Osteochondritis Dissecans
Osteochondritis Dissecans of Knee
Osteochondritis dissecans of knee is a joint condition that weakens the bone beneath the cartilage, often causing pain, swelling, or even loose fragments within the joint. It is most common in children, teens, and young adults, particularly those active in sports.
With timely diagnosis and advanced treatment, full recovery is possible.
Under the care of Dr. Guillermo Sanchez, the most trusted orthopedic doctor, known for his expertise in joint preservation and minimally invasive techniques, patients receive personalized care focused on restoring mobility and long-term joint health.
What Is Osteochondritis Dissecans?
Joints are designed to glide with a layer of protective cartilage. When part of the bone and cartilage separates, the surface becomes irregular.
This can make movement painful, reduce the range of motion, and compromise joint stability.
Osteochondritis dissecans of knee is a joint disorder in which a section of subchondral bone (the bone just beneath the cartilage surface) loses its blood supply.
Over time, this may cause the bone and its overlying cartilage to fragment and detach.
Joints Commonly Affected
Although OCD can occur in several joints, the knee is by far the most common site. Other locations include:
- Elbow – Often in young athletes, particularly baseball players who pitch.
- Ankle – Typically associated with ankle injuries or repeated sprains.
- Shoulder and hip – Less common, but still possible.
The condition most often affects just one joint, but in familial cases, multiple joints may be involved.
Types of Osteochondritis Dissecans
Two main types of OCD are recognized:
Sporadic Osteochondritis Dissecan
This common procedure replaces both sides of the knee joint with durable artificial implants. It’s ideal for patients with severe arthritis or extensive damage.
It can affect multiple joints and is often associated with shorter stature and early-onset osteoarthritis.
Familial Osteochondritis Dissecans
A rare, inherited form caused by a mutation in the ACAN gene, which encodes the aggrecan protein, a crucial component of cartilage that plays a significant role in skeletal development and joint function.
Causes of Osteochondritis Dissecans
The precise cause of OCD is still being studied. Factors that are believed to play a role include:
Repetitive microtrauma
Running, jumping, or throwing can place repeated stress on a joint. Over time, these stresses may disrupt the blood flow to a small area of bone.
Genetic predisposition
In familial OCD, a genetic mutation impairs cartilage structure and resilience.
Reduced blood flow (ischemia)
The fundamental mechanism is a localized lack of circulation in the bone beneath the cartilage.
Risk Factors
Anyone can develop OCD, but certain groups are more likely to be affected:
- Children and adolescents between the ages of 10 and 20
- Males (slightly higher incidence than females)
- Athletes in high-impact sports such as basketball, soccer, baseball, and gymnastics
- People with a family history of OCD
Symptoms of Osteochondritis Dissecans of the Knee
Symptoms depend on whether the bone fragment remains in place or becomes loose:
Pain
The most common symptom, often triggered by activity and relieved with rest.
Swelling and tenderness
Especially after sports or physical exertion.
Stiffness
Limiting range of motion in the knee.
Joint weakness or instability
A sensation of the knee “giving way.”
Clicking or locking
If the bone and cartilage fragment becomes loose inside the joint.
In early stages, some individuals, especially children, may not notice significant symptoms until the lesion progresses.
Possible Complications
If untreated, OCD can lead to progressive joint problems, including:
- Chronic pain and swelling
- Limited range of motion
- Loose fragments causing locking or catching
- Early-onset osteoarthritis, especially in familial OCD
Diagnosis and Tests
How Is Osteochondritis Dissecans Diagnosed?
Diagnosing osteochondritis dissecans of knee usually involves both a clinical assessment and imaging tests:
Physical examination
Comparison of the affected knee with the healthy one is done, checking for pain, swelling, and how well the joint moves
X-rays
These are often the first step in evaluation and can reveal changes in the bone and the size of the lesion.
MRI scans
Provide a clearer picture of the cartilage, the stability of the lesion, and the condition of the surrounding bone.
Ultrasound
In some cases, this helps assess soft tissue involvement around the joint.
Genetic testing
If there is a family history of the condition, testing may be advised to rule out inherited forms of OCD.
Osteochondritis Dissecans Treatment
The treatment plan depends on the patient’s age, skeletal maturity, lesion size, and stability.
Non-Surgical (Conservative) Management
Conservative treatment is more successful in children and adolescents with open growth plates.
Approaches include:
Rest and activity modification
Avoid sports and high-impact activity to allow healing.
Medication
Nonsteroidal anti-inflammatory drugs (NSAIDs) are prescribed to reduce pain and swelling.
Immobilization
Bracing or casting the knee to protect the joint.
Medication Physical therapy
Target exercises to maintain muscle strength, flexibility, and joint mobility.
Surgical Options
Surgery is taken into consideration only when the conservative care fails or when lesions are unstable or detached.
Techniques include:
Drilling
(microfracture or retrograde drilling) Creating small channels to restore blood supply to the lesion.
Fixation
Using screws or pins to secure loose fragments.
Bone or cartilage grafting
Transplanting healthy tissue to replace damaged bone and cartilage.
Arthroscopic procedures
Minimally invasive surgery using small incisions and a camera for precision.
Recovery and Prognosis
- Children and adolescents – High potential for healing with conservative treatment.
- Adults – More likely to require surgery, with a higher risk of developing osteoarthritis.
- Most patients need several months of rehabilitation, with improvement in pain and function over time.
Recovery after surgery may involve using crutches for several weeks followed by structured physiotherapy. Depending on healing, most patients gradually return to sports after four to six months.
Early diagnosis and appropriate management offer the best chance for full recovery.
Can Osteochondritis Dissecans Heal on Its Own?
Yes, especially in younger patients whose bones are still developing. With rest and activity modification, many lesions heal spontaneously.
Prevention and Joint Protection
While OCD cannot always be prevented, certain measures can reduce risk:
- Maintain a healthy lifestyle and balanced nutrition
- Avoid overuse injuries by alternating activities and allowing rest
- Use proper protective equipment in sports
- Learning correct sports techniques and mechanics
- Seeking early care for persistent joint pain
It is important to see a healthcare provider if joint pain lasts more than a week or if symptoms such as swelling or locking occur.
Why Choose Dr. Guillermo Sanchez
Trusted Orthopedic Doctor in Dubai
Over a decade of international experience in treating bone, joint, and soft tissue conditions.
Specialist in Foot & Ankle Surgery
A recognized foot and ankle surgeon in Dubai, skilled in minimally invasive and arthroscopic procedures, minimally invasive procedures, total ankle replacement, and regenerative therapies.
Comprehensive Orthopedic Expertise
Expertise spanning general orthopedics, sports medicine, trauma care, and joint replacement.
Patient-Centered Care
Every treatment plan is personalized, balancing medical precision with lifestyle needs to ensure faster, safer recovery.
Strong Academic Credentials and Recognition
Active member of global associations and staying at the forefront of innovation in orthopedics.
Personalized Healing Approach
Dedicated to restoring mobility, reducing pain, and improving quality of life with compassionate and evidence-based care.
Take the First Step Toward Recovery
Persistent knee pain should never be ignored. If you or your child is experiencing symptoms suggestive of osteochondritis dissecans of knee, early evaluation is key to preventing complications and preserving joint function.
Book a consultation with Dr. Guillermo Sanchez today to explore the best treatment options and get back to living an active, pain-free life.
Your path to pain-free movement starts here.