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Newton-Wellesley Hospital

2014 Washington Street

Newton, MA 02462

617-243-6000

Open 24 hours
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Ambulatory Care Center - Natick

307 W Central St

Natick, MA 01760

617-243-5345

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Ambulatory Care Center - Newton

159 Wells Ave

Newton Centre, MA 02459

617-243-5777

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Ambulatory Care Center - Walpole

111 Norfolk Street

Walpole, MA 02081maps

617-243-5345

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Ambulatory Care Center – Wellesley

978 Worcester Road (rte 9)

Wellesley, Massachusetts 02482

781-235-5200

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Maxwell Blum Emergency Pavilion

2014 Washington Street

Newton, MA 02462

617-243-6000

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Outpatient Surgery Center - Wellesley

25 Washington Street

Wellesley, Massachusetts 02481

617-219-1520

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9 Hope Ave

Waltham, MA 02453

617-243-5590

Monday through Saturday: 9:00 am to 7:00 pm

Sunday: 9:00 am to 2:00 pm

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Knee Replacement Surgery
Classes and Resources  /  Patient Guides and Forms  /  Joint Replacement Surgery Patient Guide  /  Knee Replacement Surgery
617-243-6000

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  • About Joint Replacement Surgery
    • Hip Replacement Surgery
    • Knee Replacement Surgery
  • Preparing for Surgery
    • Medication Guidelines
    • Day Before Surgery
  • Joint Replacement Care Team
  • Hospital Stay
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  • Joint Replacement FAQs

Total Knee Replacement Surgery Near Boston

The knee joint is a hinge joint that bends (flexion) and straightens (extension). It is formed by three bones; the lower end of the femur (thigh bone), the upper end of the tibia (shin bone) and the patella (knee cap). See Figure 1.

Daigram of the knee joint

Ligaments (bands of tissue) connect the bones and guide the motion. In a healthy knee joint the ends of the bones are covered with articular cartilage, which allows smooth pain free motion. A common reason for knee replacement surgery is related to the wearing away of cartilage leading to pain and limited mobility.

Total knee replacement, also called total knee arthroplasty (TKA), is performed with the goal of increasing mobility and lessening pain.

During knee replacement surgery, the surgeon makes an incision over the affected knee to expose the knee joint. The surgeon then moves aside the patella (kneecap) to reach the joint surfaces.

The surgeon shapes the lower end of the femur and the upper end of the tibia, in preparation for the prosthetic implants. The implants are designed to completely replace the surfaces of the knee joint . If cement is used, it is placed on the ends of the femur and the tibia. The implants are inserted into the ends of those bones. A plastic “button” may be attached to the undersurface of the kneecap to replace the arthritic surface. In some cases, replacement of the kneecap is not necessary. A drain tube may be placed into the wound, and the wound is closed. A bandage is applied.

Unicompartmental Knee Replacement Procedure

Another procedure to repair knees is called a unicompartmental knee replacement. This procedure is done when damage to the knee is limited to one side of the joint, a condition called single compartment degenerative disease. In this procedure, the worn portion of the knee joint is resurfaced while the remainder of the knee joint is left unchanged.

The procedure is done through a shorter incision than a regular knee replacement. The materials used are the same, but the prostheses are smaller than the ones used for regular knee replacement. The operative time is about the same. Your activity progression may be quicker.

To learn more about joint replacement surgery or make an appointment, please call us at 855-KNEE-HIP (855-563-3447) or email us.

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Newton-Wellesley Hospital

2014 Washington Street
Newton, MA 02462
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617-243-6000

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