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Staged Bilateral Total Knee Arthroplasty for Neglected Blount Disease Using a Gap Balancing Technique
Adam J Taylor1,2, William Carpenter3, Robert P Runner2
1Department of Orthopaedic Surgery, Harbor-University of California, Los Angeles, Medical Center, Torrance, CA.
Arthroplasty Today
|August 25, 2021
Summary
Blount disease, a tibial growth disorder, can lead to severe deformity and osteoarthritis if untreated. This case study details successful bilateral total knee arthroplasty for neglected Blount disease.
Area of Science:
- Orthopedics
- Pediatric Orthopedics
- Biomechanical Engineering
Background:
- Blount disease is an acquired, asymmetrical proximal tibial growth disorder.
- It presents as infantile and adolescent variants, characterized by tibial varus deformity.
- Neglected cases can result in progressive malalignment and premature osteoarthritis.
Purpose of the Study:
- To present a case of bilateral neglected Blount disease.
- To describe the successful surgical management using bilateral total knee arthroplasty.
- To highlight the effectiveness of a staged gap balancing technique with constrained condylar implants.
Main Methods:
- Case presentation of a patient with bilateral neglected Blount disease.
- Staged bilateral total knee arthroplasty.
- Utilized a gap balancing technique.
- Employed constrained condylar knee implants.
Main Results:
- Successful surgical outcome in a patient with bilateral neglected Blount disease.
- Restoration of knee alignment and function.
- Demonstrated the efficacy of staged total knee arthroplasty in managing complex deformities.
Conclusions:
- Total knee arthroplasty is a viable treatment option for advanced, neglected Blount disease.
- Staged surgery using a gap balancing technique with constrained implants can achieve favorable results.
- Early diagnosis and treatment remain crucial for optimal prognosis in Blount disease.
