From: Trochanteric osteotomy versus posterolateral approach: function the first year post surgery. A pilot study
Power current study
Numbers needed per approach (total) *
HHS
21.1%
398
(796)
WOMAC pain
15.2%
469
(930)
WOMAC stiffness
33.4%
278
(556)
WOMAC function
10.7%
1197
(2394)