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Arthroscopy
Arthroscopy


Knee arthroscopy  - series
Knee arthroscopy - series


Definition:

Knee arthroscopy is surgery that is done to check for problems, using a tiny camera to see inside your knee. Other medical instruments may also be inserted to repair your knee.



Alternative Names:

Knee scope - arthroscopic lateral retinacular release; Synovectomy; Patellar (knee) debridement; Meniscus repair; Lateral release; Knee surgery



Description:

Three different types of anesthesia (pain management) may be used for knee arthroscopy surgery:

  • Your knee may be numbed with painkilling medicine, and you may be given medicines that relax you. You will stay awake.
  • Spinal anesthesia. This is also called regional anesthesia. The painkilling medicine is injected into a space in your spine. You will be awake but will not be able to feel anything below your waist.
  • General anesthesia . You will be unconscious and unable to feel pain.

A cuff-like device that inflates may be used around your thigh to help control bleeding during knee arthroscopy.

The surgeon will make 2 or 3 small incisions (cuts) around your knee. Saltwater (saline) will be pumped into your knee to open up the space.

A narrow tube with a tiny camera on the end will be inserted through one of the incisions. The camera is attached to a video monitor in the operating room. The surgeon looks at the monitor to see the inside of your knee. In some operating rooms, the patient can also watch the surgery on the monitor, if they want to.

The surgeon will look around your knee for problems. The surgeon may put other medical instruments inside your knee through the other small incisions. The surgeon will then repair or remove the problem in your knee.

At the end of your surgery, the saline will be drained from your knee. The surgeon will close your incisions with sutures (stitches) and cover them with a dressing. Many surgeons take pictures of the procedure from the video monitor so that afterward you can see what was found and what was done.

See also: ACL reconstruction



Why the Procedure Is Performed:

Arthroscopy may be recommended for these knee problems:

  • A torn meniscus . Meniscus is cartilage that cushions the space between the bones in the knee. Surgery is done to repair or remove it.
  • A torn or damaged anterior cruciate ligament (ACL) or posterior cruciate ligament (PCL)
  • Inflamed or damaged lining of the joint. This lining is called the synovium.
  • Misalignment of the kneecap (patella). Misalignment puts the kneecap out of position.
  • Small pieces of broken cartilage in the knee joint
  • Removal of Baker's cyst -- a swelling behind the knee that is filled with fluid. Sometimes this occurs when there is inflammation (soreness and pain) from other causes, like arthritis.
  • Some fractures of the bones of the knee


Risks:

The risks for any anesthesia are:

The risks for any surgery are:

Additional risks for this surgery include:

  • Bleeding into the knee joint
  • Damage to the cartilage, meniscus, or ligaments in the knee
  • Blood clot in the leg
  • Injury to a blood vessel or nerve
  • Infection in the knee joint
  • Knee stiffness


Before the Procedure:

Always tell your doctor or nurse what drugs you are taking, even drugs, supplements, or herbs you bought without a prescription.

During the 2 weeks before your surgery:

  • You may be asked to stop taking drugs that make it harder for your blood to clot. These include aspirin, ibuprofen (Advil, Motrin), naproxen (Naprosyn, Aleve), and other drugs.
  • Ask your doctor which drugs you should still take on the day of your surgery.
  • Tell your doctor if you have been drinking a lot of alcohol, more than 1 or 2 drinks a day.
  • If you smoke, try to stop. Ask your doctor for help. Smoking can slow down wound and bone healing.
  • Always let your doctor know about any cold, flu, fever, herpes breakout, or other illness you may have before your surgery.

On the day of your surgery:

  • You will usually be asked not to drink or eat anything for 6 to 12 hours before the procedure.
  • Take your drugs your doctor told you to take with a small sip of water.
  • Your doctor or nurse will tell you when to arrive at the hospital.


After the Procedure:

After the surgery, you will have an ace bandage on your knee over the incision dressing. Most people go home the same day they have surgery. Your doctor will give you an exercise program to follow.



Outlook (Prognosis):

Whether or not you have a full recovery after knee arthroscopy depends on what type of problem was treated.

Problems such as a torn meniscus, broken cartilage, Baker's cyst, and problems with the synovium are usually fixed easily. Many patients remain active after these surgeries.

Recovery from simple procedures is usually fast. You may need to use crutches for a while so that you do not put weight on your knee and to control pain. This will depend on what kind of surgery you had. Your doctor may also prescribe pain medicine.

Recovering from more complicated procedures will take longer. When anything in your knee is repaired or rebuilt, you may not be able to walk without crutches or a knee brace for several weeks. Full recovery may take several months to a year.

If you also have arthritis in your knee, you will still have arthritis symptoms after surgery to repair other damage to your knee.



References: Phillips BB. Arthroscopy of the lower extremity. In: Canale ST, Beatty JH, eds. Campbell's Operative Orthopaedics. 11th ed. Philadelphia, Pa: Mosby Elsevier; 2007:chap 48.


Review Date: 2/3/2009
Reviewed By: C. Benjamin Ma, MD, Assistant Professor, Chief, Sports Medicine and Shoulder Service, UCSF Dept of Orthopaedic Surgery. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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