Martijn Kuijpers, M.Sc.
In 2011 I started with my study Biomedical Sciences in Nijmegen. I finished my Bachelor in 2014, and started with my master Human Clinical Movement Sciences. During my study, I did several internships at the Radboudumc and UMC Utrecht. In May 2017 I got the opportunity to start with my PhD at the Department of Orthopaedics. The project focuses on young patients with a total hip replacement, and is funded by the Van Rens Fonds of the LROI. We analyze the trends of the used types of THA in young patients in the Netherlands, study the midterm survival of THA and analyze which procedures are most successful. By using the patient reported outcome measurements (PROMs), we aim to investigate which implant or technique will produce the highest patient satisfaction and functionality one year after THA.
Total hip arthroplasty (THA) is regarded as one of the most successful surgical treatments of the past century. Due to this success and higher demands of society, THAs are nowadays used more often in young patients under the age of 50 as well and the number will continue to increase. Unfortunately, the outcomes of THA in these young patients are still inferior compared to older patients. One possible explanation is that the osteoarthritis in these young patients often has an underlying cause with serious hip deformations, such as childhood hip diseases, arthritis or trauma. These bone stock defects hamper the implantation of a THA. In addition, these patients are more active than the older patients and it is known that higher activity levels are related to more loading cycles and this will often lead to more wear of the prosthesis compared to older patients. For many implants, increased wear is related to a higher chance of failure of the hip implant. Due to all the above mentioned reasons, it is of great
importance to realize that young patients that require THA are a very demanding, more difficult and challenging group of patients. The care given to these patients should be optimized, not only intraoperatively, but pre- and postoperatively as well.
This project aims to analyze the trends of the used types of THA in young patients in the Netherlands, study the midterm survival of THA and to analyze which procedures are most successful and to identify the ones that have a higher risk for early revisions. By using the patient reported outcome measurements (PROMs), available in the LROI data set up to one year postoperatively, we aim to investigate which implant or technique will produce the highest patient satisfaction and functionality
one year after THA.