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Reflex sympathetic dystrophy following total knee replacement.

H U Cameron1, Y S Park, M Krestow

  • 1Department of Surgery, University of Toronto, Ontario, Canada.

Contemporary Orthopaedics
|September 5, 1994
PubMed
Summary
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Lumbar sympathetic blocks provided relief for reflex sympathetic dystrophy (RSD) following knee replacement in 44.8% of patients. This treatment shows promise for managing persistent post-operative pain, though further research is needed.

Area of Science:

  • Pain Management
  • Orthopedic Surgery
  • Neurology

Background:

  • Reflex sympathetic dystrophy (RSD) can cause persistent pain after total knee replacement.
  • Accurate diagnosis of RSD post-knee replacement can be challenging due to confounding factors.

Purpose of the Study:

  • To evaluate the effectiveness of lumbar sympathetic blocks in treating reflex sympathetic dystrophy (RSD) following total knee replacement.

Main Methods:

  • Twenty-nine patients diagnosed with RSD post-total knee replacement received lumbar sympathetic blocks using local anesthetic.
  • Diagnosis was based on constant pain unrelated to activity, excluding sepsis or implant loosening.

Main Results:

  • Complete pain relief was achieved in 13 patients (44.8%) after an average of 1.8 blocks.

Related Experiment Videos

  • Twelve patients experienced temporary complete or partial relief.
  • Three patients reported no relief, and one procedure was unsuccessful.

    • Conclusions:

    • Lumbar sympathetic blocks offer a viable treatment option for managing reflex sympathetic dystrophy after total knee replacement.
    • The study encourages continued use of this method despite not clarifying etiology or diagnostic accuracy.