Conversion of Failed Ankle Arthrodesis to Total Ankle Arthroplasty Using a Novel Custom Fibula in a Global Pes Cavus Deformity.
Anthony Schwab, David Siegel, Sara Glessner et al.
✦ AI-curated · Sources linked
Case in brief
A patient with failed ankle arthrodesis and global pes cavus deformity underwent a staged reconstruction using a custom fibular implant, followed by total ankle arthroplasty. The approach addressed the need for a competent distal fibular strut to maintain lateral ankle stability during arthroplasty. At 36 months from the index procedure, the hindfoot complex had no reported nonunion, the arthroplasty components were adequately seated, and the patient was walking without pain.
What made this case unusual
The staged use of a custom fibular implant enabled conversion of a failed ankle fusion to total ankle arthroplasty in the setting of global pes cavus deformity.
Diagnostic / clinical pearl
When considering total ankle arthroplasty after failed fusion, lateral stability depends on an intact, competent distal fibular strut; this case describes a custom implant as an alternative when reconstruction is needed.