Swelling of the knee joint

Introduction Swelling of the knee joint is one of the diagnostic points of knee joint meniscus injury. Knee meniscus injury is a common condition of the knee joint. The meniscus is located on the tibial articular surface and has medial and lateral half-moon shaped bone.

Cause

The disease is a traumatic disease, mostly caused by torsion external force. When one leg is loaded, the calf is fixed in the semi-flexion, the body and the thigh are suddenly internal rotation, and the medial meniscus is between the femoral condyle and the tibia. And cause the meniscus to tear. If the knee flexion is greater at the time of sprain, the mechanism of the lateral meniscus injury is the same, but the direction of the force is opposite. The ruptured meniscus slides into the joint, causing mechanical disturbance of joint activity. , hindering the joint extension and flexion activities, forming an "interlock".

In severe trauma cases, the meniscus, cruciate ligament and collateral ligament can be damaged at the same time. The part of the meniscus injury. It can occur in the rake, back, middle or edge of the meniscus. The shape of the lesion can be transverse, longitudinal, horizontal or irregular, or even broken into intra-articular free bodies.

an examination

Related inspection

Visual examination of bone and joint and soft tissue CT examination with synovial fluid

First, the symptoms:

The disc-shaped meniscus has a thick disc shape and is susceptible to damage, often on both sides. The main symptom is that the joints often emit a clear and crisp sound. When the joint is active, the mass can be felt at the lateral meniscus and there is tenderness. Mucosal changes after meniscal injury can produce meniscus cysts, the symptoms are similar to meniscus injury, local obvious mass, the block is more obvious when knee extension.

Second, the diagnosis:

The diagnosis of meniscus injury is mainly based on medical history and clinical examination. Most patients have a history of trauma, and there are fixed pain and pressure energy in the joint space of the affected side. Combined with various examinations, most of them can make a correct diagnosis. For patients with severe trauma, attention should be paid to the presence or absence of collateral ligament and cruciate ligament injury. For advanced cases, attention should be paid to the presence of secondary traumatic arthritis.

The diagnosis of this disease can be summarized as the following points:

1. History of injury: Most patients have a more accurate history of trauma.

2, pain: meniscus injury combined with synovial injury, so the pain is heavier, especially on the injured side.

3, joint swelling: caused by blood, effusion.

4, the sound: the joint side of the wound can have a crisp sound.

5, joint lock: that is, the joint is suddenly stuck during the activity, which is caused by the broken meniscus stuck between the femoral condyle and the tibial plateau.

6, quadriceps atrophy: generally appear in chronic medical records.

Differential diagnosis

Knee swelling is a knee synovitis. Knee synovium is the most extensive and complex part of the human joint, and it also forms the largest synovial cavity. Because the knee joint is heavy, it has many movements and is most vulnerable to injury.

Knee joint effusion: Synovitis is a common clinical disease, the main symptom is knee joint effusion.

First, the symptoms:

The disc-shaped meniscus has a thick disc shape and is susceptible to damage, often on both sides. The main symptom is that the joints often emit a clear and crisp sound. When the joint is active, the mass can be felt at the lateral meniscus and there is tenderness. Mucosal changes after meniscal injury can produce meniscus cysts, the symptoms are similar to meniscus injury, local obvious mass, the block is more obvious when knee extension.

Second, the diagnosis:

The diagnosis of meniscus injury is mainly based on medical history and clinical examination. Most patients have a history of trauma, and there are fixed pain and pressure energy in the joint space of the affected side. Combined with various examinations, most of them can make a correct diagnosis. For patients with severe trauma, attention should be paid to the presence or absence of collateral ligament and cruciate ligament injury. For advanced cases, attention should be paid to the presence of secondary traumatic arthritis.

The diagnosis of this disease can be summarized as the following points:

1. History of injury: Most patients have a more accurate history of trauma.

2, pain: meniscus injury combined with synovial injury, so the pain is heavier, especially on the injured side.

3, joint swelling: caused by blood, effusion.

4, the sound: the joint side of the wound can have a crisp sound.

5, joint lock: that is, the joint is suddenly stuck during the activity, which is caused by the broken meniscus stuck between the femoral condyle and the tibial plateau.

6, quadriceps atrophy: generally appear in chronic medical records.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.