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Orthopaedic problems in patients affected by alkaptonuria. A case report
Konrad Kopeć1, Damian Kusz, Piotr Wojciechowski
1Katedra i Klinika Ortopedii i Traumatologii Narzadu Ruchu SLAM, Katowice. konkopec1@wp.pl
Ortopedia, Traumatologia, Rehabilitacja
|May 22, 2007
Summary
Alkaptonuria is a rare metabolic disorder causing homogentisic acid buildup, leading to significant musculoskeletal pain. This case highlights the importance of recognizing alkaptonuria for proper diagnosis and orthopedic management.
Area of Science:
- Biochemistry
- Genetics
- Orthopedics
Background:
- Alkaptonuria (AKU) is a rare autosomal recessive metabolic disorder.
- It stems from a deficiency in the homogentisic oxidase enzyme, crucial for phenylalanine and tyrosine metabolism.
- This deficiency leads to the accumulation of homogentisic acid (HGA) and its polymers.
Observation:
- A 66-year-old female presented with progressive knee and low back pain.
- Investigations confirmed these symptoms were manifestations of underlying alkaptonuria.
- The patient's clinical presentation underscores the significant orthopedic impact of AKU.
Findings:
- Homogentisic acid polymer deposition in connective tissues causes widespread organ damage.
- Musculoskeletal complications, including joint pain and degeneration, are common in alkaptonuria patients.
- Early recognition of AKU's cardinal signs is vital for effective management.
Implications:
- This case emphasizes the need for increased awareness of alkaptonuria among clinicians, particularly orthopedic specialists.
- Understanding the pathophysiology of AKU aids in diagnosing and managing its diverse clinical manifestations.
- A comprehensive approach integrating biochemical, genetic, and orthopedic perspectives is essential for improving patient outcomes in alkaptonuria.
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