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Knee joint aspiration and injection.

Thomas J Zuber1

  • 1Saginaw Cooperative Hospital, Michigan, USA.

American Family Physician
|November 1, 2002
PubMed
Summary
This summary is machine-generated.

Knee joint aspiration and injection are common procedures for diagnosing and treating knee conditions. Corticosteroid injections can effectively relieve pain and reduce swelling in knee osteoarthritis with effusions.

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Area of Science:

  • Orthopedics
  • Rheumatology
  • Sports Medicine

Background:

  • Knee joint aspiration and injection are diagnostic and therapeutic procedures.
  • The knee joint is the most frequently aspirated joint due to its accessibility.

Purpose of the Study:

  • To describe the procedure for knee joint aspiration and injection.
  • To outline indications, contraindications, and management of knee effusions.

Main Methods:

  • Needle insertion 1 cm above and 1 cm lateral to the superior lateral aspect of the patella at a 45-degree angle.
  • Aspiration is performed after needle insertion (1 to 1 1/2 inches), aided by local compression.
  • Administration of local corticosteroid injections for therapeutic benefits.

Main Results:

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  • Corticosteroid injections offer significant relief for knee osteoarthritis exacerbations with effusions.
  • Indications include crystal-induced arthropathy, hemarthrosis, unexplained joint effusion, and large effusions requiring symptomatic relief.
  • Contraindications involve bacteremia, inaccessible joints, joint prosthesis, and soft tissue infection.

Conclusions:

  • Knee aspiration and injection are valuable for diagnosing and managing knee joint diseases.
  • Corticosteroid injections are effective for symptomatic relief of knee effusions, particularly in osteoarthritis.
  • Recurrent large effusions may necessitate repeat aspiration, and anti-inflammatory medications can aid in reducing inflammation and fluid accumulation.