Triple arthrodesis is commonly used for severe hindfoot deformities in which condition?

• A. Rheumatoid arthritis
• B. Charcot joint due to trauma
• C. Clubfoot deformity
• D. Charcot-Marie-Tooth disease

Answer: (D)

Triple arthrodesis is used when the hindfoot is rigidly deformed with destruction and instability of the subtalar and transverse tarsal joints, so a stable, plantigrade foot can be achieved. In Charcot neuroarthropathy from peripheral neuropathies such as Charcot-Marie-Tooth disease, the hindfoot joints often become severely deformed and unstable. Fusing the hindfoot joints—the subtalar, talonavicular, and calcaneocuboid joints—provides definitive correction, relieves pain, and prevents further deformity, making it a common salvage option for severe hindfoot deformities in this neuropathic context. Other conditions can lead to hindfoot fusion as well, but the neuropathic Charcot process is the scenario most consistently addressed with a triple fusion.