in diagnosing conditions affecting the vertebrae and other bones of the spine.
Should I apply ice or heat to an injury?
What is the difference between a sprain and a strain?
A strain occurs when a muscle is stretched or torn. A sprain occurs when a ligament is stretched or torn.
Strains are often the result of overuse or improper use of a muscle, while sprains typically occur when a joint is subjected to excessive force or unnatural movements (e.g., sudden twists, turns, or stops). Sprains can be categorized by degree of severity:
- A first-degree sprain stretches the ligament but does not tear it. Symptoms include mild pain with normal movement.
- A second-degree sprain is characterized by a partially torn ligament, significant pain and swelling, restricted movement, and mild to moderate joint instability.
- In a third-degree sprain, the ligament is completely torn with mild to severe pain, swelling, and significant joint instability.
What is sciatica?
In the low back, nerves join to form the sciatic nerve, which runs down into the leg and controls the leg muscles. Sciatica is a condition that may cause radiating pain, numbness, tingling, and/or muscle weakness in the leg but originates from nerve root impingement in the lower back. Nerve impingement is most often caused by a herniated disk or spinal stenosis.
What is spinal stenosis?
Degenerative disk disease is a general term applied to back pain that has lasted for more than three months. It is caused by degenerative changes in the intervertebral disks in the spine and can occur anywhere in the spine: low back (lumbar), mid-back (thoracic), or neck (cervical).
Under the age of 30, these disks are normally soft, and they act as cushions for the vertebrae. With age, the material in these lumbar disks becomes less flexible and the disks begin to erode, losing some of their height. As their thickness decreases, their ability to act as a cushion lessens. The less dense cushion now alters the position of the vertebrae and the ligaments that connect them. In some cases, the loss of density can even cause the vertebra to shift their positions. As the vertebrae shift and affect the other bones, the nerves can get caught or pinched and muscle spasms can occur.
Degenerative disk disease is primarily a result of the normal aging process, but it may also occur as a result of trauma, infection, or direct injury to the disk. Heredity and physical fitness may also play a part in the process.
What is degenerative disk disease?
Degenerative disk disease is a general term applied to back pain that has lasted for more than three months. It is caused by degenerative changes in the intervertebral disks in the spine and can occur anywhere in the spine: low back (lumbar), mid-back (thoracic), or neck (cervical).
Under the age of 30, these disks are normally soft, and they act as cushions for the vertebrae. With age, the material in these lumbar disks becomes less flexible and the disks begin to erode, losing some of their height. As their thickness decreases, their ability to act as a cushion lessens. The less dense cushion now alters the position of the vertebrae and the ligaments that connect them. In some cases, the loss of density can even cause the vertebra to shift their positions. As the vertebrae shift and affect the other bones, the nerves can get caught or pinched and muscle spasms can occur.
Degenerative disk disease is primarily a result of the normal aging process, but it may also occur as a result of trauma, infection, or direct injury to the disk. Heredity and physical fitness may also play a part in the process.
What are muscle spasms?
When muscles become inflamed, they can also spasm, or contract tightly, as a response to injury. While they are the body’s way of protecting itself from further injury, they often produce excruciating and often debilitating pain. Muscle spasms are common in the low back (lumbar) muscles.
What is arthritis?
The most common form of arthritis, osteoarthritis, can affect any joint in the body, but most often afflicts the knees, hips, and fingers. Most people will develop osteoarthritis from the normal wear and tear on the joints through the years. Joints contain cartilage, a rubbery material that cushions the ends of bones and facilitates movement. Over time, or if the joint has been injured, the cartilage wears away and the bones of the joint start rubbing together. As bones rub together, bone spurs may form and the joint becomes stiff after long periods of activity or inactivity.
What is a bulging/ruptured/herniated disk?
The spinal vertebrae are separated by flexible disks of shock absorbing cartilage. These disks are made of a supple outer layer with a soft jelly-like core (nucleus). If a disk is compressed, so that part of it intrudes into the spinal canal but the outer layer has not been ruptured, it may be referred to as a “bulging” disk. This condition may or may not be painful and is extremely common.
Herniated disks are often referred to as “slipped” or “ruptured” disks. When a disk herniates, the tissue located in the center (nucleus) of the disk is forced outward. Although the disk does not actually “slip,” strong pressure on the disk may force a fragment of the nucleus to rupture the outer layer of the disk.
If the disk fragment does not interfere with the spinal nerves, the injury is usually not painful. If the disk fragment moves into the spinal canal and presses against one or more of the spinal nerves, it can cause nerve impingement and pain.
If the injured disk is in the low back, it may produce pain, numbness, or weakness in the lower back, leg, or foot. If the injured disk is in the neck, it may produce pain, numbness, or weakness in the shoulder, arm, or hand.
What is radiculopathy/nerve impingement?
Radiculopathy refers to a condition in which the spinal nerve roots are irritated or compressed. Many people refer to it as having a “pinched nerve.” Lumbar nerve impingement indicates that the nerve roots in the lower spine are involved, while cervical radiculopathy is associated with nerve roots in the neck. Nerve impingement is most often caused by a herniated disk or spinal stenosis.
What is physical therapy?
Physical therapy is the treatment of musculoskeletal and neurological injuries to promote a return to function and independent living. Physical therapy incorporates both exercise and functional training. Exercise restores motion and strength while functional training facilitates a return to daily activities, work, or sport.
What is a tendon? ligament? cartilage?
A tendon is a band of tissue that connects muscle to bone. A ligament is an elastic band of tissue that connects bone to bone and provides stability to the joint. Cartilage is a soft, gel-like padding between bones that protects joints and facilitates movement.
What is a cortisone/corticosteroid injection?
Cortisone is a steroid that is produced naturally in the body. Synthetically-produced cortisone can also be injected into soft tissues and joints to help decrease inflammation. While cortisone is not a pain reliever, pain may diminish as a result of reduced inflammation. In orthopaedics, cortisone injections are commonly used as a treatment for chronic conditions such as bursitis, tendinitis, and arthritis.
What is an epidural?
An epidural is a potent steroid injection that helps decrease the inflammation of compressed spinal nerves to relieve pain in the back, neck, arms or legs. Cortisone is injected directly into the spinal canal for pain relief from conditions such as herniated disks, spinal stenosis, or radiculopathy. Some patients may need only one injection, but it usually takes two or three injections, given two weeks apart, to provide significant pain relief.
What are NSAIDs and how do they work?
Non-steroidal anti-inflammatory drugs (NSAIDs) are non-prescription, over-the-counter pain relievers such as aspirin, ibuprofen, and naproxen sodium. They are popular treatments for muscular aches and pains, as well as arthritis.
NSAIDs not only relieve pain, but also help to decrease inflammation, prevent blood clots, and reduce fevers. They work by blocking the actions of the cyclooxygenase (COX) enzyme. There are two forms of the COX enzyme. COX-2 is produced when joints are injured or inflamed, which NSAIDS counteract. COX-1 protects the stomach lining from acids and digestive juices and helps the kidneys function properly. This is why side effects of NSAIDs may include nausea, upset stomach, ulcers, or improper kidney function.
Do I need to do anything special the day or night before surgery?
Someone from the surgery center or hospital will call you to discuss pre-operative instructions. They usually include the following:
- Do not eat or drink anything, including water, after midnight the day of your surgery. You may brush your teeth, taking care not to swallow any water.
- Follow your doctor’s orders regarding the taking of any medications the night before or the day of your surgery.
- Refrain from smoking after midnight the day of your surgery.
- Notify your surgeon if there is any change in your physical condition, such as a cold, fever or flu symptom.
- If there is a chance you are pregnant, please notify your surgeon immediately.
When should I arrive at the hospital/surgery center?
Arrive promptly at the time specified by the surgery scheduler. If you are having surgery at an outpatient surgery center, you will usually be asked to arrive one hour before your scheduled surgery. Times may differ if you will be admitted to the hospital prior to surgery. Most pre-operative blood, lab or paper work is preformed prior to the day of your surgery.
What should I wear the day of my surgery?
Bathe or shower the morning of surgery but do not apply any makeup. Wear low heeled, comfortable shoes and loose, comfortable clothing such as t-shirts, button-down shirts, sweat pants or baggy shorts that will fit over bandages or dressings following surgery. Do not wear contact lenses or jewelry.
What are the most common complications of orthopedic surgery?
Most patients will not encounter problems after orthopaedic surgery. As with any surgery, however, there are potential risks, including: reaction to anesthesia, bleeding, infection, blood clots, nerve damage, lack of full range of motion, development of arthritis, scar formation, or re-injury of the joint or soft tissue.
How long will surgery take?
The length of surgery depends on the procedure being performed, the surgeon, and the method of surgery (e.g., minimally-invasive arthroscopy or a more invasive open incision). Arthroscopy may take anywhere from 45 minutes to a few hours.
What kind of anesthesia will I receive?
The four main types of anesthesia include general, regional, monitored, and local. The type of anesthesia you will receive is influenced by one or more of the following factors:
- The kind of surgery you are having
- Estimated length and site of the surgical procedure
- Your overall medical condition and health status
- Medications you currently take
- Your surgeon’s preference
- With general anesthesia, you are completely asleep and unconscious with total loss of sensation.
In regional anesthesia, the anesthesiology provider injects you with an anesthetic to provide numbness or loss of pain or sensation to the area of the body requiring surgery. The injection is made near a cluster of nerves and is called a nerve block. The most common types are spinal, epidural, or peripheral. You may remain awake and alert or be sedated.
If you are sedated during regional anesthesia, then you receive monitored anesthesia care, also known as MAC sedation or twilight sleep. Monitored anesthesia care involves the administration of drugs to produce sedation and analgesia (insensibility to pain without loss of consciousness). In addition, your surgeon will administer local anesthesia to the operative site.
Local anesthesia is an injection that provides numbness to a small area and is used primarily for minor surgery. It is often administered by the surgeon and does not require the presence of an anesthesiology provider.
You will meet with your anesthesiologist prior to surgery and will have an opportunity to discuss your anesthesia options. Your anesthesiologist will inform you of the advantages, side effects, and possible complications of each. Depending upon the factors above, you may be able to participate in the decision-making and choose which method you prefer.
How long will I stay in the hospital/surgery center?
The time you spend in the hospital or surgery center will vary depending upon the type of surgery performed, the type of anesthesia that was given, and your individual needs. If surgery is performed in an outpatient surgery center, most patients are discharged within one to three hours after surgery.
What are the most common complications of orthopedic surgery?
Most patients will not encounter problems after orthopaedic surgery. As with any surgery, however, there are potential risks, including: reaction to anesthesia, bleeding, infection, blood clots, nerve damage, lack of full range of motion, development of arthritis, scar formation, or re-injury of the joint or soft tissue.
What medications should I stop taking prior to surgery?
Your surgeon and anesthesiologist will determine what medications you should stop taking before surgery, when they should be stopped, and when you can resume taking them after surgery.
What happens after surgery?
You will be taken to the recovery room and monitored for a period of time. After that you will be taken to a holding room (if in an outpatient surgery center) or to a patient room if you have been or are being admitted to the hospital.
If your operation was in a surgery center, a nurse will review post-operative home care instructions with you, as well as explain any special instructions provided by your surgeon regarding diet, rest, medications, when to follow up with your doctor, and how to use any durable medical equipment such as a sling or crutches your doctor may have ordered.
When you follow up with your doctor, he or she will discuss additional post-operative instructions such as rehabilitation, when stitches may be removed, when you can drive or return to work or school, how long you should use crutches or a sling, how long you should take pain medications, and more.