PURPOSE: Inadequate reconstruction of femoral offset after @entity572 ( @entity572 ) is associated with unfavourable outcomes, but its importance following hemiarthroplasty for displaced @entity2249 is unknown. METHODS: Our study examined the correlation between reconstructed femoral offset and functional outcome 12  months after post traumatic hemiarthroplasty in 126 prospectively enrolled elderly @entity1 . Rotation-corrected femoral offset (FORC), relative femoral offset (FORL) and contralateral femoral offset (FOC) were measured on anteroposterior radiographs. The @entity572 ( @entity572 ) was the primary outcome measure; the timed up and go (TUG) test and Lawton instrumental activities of daily living (IADL) score were secondary outcomes. Correlations were sought using the Spearman correlation coefficient (r). Sample size was calculated using an Altman nomogram, with the power set at 80  %, the significance level of 0.05 and a standardised difference of 0.75. RESULTS: The mean reconstructed FORC was 41  mm (17-67  mm) and showed a linear relationship and excellent correlation with the FOC. At 12  months, we found a significant positive correlation between FORC and @entity572 (r   =   0.303, p   =   0.025) and IADL (r   =   0.325, p   =   0.013), but not TUG (r   =   -0.026, p   =   0.863). These findings were confirmed by bivariate and multivariate correlation between FORL and functional outcome parameters. CONCLUSIONS: We found a clinically relevant relationship between femoral offset and functional outcome after hemiarthroplasty in elderly @entity1 , comparable with that of @entity572 , for treating @entity571 .

Functional implications of femoral offset following hemiarthroplasty for displaced XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity2249 :: ('MESH:D005265', 'Disease') :: ['femoral neck fracture'] @entity572 :: ('MESH:D006617', 'Disease') :: ['Harris Hip Score', 'HHS', 'THA', 'total hip arthroplasty'] @entity571 :: ('MESH:D010003', 'Disease') :: ['osteoarthritis']
@entity2249 :: (MESH:D005265,Disease) :: ['femoral neck fracture']
