Final answer:
A Keller arthroplasty or McKeever procedure is typically performed to treat arthritis, focusing on the base of the big toe, commonly associated with bunions and osteoarthritis. It involves replacing the articular surfaces with a prosthesis, improving mobility and reducing pain.
Step-by-step explanation:
A Keller arthroplasty or McKeever procedure is performed to treat arthritis. Arthroplasty is a surgical procedure that provides relief from chronic pain and enhances mobility, sometimes within a few months following the surgery. This type of surgery usually involves replacing the articular surfaces of the bones with a prosthesis, such as in hip or knee replacements. In particular contexts, like the Keller arthroplasty, it can be used to address deformities and pain at the base of the big toe, often caused by osteoarthritis, as indicated by the presence of a bunion.
While joint replacement is an invasive option, when other treatments fail to provide relief, arthroplasty can significantly improve quality of life by alleviating pain and restoring function. Custom-made artificial components ensure the best possible fit and function for the patient, contributing to the success of the surgery.