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clinical_procedures

clinical procedures in the ED

see also:

  • arthrocentesis (joint aspiration)
    • knee joint
      • anteromedial approach:
        • medial aspect mid-patella with leg extended
        • preferred approach for rheumatologists, especially if giving steroid injections
        • medial capsule is generally looser and easier to penetrate than the lateral side with less risk of impacting bone/cartilage
      • suprapatella bursa approach
        • easiest for those with obvious suprapatellar effusions - more difficult in obese patients
        • 1cm sup and 1cm lateral to proximal edge of patella - needle parallel to bed with leg extended
        • risk of intratendinous injection or pain if needle not angled correctly posteriorly and superiorly
      • infrapatella approach
        • below patella and posterior to patellar tendon whilst patient sitting with knee flexed 90deg
        • narrower target space posterior to the patellar tendon; higher risk of intratendinous or intra‑bone placement if not careful
        • used if other approaches contra-indicated
      • ultrasound guided provides better accuracy and potentially less pain in those with smaller effusions
      • for large effusions, use a stop cock to allow changing syringes to gain more aspirate for effusion relief

other procedures

clinical_procedures.txt · Last modified: 2026/03/24 04:55 by gary1

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