What is arthroplasty for a hammertoe?
Short answer: Hammertoe arthroplasty removes a carefully selected portion of the rigid middle toe joint to straighten the toe and reduce the prominent knuckle. It preserves a mobile fibrous connection rather than creating a formal fusion.
Arthroplasty is commonly considered for a painful semi-rigid or rigid deformity when tendon release or focal exostectomy would be insufficient. It can also reduce the pressure beneath a recurrent dorsal corn.
Because bone is removed, possible trade-offs include shortening, instability or a floppy or elevated toe. Technique and selection aim to balance correction, stability and shoe comfort.