Endoprosthetic joint replacement
A surgical procedure for endoprosthetic joint replacement is done when articular surfaces are worn due to osteoarthritis or previous traumas that cause severe pain and when conservative treatment is not effective.
Endoprosthetic joint replacement surgery is performed on the joints of the shoulder, knee, ankle, hip, and great toe.
How Is the Surgery Performed?
The procedure is performed under regional, spinal, or general anesthesia. Time in surgery depends on which joint is being replaced.
The surgical procedure involves an open approach. The damaged articular surfaces are removed together with part of the underlying bone using specialized instruments, and the removed cartilage and bone are replaced with the components of an endoprosthesis.
The shape of metal, polymeric, and ceramic implants is similar to that of natural articular surfaces. According to the method of fixation to hold the implant in place, there are 2 types of implants:
- Cemented implants that are hold in place using bone cement;
- Cementless implants are coated with hydroxyapatite crystals, which help the new bone grow into the surface of the implant. This implant technology ensures greater longevity for an artificial joint and is very suitable for physically active persons.
What Should be Known After Surgery?
- The wound should redressed 1-2 times per week;
- The sutures are removed after 10-14 days;
- Routine activities can be resumed within 3-4 months;
- Specific postoperative care guidelines depend on the type of an implant and which joint was replaced.