Periprosthetic Fractures in the Knee Joint Area. A Literature Review

Periprosthetic fractures represent a multifactorial problem due to the diverse morphology of injuries, the wide range of implants used, and the high proportion of low-energy trauma –primarily falls –caused by patient comorbidities and osteoporosis. Giventhe limitations of existing classification systems, it becomes evident that an individualized approach is necessary for each type of fracture. With the continuous development and implementation of various osteosynthesis techniques, including minimally invasive technologies, advancements in metal fixators (including patient-specific designs), and the active use of bone graft substitutes, surgical approaches to treating the same type of periprosthetic fracture can vary significantly.This review aims to present a literature review on the epidemiology, risk factors, and modern treatment approaches for periprosthetic fractures of the knee joint.Based on an analysis of the literature, the article presents fixation methods that have demonstrated the best outcomes depending on the level and type of periprosthetic knee fracture. It should be noted that osteoporosis prevention, fall prevention, control of comorbid conditions in the preoperative period, early mobilization of the patient, and ensuring safe postoperative conditions are the most important measures for reducing the risk of periprosthetic fractures.Knowledge in this area continues to evolve, with numerous risk factors identified related to the patient's condition, type of implant, and surgical technique. These findings help increase patient awareness and improve surgical team preparation, thereby reducing morbidity and improving treatment outcomes for these complex injuries.Keywords:Periprosthetic knee fractures, Primary Total Knee Arthroplasty, Fracture after total knee arthroplasty.