Knee Anatomy

Healthy Knee

Knee AnatomyThe healthy knee is a complex hinge joint consisting of bones and healthy cartilage. The three bones that form the knee are the thighbone (femur), shinbone (tibia), and kneecap (patella). The femur and tibia are held together by ligaments, which are strong bands of tissue that stabilize the joint.

The end of your femur can be compared to a rocking chair. It has two distinct surfaces called compartments, which rest on the tibia. The third compartment is found behind the patella. All three compartments are covered with a tough lubricating tissue called cartilage.

Cartilage acts as a natural shock absorber, preventing bone on bone contact and providing a smooth, pain-free surface for the bones to glide against. The knee also contains synovial membranes, which produce synovial fluid to help lubricate and nourish the cartilage.

Links to Orthopedic Knee Education

Click on the links below for more educational information about the knee.

Links below are provided from the Orthopaedic connection website from the American Academy of Orthopaedic Surgeons.

All patient education materials are provided by and have been reviewed by our Advisory Board of leading Orthopedic Surgeons to ensure accuracy. All materials are provided for informational purposes only and are not intended to be a substitute for medical advice from your orthopedic surgeon. Any medical decisions should be made after consulting a qualified physician.

This site includes links to other websites. takes no responsibility for the content or information contained in the linked sites.

Orthopaedic Associates of Marlborough

  • Contact:

Monday 8:00am - 7:00pm
Tuesday 8:00am - 8:00pm
Wednesday 7:00am - 5:00pm
Thursday 8:00am - 5:00pm
Friday 7:30am - 11:00am

The office is generally closed for lunch from 12-1 daily.
*Office hours are subject to change without notice.

  • Marlborough Location
    Marlborough Medical Building

    65 Fremont Street | Marlborough, MA 01752
    Telephone: 508-485-3665 | Fax: 508-485-0899

  • Northborough Location
    Carewell Urgent Care Building

    333 Southwest Cutoff | Northborough, MA 01532
    Telephone: 508-485-3665
    Appointments call UMASS scheduling: 855-862-7763

  • Westborough Location
    UMass Memorial Orthopedics

    154 East Main Street | Westborough, MA 01581
    Telephone: 508-485-3665
    Appointments call UMASS scheduling: 855-862-7763


Make An Appointment

To schedule an appointment, please call (508) 485-3665 OR Make an Appointment Request online.

We are currently accepting new patients and referrals.