Partial Knee Surgery

During partial knee surgery, Dr. Berger creates a small, 3- to 4-inch incision directly over the knee to reveal the end of the thigh bone, the top of the shin bone and the back of the knee cap: the arthritic knee. He begins by removing the arthritic bone on the bottom of the thigh bone. Dr. Berger removes only the section of the thigh bone affected by arthritis and does not touch the healthy side of the knee. He uses special guides as he removes the arthritic bone to help shape the bone so the prosthesis fits securely. He then removes the arthritic bone from the affected side of the top of the shin bone. Dr. Berger carefully removes any bone spurs or scar tissue that may have formed around the knee joint as a result of arthritis.

Once the arthritic bone has been removed, Dr. Berger sizes the patient’s bone to find the perfect-size prosthesis. Using sizer pieces that range in increments of millimeters he is able to create a perfect fit. When Dr. Berger is confident he has the optimal individual size, he secures the first part of the prosthesis to the end of the thigh bone using cement.

The second part of the prosthesis is cemented to the top of the shin bone. He then snaps a polyethylene liner to the top of the shin bone component. This liner acts as cartilage and facilitates smooth and fluid movement. The final piece of the prosthesis is a polyethylene liner that is cemented to the back of the knee cap.

Once all prosthesis pieces are in place, Dr. Berger tests the patient’s range of motion by manually straightening and bending the patient’s knee. He finishes the surgery by washing the inside of the knee with an antibiotic wash to prevent infection and sews up the incision. On average, the whole process takes just over an hour.

After surgery, the patient is sent to a recovery room and then to a hospital room. A few hours after surgery, the patient is examined by one of Dr. Berger’s nurses. The patient will walk down the hospital hallway and climb and descend one flight of stairs. Once the patient has been thoroughly examined and all questions have been answered, the patient is discharged from the hospital the same day of surgery.



“Two and a half weeks after surgery, I was out on the golf course driving the ball.”


“I went into surgery on the morning of June 18, 2010, and went home that afternoon.”


“I made an appointment with Dr.Berger and within 3 months I had my life back.”

Hotels and Accommodations

Outpatient Hip and Knee Surgery has partnered with several Chicago hotels to offer our patients special rates on rooms. Download list of hotels.

Frequently Asked Questions

Q. Do patients really leave the same day?

A.  All of Dr. Berger’s patients are full weight bearing the same day of surgery so the majority of patients are able to walk out of the hospital the same day.

*Find more information on the Surgical Procedures Page

Q. What type of prosthetic is used in Minimally Invasive Surgery?

A. Dr. Berger uses the same type prosthetic which is used in standard total joint replacements; these include high flex and gender specific knee prosthetics.

Q. Does Dr. Berger do the anterior hip approach?

A. In fact, Dr. Berger pioneered the anterior approach to hip replacement surgeries. Dr. Berger is the only physician in the country doing an outpatient anterior hip replacement.

Q. Is Minimally Invasive Joint Replacement Surgery right for me?

A. Dr. Berger’s minimally invasive surgery can help alleviate the pain and discomfort of arthritis. There are several surgical options for patients suffering from arthritis of the hip or knee— a consultation with Dr. Berger would allow you to discuss your surgical options or more conservative, non-surgical approaches to pain management.

Q. How can I get more information and/or schedule an appointment?

A. Please contact Andrea Sanchez at 312-432-2343 or Courtney Lyngen at 312-432-2557 or Or request an appointment online here.

Q. Can I mail x-rays and other medical information for the doctor to review?

A. Unfortunately no, Dr. Berger needs to see and examine you prior to scheduling surgery.

Q. What is the sequence of events after I decide to schedule an appointment?

A. A total of two to five visits may be required to have the surgery performed by Dr. Berger; some of these visits can be combined for our patients who live outside the Midwest. These visits may include:

  1. An initial consultation
  2. A pre-operative testing and education day
  3. SURGERY (out-of-town patients stay two to three days following surgery)
  4. One or two post-operative appointments
  5. An annual visit which would need to be repeated every year for the rest of your life
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Outpatient Hip and Knee Replacement • • 1611 W. Harrison St., Chicago, IL 60612 • 312-432-2557