Joint Blockage – Causes, Symptoms and Treatment

What is a Joint Blockage?

A joint blockage refers to a condition in which a joint suddenly becomes restricted or completely locked in its range of motion. This can occur in various joints throughout the body, but is most commonly observed in the knee, spine, shoulder, or smaller finger joints. The blockage may be temporary or persistent and is frequently accompanied by intense pain and a feeling of instability.

Causes

Joint blockages can be triggered by a variety of mechanical and pathological causes:

• Loose joint bodies: Detached fragments of cartilage or bone (known as joint mice) can become trapped within the joint space and cause a blockage.
• Meniscus tears: Particularly in the knee joint, torn meniscal tissue can fold over and mechanically lock the joint (known as a bucket-handle tear).
• Vertebral blockage: In the spine, facet joints can become blocked due to muscle tension or improper loading.
• Synovial folds: Inflamed or impinged folds of the joint lining (synovium) can restrict movement.
• Osteoarthritis: Advanced joint degeneration can lead to blockages due to irregular joint surfaces.
• Trauma: Following an injury, joints may become blocked due to swelling, hematomas, or structural damage.

Symptoms

The typical signs of a joint blockage include:

• Sudden onset of severe pain in the affected joint
• Restricted or completely absent range of motion
• A clicking, catching, or snapping sensation in the joint
• Swelling and warmth around the joint
• Feeling of instability when bearing weight on the joint
• Muscle tension in the surrounding area of the affected joint

Diagnosis

The diagnosis of a joint blockage is established through a combination of methods:

• Medical history: The physician gathers detailed information about the onset and nature of symptoms.
• Physical examination: Assessment of mobility, stability, and pain points of the affected joint.
• Imaging: X-rays can reveal bony changes or loose joint bodies. Magnetic Resonance Imaging (MRI) provides detailed images of cartilage, menisci, ligaments, and soft tissues.
• Arthroscopy: Joint endoscopy can be used both for diagnosis and simultaneous treatment.

Treatment

Conservative Treatment

For milder joint blockages, particularly in the spine, conservative measures are attempted first:

• Manual therapy / chiropractic treatment: Targeted mobilization and manipulation techniques to release the blockage.
• Physiotherapy: Strengthening of joint-stabilizing muscles and improvement of mobility.
• Medication: Pain relievers and anti-inflammatory drugs (e.g., NSAIDs) to alleviate symptoms.
• Cold therapy: Application of cold packs to reduce swelling and relieve pain during the acute phase.

Surgical Treatment

When conservative measures are insufficient or a structural cause is identified, surgical intervention may be required:

• Arthroscopy: Minimally invasive joint endoscopy for the removal of loose joint bodies, treatment of meniscus tears, or smoothing of cartilage damage.
• Open surgery: In rarer cases involving complex injuries or severe osteoarthritis.

When to See a Doctor?

Sudden inability to move a joint, persistent pain, or recurring blockages should prompt an immediate visit to a physician. Early diagnosis and treatment can prevent long-term joint damage.

References

1. Niethard, F. U., Pfeil, J., Biberthaler, P. (2014): Duale Reihe Orthopaedie und Unfallchirurgie. 7th edition. Thieme Verlag, Stuttgart.
2. Buckup, K., Buckup, J. (2012): Clinical Tests for the Musculoskeletal System. 3rd edition. Thieme Verlag, Stuttgart.
3. Frontera, W. R., Silver, J. K., Rizzo, T. D. (2018): Essentials of Physical Medicine and Rehabilitation. 4th edition. Elsevier, Philadelphia.