Results Significant differences were found in the femoral offset and overall complication rate between the conventional and navigation groups .
Additionally , the conventional group had significantly less anteversion than the navigation group .
However , the navigation group had significantly better inclination .
The operation time was significantly shorter in the conventional than navigation group .
Conclusion Both the OrthoPilot navigation system and conventional total hip arthroplasty result in significant improvements in patient function with similar overall complication rates and have their own advantages in achieving good cup position .
The conventional procedure has a shorter operation time than does use of a navigation system
Objective This study was performed to compare the clinical efficacy between the OrthoPilot navigation system and conventional manual surgery in patients undergoing total hip arthroplasty .
Navigated and nonnavigated total hip arthroplasty: results of two consecutive series using a cementless straight hip stem.
The purpose of this study was to compare conventional and navigated technique and a recently developed straight hip stem for uncemented primary total hip arthroplasty . The results of two consecutive implantation series of 42 patients ( nonnavigated ) and 42 patients ( navigated )  were analysed for implant positioning and complications . All surgeries were performed by the investigator . Radiographic analysis of cup position showed a significant improvement with reduced radiologic inclination ( 53 degrees nonnavigated /44 degrees navigated ; P < .001 ) and higher anteversion ( 7 degrees nonnavigated /12 degrees navigated ; P < .001 ) . The mean postoperative limb length difference was 6.2 mm ( SD , 9.0 for nonnavigated ) and 4.4 mm ( SD , 6.4 for navigated ) . Intraoperative and early postoperative complications were not different . No dislocation occurred in either group . There was one intraoperative trochanter fracture that was not revised ( nonnavigated ) and one revision because of a periprosthetic fracture caused by fall down during rehabilitation ( navigated ) . We conclude that acetabular implant positioning can be significantly improved by the use of navigated surgery technique . The data for postoperative limb length difference were still similar but within the expected range in both groups . The effect of improved cup positioning on mid and longterm results for both groups has to be investigated further
Results Significant differences were found in the femoral offset and overall complication rate between the conventional and navigation groups .
Additionally , the conventional group had significantly less anteversion than the navigation group .
However , the navigation group had significantly better inclination .
The operation time was significantly shorter in the conventional than navigation group .
Conclusion Both the OrthoPilot navigation system and conventional total hip arthroplasty result in significant improvements in patient function with similar overall complication rates and have their own advantages in achieving good cup position .
The conventional procedure has a shorter operation time than does use of a navigation system
Objective This study was performed to compare the clinical efficacy between the OrthoPilot navigation system and conventional manual surgery in patients undergoing total hip arthroplasty .