
Open resection through a limited lateral incision for the treatment of patellar clunk syndrome associated with patellar tilt in total knee arthroplasty is described. The procedure is done under local anesthesia. Dynamic flexion and extension of the knee during surgery ensures that correct patellar tracking has been restored.
How is patellar clunk syndrome treated in total knee arthroplasty?
Open resection through a limited lateral incision for the treatment of patellar clunk syndrome associated with patellar tilt in total knee arthroplasty is described. The procedure is done under local anesthesia. Dynamic flexion and extension of the knee during surgery ensures that correct patellar tracking has been restored.
What are the symptoms of patella clunk syndrome?
Patients may experience patellofemoral pain and popping, crunching or catching when bending the knee or a “clunk.” Dr. Buechel is a top knee specialist who can accurately diagnose complications of total knee replacement surgery, including patella clunk syndrome.
What causes a clunk in the patellofemoral articulation?
a painful, palpable "clunk" at the patellofemoral articulation of posterior stabilized TKA caused by a fibrous nodule of scar tissue at the posterior surface of the distal quadriceps tendon/superior patellar pole catching on the box of the femoral component during knee extension
What is patellofemoral clunking?
Definition a painful, palpable "clunk" at the patellofemoral articulation of posterior stabilized TKA caused by a fibrous nodule of scar tissue at the posterior surface of the distal quadriceps tendon/superior patellar pole catching on the box of the femoral component during knee extension.

How do you fix patellar clunk?
If patellar clunk syndrome occurs, it is usually several months after total knee replacement surgery. To address the condition, knee arthroscopy can be performed to remove excess scar tissue to restore smoother movement and relieve knee pain.
What causes patellar clunk?
The patellar clunk syndrome describes painful catching, grinding or jumping of the patella when the knee is moving from a flexed to an extended position. It is caused by overgrowth of a fibrous nodule on the superior aspect of the patellar button,2 and is usually seen from three to nine months after the operation.
What does a clunking of the knee mean?
It usually happens when air bubbles develop in body tissues, but it can also happen when the tendons or ligaments snap over the bony structures in the knee, or as a result of patellofemoral pain syndrome (PFS), torn cartilage, or osteoarthritis (OA). Other people may or may not be able to hear the sound.
Is it normal for a knee replacement to clunk?
It is not uncommon to hear clicking or clunking noises from your replacement knee. It can sound alarming, as if there is something wrong with your knee and that it is not secure, however, there is nothing to worry about.
Who is Clunk?
Clunk, a character from the British cartoon series Robozuna.
What is arthroplasty in surgery?
Arthroplasty is a surgical procedure to restore the function of a joint. A joint can be restored by resurfacing the bones. An artificial joint (called a prosthesis) may also be used.
How can I strengthen my crunchy knees?
Straight Leg Raises. If your knee's not at its best, start with a simple strengthening exercise for your quadriceps, the muscles in the front of the thigh. ... Hamstring Curls. These are the muscles along the back of your thigh. ... Prone Straight Leg Raises. ... Wall Squats. ... Calf Raises. ... Step-Ups. ... Side Leg Raises. ... Leg Presses.
How do I stop my knees from cracking?
Our “How to Stop Knees From Cracking” Routine Step-By-StepStraighten the affected leg (your knee should stay locked). ... Bend the leg closest to the wall until you intensify the calf stretch to between 8 and 9 on your personal pain scale.Hold for between 2 and 2.5 minutes.Repeat on the other side.
How long does knee cartilage damage take to heal?
After cartilage injury there must be a six-week period of non-weight bearing, but full recovery can take up to a year to fully heal and regain the full range of movement.
What is the most commonly reported problem after knee replacement surgery?
Knee Stiffness One of the most common problems people experience after knee replacement is a stiff knee joint. Often these symptoms can cause difficulty with normal activities including going down stairs, sitting in a chair, or getting out of a car.
Will my knee replacement ever stop clicking?
As a rule, you should see a doctor if the clicking noises are accompanied by pain, swelling, or joint deformity, or if a new noise develops out of the blue. Generally speaking, you would expect noises to diminish over time, not increase.
How do I get my knee to stop clicking after knee replacement?
0:262:37Why is your Knee Replacement Clicking, Popping, or Clunking??YouTubeStart of suggested clipEnd of suggested clipAnd what we have found is over time when the swelling goes down. And as you get stronger right thatMoreAnd what we have found is over time when the swelling goes down. And as you get stronger right that that tends to diminish those tend to diminish exactly.
Introduction
This is a syndrome which occurs when a fibrous nodule forms on the joint capsule, just above the patella. This is a complication of Total Knee Replacement and once this develops the Knee starts making a loud clunk. At about 40 degrees of flexion this lump gets trapped between the anterior flange of the femoral component and hence the clunk.
Clinical Findings
Discomfort and pain in the knee, loud clunk on flexion, blocking of further movement, synovitis, effusion.
Prevention
With the use of the newer designs of the total knee prosthesis very few cases of patella clunk have been seen. This is because the newer designs offer a much longer and deeper groove for the patella to fall back into the notch of the femur.
Can a knee replacement fix a clunk?
Yes, although it’s fair to say the best treatment of all is not to allow the clunk to develop in the first place by using a modern, well-aligned implant. PCS can be addressed by a revision (‘fix’) of the knee replacement.
Can a knee clunk cause pain?
Where the clunk causes only occasional or mild discomfort, it may be that surgery would be seen as an unjustifiable risk. If you are experiencing a knee clunk or other knee pain or discomfort, explore your best treatment options now by contacting us or phone us on 03453 052 579. > Discover more about Jon Smith.
What does it mean when your knee is clunking?
As the knee straightens, the bump moves out of the notch. Knee pain and a “crunching” sound occur as the patella moves against the femur. At the same time, a “clunk” is usually heard.
When did knee implants come out?
Starting in 1978, there have been a series of changes that affect the kneecap. The second generation of implants was released in 1989. Another design made its way onto the market in 1995. The newest implant and next generation appears to have eliminated patellar clunk syndrome.
Where does a fibrous bump form in the knee?
When the knee bends, this fibrous bump gets trapped within a notch in the surface of the thighbone (femur). (The bottom of the femur meets the top of the tibia in the lower leg to form the knee joint.) As the knee straightens, the bump moves out of the notch.
