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 .
Minimally invasive surgery vs conventional exposure using the Miller-Galante unicompartmental knee arthroplasty: a randomized radiostereometric study.
Forty-one patients were  r and omized to a cemented Miller-Galante unicompartmental ( Zimmer , Warsaw , Ind ) knee arthroplasty inserted with either minimally invasive surgery or with a st and ard exposure . Clinical data and conventional radiographs were recorded and patients were followed with radiostereometric analysis to measure migration rate of the tibial component . The rehabilitation of patients operated through a small incision was faster , and there was a significant difference in days of hospitalization ( P = .03 ) . No statistical significant difference was found between the 2 groups regarding clinical or radiographic data . The Hospital for Special Surgery score was 96 and 92 , respectively , for the minimally invasive surgery and conventional group at 2 years . The limb alignment was equal in both groups with a mean femorotibial axis of 182 degrees after surgery . The rate of migration for tibial components was very small , with a maximal total point motion of 0.8 mm for both groups after 2 years follow-up
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 .