INTERPRETATION The guidelines have improved method ological reporting in RSA studies , but adherence to these guidelines is still relatively low .
BACKGROUND AND PURPOSE Guidelines for st and ardization of  radiostereometry ( RSA )  of implants were published in 2005 to facilitate comparison of outcomes between various research groups .
In this systematic review , we determined how well studies have adhered to these guidelines .
Influence of polyethylene constraint on tibial component fixation in total knee arthroplasty: follow-up report after 5 years.
The influence of articulating surface design of AMK total knee prosthesis ( DePuy , Johnson & Johnson ) on migration and radiographic outcome at 5 years was evaluated . The knees were r and omly allocated to receive a flat or a concave insert with retention of the posterior cruciate ligament when preoperative deformity was less severe and either a concave or a posterior-stabilized insert with resection of the posterior cruciate ligament when deformity was more pronounced . In 64 knees , migration was measured with radiostereometry . The posterior-stabilized component displayed more varus-valgus tilting than the concave insert . Other statistically significant differences in migration were not seen . Radiolucent lines were frequently seen without differences between prosthesis groups
INTERPRETATION The guidelines have improved method ological reporting in RSA studies , but adherence to these guidelines is still relatively low .
BACKGROUND AND PURPOSE Guidelines for st and ardization of  radiostereometry ( RSA )  of implants were published in 2005 to facilitate comparison of outcomes between various research groups .
In this systematic review , we determined how well studies have adhered to these guidelines .