Patients experienced significant post-THR improvements in Harris Hip scores , but this did not differ between impact types .
Recipients of cross-linked vs. conventional polyethylene cup liners experienced reduced femoral head penetration and revision .
There was no impact of femoral stem fixation and cup shell design on implant survival rates .
Evidence on mortality and complications ( aseptic loosening , femoral fracture ) was inconclusive .
BACKGROUND Evolvements in the design , fixation methods , size , and bearing surface of implants for  total hip replacement ( THR ) have led to a variety of options for healthcare professionals to consider .
The need to determine the most optimal combinations of THR implant is warranted .
This systematic review evaluated the clinical effectiveness of different types of THR used for the treatment of end stage arthritis of the hip .
Wear and migration of highly cross-linked and conventional cemented polyethylene cups with cobalt chrome or Oxinium femoral heads: a randomized radiostereometric study of 150 patients.
This r and omized study was performed to compare wear and migration of five different cemented total hip joint articulations in 150 patients . The patients received either a Charnley femoral stem with a 22.2  mm head  or a Spectron EF femoral stem with a 28 mm head . The Charnley articulated with a γ-sterilized Charnley Ogee acetabular cup . The Spectron EF was used with either EtO-sterilized non-cross-linked polyethylene ( Reflection All-Poly ) or highly cross-linked ( Reflection All-Poly XLPE ) cups , combined with either cobalt chrome ( CoCr ) or Oxinium femoral heads . The patients were followed with repeated RSA measurements for 2 years . After 2 years , the EtO-sterilized non-cross-linked Reflection All-Poly cups had more than four times higher proximal penetration than its highly cross-linked counterpart . Use of Oxinium femoral heads did not affect penetration at 2 years compared to heads made of CoCr . Further follow-up is needed to evaluate the benefits , if any , of Oxinium femoral heads in the clinical setting . The Charnley Ogee was not outperformed by the more recently introduced implants in our study . We conclude that this prostheses still represents a st and ard against which new implants can be measured
Patients experienced significant post-THR improvements in Harris Hip scores , but this did not differ between impact types .
Recipients of cross-linked vs. conventional polyethylene cup liners experienced reduced femoral head penetration and revision .
There was no impact of femoral stem fixation and cup shell design on implant survival rates .
Evidence on mortality and complications ( aseptic loosening , femoral fracture ) was inconclusive .
BACKGROUND Evolvements in the design , fixation methods , size , and bearing surface of implants for  total hip replacement ( THR ) have led to a variety of options for healthcare professionals to consider .
The need to determine the most optimal combinations of THR implant is warranted .
This systematic review evaluated the clinical effectiveness of different types of THR used for the treatment of end stage arthritis of the hip .