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Total Knee Replacement in Alkaptonuric Ochronosis.

Cesar Pesciallo1, German Garabano2, Joaquin Rodriguez3

  • 1Department of Orthopaedic and Traumatology, Hospital Británico de Buenos Aires. cpesciallo@yahoo.com.

Acta Bio-Medica : Atenei Parmensis
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Total knee arthroplasty (TKA) effectively treats disabling ochronotic arthropathy in patients with alkaptonuria. This rare disease treatment offers significant pain relief and functional recovery in end-stage cases.

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Area of Science:

  • Medical research
  • Orthopedic surgery
  • Rare diseases

Background:

  • Alkaptonuria is a rare metabolic disorder.
  • Characterized by homogentisic acid (HGA) accumulation.
  • Leads to ochronotic arthropathy, causing joint degeneration.

Purpose of the Study:

  • To evaluate total knee arthroplasty (TKA) for end-stage ochronotic arthropathy.
  • To assess pain relief and functional improvement after TKA.
  • To present clinical outcomes in two alkaptonuria patients.

Main Methods:

  • Case study of two patients with end-stage arthropathy due to alkaptonuria.
  • Surgical intervention: total knee arthroplasty (TKA).
  • Clinical evaluation using Knee Society Scores (KSS) at three-year follow-up.

Main Results:

  • Patients experienced disabling knee pain and limited mobility prior to TKA.
  • Intraoperative observation of characteristic dark-blue joint discoloration.
  • Favorable outcomes with excellent pain relief and functional recovery post-TKA.

Conclusions:

  • Total knee arthroplasty (TKA) is a viable treatment for end-stage alkaptonuria-related arthropathy.
  • TKA significantly alleviates pain and restores function in affected individuals.
  • Surgical intervention offers considerable benefits for patients with this rare condition.