Femoroacetabular offset restoration in total hip arthroplasty; Digital templating a short stem vs a conventional stem

Figure 1 Measurements in digital templating before and after hip stem placement. Arrow 1: Teardrop. Arrow 2: Femoral axis determination box. Line 1: acetabular offset. Line 2: femoral offset.

Figure 2 Femoroacetabular offset difference vs caput-colllum-diaphyseal angle for student and resident. Reference lines for varus (< 120°) and valgus (> 135°) angles. CCD: Caput-colllum-diaphyseal angle; FAO: Femoroacetabular offset.

Figure 3 Femoroacetabular offset difference vs femoroacetabular offset pre-templating for student and resident. Reference line at cutoff point of 80.5 mm pre-templating Femoroacetabular offset (FAO) for the student, reference line at cutoff point of 81.25 mm pre-templating FAO for the resident. FAO: Femoroacetabular offset.