
Osteochondral knee injury
An injury involving both the articular cartilage and the underlying bone of the knee joint. It may occur acutely after trauma or with repeated loading and can affect knee function.
Smaller osteochondral injuries may cause localized pain, tenderness and sometimes mild swelling. Symptoms may increase with loading or certain movements.
Osteochondral injuries can occur through forceful compression, twisting or direct trauma to the knee joint. They may also occur together with injuries such as patellar dislocation or other knee injuries.
Common situations
- •Forceful twisting or compression of the knee
- •Direct trauma to the knee joint
- •Patellar dislocation
- •Fall or collision with the knee under load
Osteochondral injuries cannot always be prevented, particularly when they result from acute trauma. Good strength, control and progressive load increases may nevertheless improve load tolerance.
- •Train strength in the thighs, hips and trunk
- •Develop good knee and single-leg control
- •Increase training load progressively
- •Fully rehabilitate previous knee injuries
Pause activities that provoke pain and reduce loading. A suspected osteochondral injury should be assessed if symptoms persist or occur after significant trauma.
Symptom control and basic function
Control pain and swelling and restore basic knee mobility and function.
Goals
Good daily function with low symptom levels.
Progression criteria
Able to walk and perform basic exercises without significant symptom increase.
Strength and load tolerance
Progressive strength and functional training adapted to the injury.
Goals
Restore sufficient strength and control for progressively increased loading.
Progression criteria
Able to tolerate progressively increased loading without pain or swelling reaction.
- Good range of motion
- No significant swelling
- Adequate strength and control
- Able to tolerate running and progressively more football-specific movements
- No significant pain or reaction after loading
The information in the Injury Center is for educational purposes and does not replace professional medical advice. Always consult a qualified healthcare professional for diagnosis and treatment.

Osteochondral knee injury
An injury involving both the articular cartilage and the underlying bone of the knee joint. It may occur acutely after trauma or with repeated loading and can affect knee function.
Mild — Mindre skador kan förbättras under veckor till månader. Tidsförloppet beror på skadans omfattning och läge.
Symptoms
Smaller osteochondral injuries may cause localized pain, tenderness and sometimes mild swelling. Symptoms may increase with loading or certain movements.
Acute Treatment
Pause activities that provoke pain and reduce loading. A suspected osteochondral injury should be assessed if symptoms persist or occur after significant trauma.
Rehabilitation
Control pain and swelling and restore basic knee mobility and function.
Goals
Good daily function with low symptom levels.
Progression criteria
Able to walk and perform basic exercises without significant symptom increase.
Progressive strength and functional training adapted to the injury.
Goals
Restore sufficient strength and control for progressively increased loading.
Progression criteria
Able to tolerate progressively increased loading without pain or swelling reaction.
Return to Play
- ☐ Good range of motion
- ☐ No significant swelling
- ☐ Adequate strength and control
- ☐ Able to tolerate running and progressively more football-specific movements
- ☐ No significant pain or reaction after loading
Moderate — Flera veckor till flera månader är vanligt, men återhämtningen beror på skadans storlek, läge och behandling.
Symptoms
More pronounced pain and swelling may occur together with reduced load tolerance. Some people may experience catching or discomfort during specific movements.
Acute Treatment
Stop football activity and reduce loading. The injury should be medically assessed, particularly after significant trauma or with persistent swelling and mechanical symptoms.
Rehabilitation
The extent of the injury and any associated injury are assessed. Rehabilitation focuses on mobility, symptom control and basic strength.
Goals
Restore basic knee function.
Progression criteria
Good range of motion and sufficient function for progressive loading.
Strength, balance, running and football-specific movements are progressively reintroduced.
Goals
Restore load tolerance and function for football.
Progression criteria
Able to tolerate running, jumping and changes of direction without significant pain or swelling.
Return to Play
- ☐ Good range of motion
- ☐ No significant swelling
- ☐ Adequate strength and control
- ☐ Able to tolerate jumping, running and changes of direction
- ☐ No significant increase in mechanical symptoms
- ☐ Medical assessment for a confirmed osteochondral injury
Severe — Större osteokondrala skador kan kräva flera månader eller längre rehabilitering, särskilt om kirurgisk behandling behövs.
Symptoms
More severe injuries may cause significant pain, swelling, marked functional impairment or mechanical symptoms such as locking. A larger cartilage or bone injury may require specialist assessment.
Acute Treatment
Stop sports activity and seek medical assessment. Loading should be adapted to the injury and a locked knee should not be forced through movement.
Rehabilitation
The extent of the injury is assessed and loading is adapted. Early rehabilitation focuses on mobility, swelling and muscle control.
Goals
Protect the injured tissue and restore basic function.
Progression criteria
Good range of motion and controlled symptoms before progressive loading.
Strength, running, jumping and changes of direction are progressively reintroduced according to an individualized plan.
Goals
Restore full function and load tolerance.
Progression criteria
Able to complete relevant strength and football-specific testing without pain, swelling or mechanical symptoms.
Return to Play
- ☐ Good range of motion
- ☐ No significant swelling
- ☐ Adequate strength and control
- ☐ No locking or significant mechanical symptoms
- ☐ Able to tolerate full football-specific loading
- ☐ Medical assessment and individualized return-to-play plan
When to Seek Medical Care
Seek medical assessment after significant knee trauma with persistent pain or swelling, or when mechanical symptoms occur.
- Significant swelling after trauma
- Locking or catching
- Inability to bear weight normally
- Persistent pain despite reduced loading
- Significant functional impairment
References
- Osteochondral injuries — American Academy of Orthopaedic Surgeons (https://www.aaos.org/)