End-stage knee arthritis necessitates surgical intervention in the form of a knee replacement, offering relief from debilitating pain and restoring mobility. During the procedure, the damaged knee joint surfaces are meticulously removed and replaced with specialized components.
The primary components of a knee replacement include a metal bearing surface affixed to the distal femur, or thighbone, and a metal baseplate supporting a polyethylene bearing surface. This configuration provides durable support and facilitates smooth movement within the joint.
In addition to addressing the joint surfaces, the alignment of the kneecap may be adjusted as needed during the surgery. However, routine resurfacing of the kneecap is typically not performed.
Performing knee replacement surgeries requires a high level of skill and precision. Accurate ligament balancing and careful selection of implant sizes are crucial to ensuring optimal outcomes. Implants that are too loose, too tight, or unstable may necessitate revision procedures in the short term.
However, when placed correctly, knee replacements offer excellent outcomes and long-term survivorship. Patients typically experience a return to normal function within approximately three months post-surgery. With proper rehabilitation and adherence to post-operative guidelines, individuals can enjoy a significant improvement in quality of life, free from the constraints of knee arthritis.
