There are two ridges at the end of the femur. On the surface of these ridges, called the inner condyle and the outer condyle, there is cartilage.

With insufficient blood supply, part of the surface of the bone beneath the cartilage in the condyles (eighty-five percent of the internal condyle) of the thigh dies.

Following the death of the bone, the adjacent cartilaginous layer between the thigh and the tibia is also destroyed, and thus the patient feels pain and dryness due to the degeneration of the condyle of the thigh on the upper plate of the tibia. Knee joint cramps occur during knee movements. This condition is accompanied by a sound and a feeling of tightness in the knee joint during knee movements. This complication is called osteochondral injury or osteochondral defect or Osteochondritis dissecans.

What is an osteochondral injury to the knee? Our doctors will answer this question below


what you will read next :


What is Osteochondritis dissecans?

It is a rare disorder in which part of the bone beneath the cartilage dies due to insufficient blood supply. This complication may occur in the following areas:

Osteochondral injuries can be bilateral in 20 to 30% of cases.


Distribution and prevalence of osteochondritis dissecans or ocd epidemiology


What are the causes of OCD?

We said that reduced blood supply to the bone beneath the cartilage causes bone death and the destruction of the adjacent cartilage plate. The following factors can cause this condition:

Perhaps the presence of a genetic component predisposes people to osteochondral knee injury


Symptoms of osteochondral knee injury

Symptoms of OCD include:

These symptoms are usually caused by an exercise or knee movement.


How is knee osteochondral injury diagnosed?

Your doctor will evaluate the stability of the joint by performing a knee joint examination, and in addition to a thorough clinical examination, he or she may request the following diagnostic tests depending on your condition.

This method can show the bone and show the damaged part of the bone and its size limits. A white area in the bone under the cartilage is an image that provides a simple radiographic image on the OCD.

Damaged cartilage

In case of bone and cartilage displacement, it well indicates the movement of these parts into the joint space.

The condition of the bones, etc. are well displayed in this method

Definitive diagnosis of knee osteochondral injury with MRI

On examination of a person with osteochondritis dissecans of the knee with a more common involvement of the internal condyle of the lower thigh, the physician finds that the patient tends to rotate the affected leg further outward to relieve pressure from the inside of the knee.

During the examination, the doctor bends the knee and if pressure is applied to the injured part, the patient will suffer from pain.

Sometimes a radioisotope scan is also used to detect OCD


Treatment of knee disc osteochondritis

Despite non-surgical treatments (more effective in children); in some cases, treatment is only possible with surgery.

Sometimes it takes one to one and a half years to fully heal. During this time, the doctor monitors the condition of the knee with continuous imaging.


Surgical treatment

Surgery is needed in most adults and people who have had a damaged part removed.

Surgery can be done by splitting the skin or closed surgery with an arthroscope.

Whatever the surgery, your surgeon’s goal will be to place the damaged and displaced part in its original location.

The following techniques will be used by your surgeon when, due to the passage of time, both the location of the part is displaced and the part itself is deformed a lot.


What is the prognosis of osteochondral knee injury?

The following factors affect the patient’s prognosis:

In patients who are young and the damaged part is not displaced or has a slight displacement, the treatment results are good.

In people with high displacement of the damaged part, the results are usually not satisfactory.


The final words

In the end, we have to say that the symptoms of OCD are very vague in the beginning, and for this reason, it is diagnosed late. Sometimes, the affected person has only a slight decrease in the range of motion of the knee.

The most important symptom of a knee OCD is dull and vague knee pain, so if you have mild symptoms, it is best to be examined by a doctor.