Table 1: The metaphyseal fit and outcomes of THA.

Metaphyseal fixation value
Good ( )Poor ( )

Followup (years)9.4 ± 2.810.2 ± 3.0 0.07
JOA score after surgery88 ± 1186 ± 11 0.24
Stem fixation (B/U)83/053/1 0.39
Radiolucent line in zone 4 (P/N)64/1942/12 0.93
Spot welds in zone 6 (P/N)64/1944/10 0.54
Osteolysis at medial of GT (P/N)8/7510/44 0.13
Stress shielding (grade I/ II)82/151/3 0.14

B/U: bone ingrown/unstable, P/N: positive/negative, GT: greater trochanter.