『Radial Head Replacement』のカバーアート

Radial Head Replacement

Radial Head Replacement

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Radial Head Replacement – Anesthetic ConsiderationsPatient Background
  • Age/Sex: 42-year-old female
  • History: Sustained trauma from a road traffic accident
  • Comorbidities: None reported
  • Condition: Complex radial head fracture requiring excision or fixation

Preoperative Anesthesia EvaluationHistory
  • Mechanism of injury:
  • Time and type of accident
  • Presence of associated injuries such as head trauma, loss of consciousness, cervical or back pain
  • Upper limb symptoms:
  • Numbness, paresthesia, or motor weakness
  • Pain management:
  • Current analgesic medications used
  • Pregnancy status:
  • Mandatory screening in women of reproductive age
  • Past anesthetic history:
  • Previous adverse reactions to anesthesia or difficulties with airway management
  • Bleeding history:
  • Any known bleeding disorders or use of anticoagulants
  • Polytrauma assessment:
  • Screening for other injuries commonly associated with road traffic accidents

Reference:

American Society of Anesthesiologists. Practice advisory for preanesthesia evaluation: an updated report by the American Society of Anesthesiologists Task Force on Preanesthesia Evaluation. Anesthesiology. 2012;116(3):522-538. doi:10.1097/ALN.0b013e31823c1067

Investigations
  • Laboratory: Complete blood count, renal and liver function tests, electrolytes, coagulation profile
  • Urine: Urine pregnancy test
  • Cardiac: Electrocardiogram (recommended for age >40)
  • Imaging:
  • X-ray/CT scan of elbow and forearm
  • Chest X-ray or CT if blunt chest injury suspected
  • Cervical spine screening where indicated

Reference:

American Society of Anesthesiologists. Practice advisory for preanesthesia evaluation: an updated report by the American Society of Anesthesiologists Task Force on Preanesthesia Evaluation. Anesthesiology. 2012;116(3):522-538. doi:10.1097/ALN.0b013e31823c1067

Anesthetic Plan
  • Primary technique: General anesthesia as per surgical request
  • Regional anesthesia (brachial plexus block): Avoided because:
  • Postoperative neurologic evaluation is required to detect surgical nerve injury
  • Regional block may mask early signs of compartment syndrome
  • Complex surgical dissection expected in close proximity to neural structures

Reference:

American Society of Anesthesiologists. Practice advisory for preanesthesia evaluation. Anesthesiology. 2012;116(3):522-538.

Intraoperative ManagementPositioning
  • Supine with the operated arm supported across the chest using a padded bolster or arm board
  • Key considerations:
  • Neutral shoulder alignment; avoid excessive abduction or stretch
  • Adequate padding under the elbow, wrist, and hand
  • Secure all lines to ensure continuous airway access and monitor visibility
  • Avoid chest compression that could impair ventilation

Reference:

American Society of Anesthesiologists Task Force on Prevention of Perioperative Peripheral Neuropathies. Practice advisory. Anesthesiology. 2018;128(4):657-668. doi:10.1097/ALN.0000000000002025

Radiation Exposure (if fluoroscopy used)
  • Minimize exposure with pulse mode, beam collimation, and reduced fluoroscopy time
  • Staff protection with lead aprons and thyroid...
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