Foot and ankle deformities can play a very important role in the outcome of a total knee arthroplasty. Total knee replacement has done very well for patients over the years, and it can be performed reliably with a high degree of accuracy and precision for long lasting results.
But 5-10% of total knee replacements fail every year. A lot of times that can be due to other causes such as lower extremity deformities. So it is important to assess how lower extremity deformity plays a role in the alignment when performing a total knee replacement.
While each patient is different, many patients who have painful knee arthritis will have a pre-existing foot and ankle issue, which is important to be aware of. Surgical correction isn’t always needed as non-operative corrections are preferred, such as shoe modification, arch support or orthotics, or foot and ankle braces can accommodate the patient well. But if these don’t work, and the patient becomes symptomatic, that might require further treatment of the foot or ankle.
Watch the complete interview by Craig S. Radnay, MD, from the Insall Scott Kelly Institute for Orthopaedics and Sports Medicine in New York at the International Congress for Joint Reconstruction conference: