Staged Bilateral Total Knee Arthroplasty for Neglected Blount Disease Using a Gap Balancing Technique

• Published in: Arthroplasty today Vol. 11; pp. 25 - 31
• Main Authors: Taylor, Adam J., Carpenter, William, Runner, Robert P.
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.10.2021; Elsevier
• Subjects: Arthroplasty in Patients with Rare Conditions; Blount disease; Constrained condylar knee; Gap balancing technique; Total knee arthroplasty; Constrained condylar knee; Total knee arthroplasty; Gap balancing technique; Blount disease
• ISSN: 2352-3441; 2352-3441
• DOI: 10.1016/j.artd.2021.07.009

Blount disease is an acquired, asymmetrical disorder of proximal tibial growth that results in a complex three-dimensional proximal tibial deformity, with tibial varus being the dominating feature. Although the exact pathophysiology is unknown, Blount disease is separated into 2 clinical variants, infantile and adolescent, based on the onset of symptoms occurring before or after the age of 10 years. If recognized and treated early, affected patients generally have a favorable prognosis; however, if neglected, it can lead to progressive malalignment and premature osteoarthritis. We present a patient with bilateral neglected Blount disease who underwent successful bilateral total knee arthroplasty performed in a staged fashion using a gap balancing technique with constrained condylar knee implants.