Dr. Steven Zaretsky
910 Grand Concourse
Ste. 1B
Bronx, NY 10451
Phone: 718-588-2689
Fax: 718-537-7798
81 Willoughby Street
4th Floor
Brooklyn,NY 11201
Phone: 718-588-2689
Fax: 718-537-7798




Our patients are very important to us.  As a result, we continually provide our patients with information about their injury or on the care they are receiving.  We have listed, below,  a series of topics which may be of interest  to you.  

If you require further information, please contact us , or call our office for an appointment.







Knee Arthroscopy


What is Knee Arthroscopy?

Knee arthroscopy is a procedure in which the doctor examines your knee with an instrument called an arthroscope. An arthroscope is a tube with a light on the end that is inserted in your knee and projects an image of the inside of your knee onto a TV monitor. The arthroscope is about the diameter of a pencil.

This procedure is used to diagnose the cause of pain, swelling, tenderness, or weakness in your knee.


What happens during the procedure?

The doctor will give you a general, regional, or local anesthetic. A general anesthetic will relax your muscles and make you feel as if you are in a deep sleep. Both local and regional anesthetics numb part of the body while you remain awake. All three types of anesthesia should keep you from feeling pain during the operation.

The doctor will then insert the arthroscope, a tube containing a saltwater solution, and a probe instrument into the lower part of your knee. He will then inject fluid into the knee.

Your doctor may find loose material in the knee, or a tear in the cartilage or ligaments. Sometimes the doctor can repair the tears and remove loose pieces of cartilage using small instruments and the arthroscope. If the problem cannot be fixed by this procedure, the doctor may recommend open knee surgery.

After the procedure the doctor will close the small openings with one or two stitches or sticky tape.


Knee Replacement


In knee replacement surgery, the damaged bone and cartilage are replaced with metal and plastic surfaces that are shaped to restore knee movement and function. The new artificial knee is called a prosthesis.The prosthesis is generally composed of two metal pieces fitted onto the ends of the tibia (shin bone) and the femur (thigh bone) and a plastic piece inserted between them to act as a bearing. Stainless steel, cobalt or chrome alloys or titanium may be used for these components. Durable, wear resistant polyethylene (plastic) is used for the bearing.  A plastic bone cement may be used to anchor the prosthesis into the bone. Some joint replacements also can be implanted without cement when the prosthesis is designed to fit and lock onto the bone directly.


ACL Reconstruction


The anterior cruciate ligament (ACL) is a stabilizing ligament that connects your thighbone to the shinbone.  Ligaments are tough, non-stretchable fibers that hold your bones together

An anterior cruciate ligament (ACL) unravels like a braided rope when it's torn and does not heal on its own. Fortunately, reconstruction surgery can help many people recover their full function after an ACL tear. 

What happens during the procedure?

Surgical treatment of the torn ACL usually involves an arthroscopic surgical reconstruction of the injured ligament.  Although a number of different types of tissue have been utilized to reconstruct the ACL, the most common type of ACL reconstruction involves harvesting the central third of the patellar tendon with a bone block at each end of the tendon graft. After performing a diagnostic arthroscopic examination of the knee, the central third of the patellar tendon is harvested.

The remaining tendon is then repaired. After harvesting the tissue, drill guides are used to place holes into the tibia (bone below the knee) and femur (bone above the knee). By placing the drill holes at the attachment sites of the original ligament, when the graft is pulled through the drill hole and into the knee, it will be placed in the same position as the original ACL.

After pulling the graft through the drill holes and into the joint to replace the torn ACL, the graft is then held in place with bioabsorbable screws or metallic screws.


Shoulder Arthroscopy


Trauma or overuse can cause the shoulders soft tissues (ligaments, tendons, muscles and cartilage) to stretch or tear. Then they can no longer provide the necessary support. A feeling of "looseness" may develop and the shoulder may "pop out" with some activities. Pain and weakness may interfere with daily activities such as work, sports, or sleep.

Shoulder arthroscopy is performed under sterile conditions following an injection of a local anesthetic into the joint and/or general anesthesia.

A small incision is made to introduce a cannula with tubing attached. This tubing is connected to bags of saline used to irrigate and fill the joint space for better viewing. It also distends the joint space allowing for easier passage of instruments. A second small incision is made to insert the arthroscope, which is attached to a camera and light source. These, in turn are attached to a T.V. monitor to view and record the findings. Pictures may be taken and saved for later reference. A third incision may be made to introduce instruments for repair and to correct injuries. They may also correct tears and remove loose bodies.


Rotator Cuff Injury


A rotator cuff injury is a strain or tear in the group of tendons and muscles that hold your shoulder joint together and help move your shoulder.

A rotator cuff injury may result from:

  • Impingement from bone spurs
  • Using your arm to break a fall
  • Falling onto your arm
  • Lifting a heavy object
  • Normal wear and tear in an older person
  • Use of your shoulder in sports with a repetitive overhead movement, such as swimming, baseball (mainly pitchers), football, and tennis, which gradually strains the tendon
  • Manual labor such as painting, plastering, raking leaves, or housework.


Shoulder Separation


What is a Shoulder Separation?

A shoulder separation occurs when you tear the ligaments that hold your collarbone (clavicle) to the joint where it meets the shoulder blade. Your collarbone may move out of its normal place and push up the skin on the top of your shoulder. Another term for shoulder separation is acromioclavicular (AC) separation or sprain.

Shoulder separations, or sprains, are graded I, II, or III, depending on how far the collarbone is separated from the shoulder. A grade I sprain has tenderness but no actual separation. A grade II sprain has slight separation of the clavicle from the shoulder, and grade III has a greater separation.

How Does it Occur?

A shoulder separation can result from a blow to your shoulder or a fall on your shoulder. It also can result from a fall on your outstretched hand or arm. It is a common injury in contact sports such as football, rugby, hockey, or lacrosse. It may occur from falling onto a hard surface, such as might happen during downhill skiing, volleyball, rock climbing, and soccer.


Total Shoulder Replacement


A total shoulder replacement is a procedure in which the doctor removes your shoulder joint and replaces it with an artificial one.

When is it used?

This procedure is done when the joint is painful and not working properly, such as with arthritis, in which the range of motion is restricted and use of the arm is limited.  It is done when other treatments have not worked.

Alternatives to this procedure include use of acetaminophen, aspirin, or other drugs for pain and inflammation.  Also, you may choose not to have treatment, recognizing the risks of your condition.  You should ask your doctor about these choices.


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