Meet Our SurgeonLonnie D. Davis, MD

  • Dr. Davis is like no other...his compassion and kindness is superior! Easy to talk to, explains everything, open to all questions and takes time with you.

    Bonnie - Fairfax VA

  • He did an excellent job on my surgery and follow up. All was as expected. He answers questions thoroughly but does not waste patient time.

    Irene - Reston VA

  • Given the extent of my injury and accident, Dr. Davis did a miraculous job getting me back to normal. He always kept me informed of what to keep an eye on, and how to address certain aspects of my new life adjusting to this injury.

    Jake - Reston VA

  • He was very knowledgeable and excellent at translating what the issue with my knee was from medical terminology into layman's terms. He was extremely thorough and with this being my third opinion on my knee, I immediately decided I would continue through the surgery process with Dr. Davis.

    Eva - Washington DC

  • He is fantastic! Very kind. Smart. Answered my questions. I know nothing. And he was so patient. Treated my son with wonderful kindness and dignity. Dr. Davis is a good man. Glad to have met him! Will definitely go to his office in the future if we have a need for it.

    Jodi - Reston VA

  • It was my first appointment with Dr. Davis and he impressed me with his concern for my wellbeing. He is extremely thorough, spends plenty of time with you and has an excellent bedside manner. I would recommend him to anyone with a sports related injury.

    Lauren - Alexandria VA

  • I'm pretty active and have seen Dr. Lonnie Davis for a number of sports-related injuries for the past few years. I've seen him for a torn ACL, stress fracture in the foot, rock-climbing hand and ankle injuries, etc. I was really impressed with how well my ACL surgery, care and recovery went. He's been great at diagnosing the problems and getting me back to sports.

    Jennie - Annandale VA

Read More
Lonnie D Davis MD

Arthroscopy of the Knee Joint

Knee Arthroscopy is a common surgical procedure performed using an arthroscope, a viewing instrument, to look into the knee joint to diagnose or treat knee problems. It is a relatively safe procedure and the majority of patients are discharged from the hospital on the same day of surgery.

Knee anatomy

The knee joint is one of the most complex joints of the body. The lower end of the thighbone (femur) meets the upper end of the shinbone (tibia) at the knee joint. A small bone called the patella (kneecap) rests on a groove on the front side of the femoral end. A bone of the lower leg (fibula) forms a joint with the shinbone.

To allow smooth and painless motion of the knee joint, articular surfaces of these bones are covered with a shiny white slippery articular cartilage. Two C-shaped cartilaginous menisci are present in between the femoral end and the tibial end.

Menisci act as shock absorbers providing cushion to the joints. Menisci also play an important role in providing stability and load bearing to the knee joint.

Bands of tissue, including the cruciate and collateral ligaments, keep the different bones of the knee joint together and provide stabilization to the joint. Surrounding muscles are connected to the knee bones by tendons. The bones work together with the muscles and tendons to provide mobility to the knee joint. The whole knee joint is covered by a ligamentous capsule, which further stabilizes the joint. This ligamentous capsule is also lined with a synovial membrane that secretes synovial fluid for lubrication.

Indications for Knee arthroscopy

The knee joint is vulnerable to a variety of injuries. The most common knee problems where knee arthroscopy may be recommended for diagnosis and treatment are:

  • Torn meniscus
  • Torn or damaged cruciate ligament
  • Torn pieces of articular cartilage
  • Inflamed synovial tissue
  • Misalignment of patella
  • Baker’s cyst: a fluid filled cyst that develops at the back of the knee due to the accumulation of synovial fluid. It commonly occurs with knee conditions such as meniscal tear, knee arthritis and rheumatoid arthritis.
  • Certain fractures of the knee bones

Procedure

Knee arthroscopy is performed under local, spinal, or general anesthesia. Your anesthesiologist will decide the best method for you depending on your age and health condition.

  • The surgeon makes two or three small incisions around the knee.
  • Next, a sterile saline solution is injected into the knee to push apart the various internal structures. This provides a clear view and more room for the surgeon to work.
  • An arthroscope, a narrow tube with a tiny video camera on the end, is inserted through one of the incisions to view the knee joint. The structures inside the knee are visible to the surgeon on a video monitor in the operating room.
  • The surgeon first examines the structures inside the knee joint to assess the cause of the problem.
  • Once a diagnosis is made, surgical instruments such as scissors, motorized shavers, or lasers are inserted through another small incision, and the repair is performed based on the diagnosis.

The repair procedure may include any of the following:

  • Removal or repair of a torn meniscus
  • Reconstruction or repair of a torn cruciate ligament
  • Removal of small torn pieces of articular cartilage
  • Removal of loose fragments of bones
  • Removal of inflamed synovial tissue
  • Removal of baker’s cyst
  • Realignment of the patella
  • Making small holes or microfractures near the damaged cartilage to stimulate cartilage growth
  • After the repair, the knee joint is carefully examined for bleeding or any other damage.
  • The saline is then drained from the knee joint.
  • Finally, the incisions are closed with sutures or steri-strips, and the knee is covered with a sterile dressing.

After the Surgery

Most patients are discharged the same day after knee arthroscopy. Recovery after the surgery depends on the type of repair procedure performed. Recovery from simple procedures is often fast. However, recovery from complicated procedures takes a little longer. Recovery from knee arthroscopy is much faster than that from an open knee surgery.

Pain medicines are prescribed to manage pain. Crutches or a knee brace may be recommended for several weeks. A rehabilitation program may also be advised for a successful recovery. Therapeutic exercises aim to restore motion and strengthen the muscles of the leg and knee.

Risks and complications

Knee arthroscopy is a safe procedure and complications are very rare. Complications specific to knee arthroscopy include bleeding into the knee joint, infection, knee stiffness, blood clots or continuing knee problems.

Useful Links

  • The American Academy of Orthopaedic Surgeons
  • Medical Society of Virginia
  • American Orthopaedic Society for Sports Medicine
  • mid atlantic shoulder elbow society
  • mclean high school
  • STOP Sports Injuries