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S83.2 - Meniscal Tear of the Knee: Causes & Treatment
S83.2 is an ICD-10 code for a traumatic tear of the meniscus at the knee joint. It describes an injury to the cartilage tissue of the knee, commonly caused by sports activities or accidents.
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S83.2 is an ICD-10 code for a traumatic tear of the meniscus at the knee joint. It describes an injury to the cartilage tissue of the knee, commonly caused by sports activities or accidents.
What Does ICD-10 Code S83.2 Mean?
The ICD-10 code S83.2 refers to a traumatic meniscal tear (meniscus lesion) of the knee joint caused by an acute injury. The meniscus is a crescent-shaped piece of cartilage in the knee joint that acts as a shock absorber between the thigh bone (femur) and the shin bone (tibia). A tear in this tissue can lead to significant pain and impaired knee function.
Causes
A traumatic meniscal tear (S83.2) is typically caused by:
- Sudden twisting movements of the knee under load
- Sports injuries, particularly in football, skiing, or basketball
- Direct impact to the knee
- Deep squatting or kneeling combined with a rotational movement
In contrast, the code M23.2 describes degenerative meniscal lesions resulting from age-related wear and tear.
Symptoms
Typical symptoms of a meniscal tear include:
- Knee pain, often along the inner or outer side of the knee
- Swelling of the knee joint, usually developing within 24 hours
- Limited range of motion, especially when extending or bending the knee
- Locking sensation (the knee cannot be fully extended)
- Clicking or popping sensations in the knee joint
- Feeling of instability when walking
Diagnosis
Diagnosis of a meniscal tear involves:
- Clinical examination: Specific tests such as the McMurray test or the Apley test provide initial indications.
- MRI (Magnetic Resonance Imaging): The most accurate method for visualizing meniscal lesions without radiation exposure.
- X-ray: To rule out bony injuries.
- Arthroscopy: Direct assessment of the meniscus using a camera system; can also be used therapeutically at the same time.
Treatment
Conservative Treatment
For stable tears or mild symptoms, conservative treatment may be sufficient:
- Cooling and elevation of the leg during the acute phase
- Partial weight-bearing with crutches
- Physiotherapy to strengthen the muscles stabilizing the knee
- Pain management with non-steroidal anti-inflammatory drugs (NSAIDs)
Surgical Treatment
For larger tears, locking episodes, or failure of conservative treatment, an arthroscopy is usually performed:
- Meniscal repair (suture): In fresh tears located in the well-vascularized zone (red zone), the meniscus is sutured together.
- Partial meniscectomy: Removal of the damaged tissue in cases where reconstruction is not possible.
Prognosis and Recovery
The outlook for recovery depends on the location and size of the tear as well as the age and activity level of the patient. Early treatment significantly improves the prognosis. After surgery or conservative therapy, physiotherapeutic rehabilitation is usually necessary to restore full knee function.
References
- World Health Organization (WHO): ICD-10 Version 2019, Chapter XIX - S83 Dislocation, sprain and strain of joints and ligaments of knee. (https://icd.who.int)
- Logerstedt DS et al.: Knee Pain and Mobility Impairments: Meniscal and Articular Cartilage Lesions. Journal of Orthopaedic & Sports Physical Therapy, 2010.
- Luijkx T, Niknejad M: Meniscal tear. Radiopaedia.org, 2023. (https://radiopaedia.org/articles/meniscal-tear)
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