Initial Rotational Instability of the Tapered Wedge-Shaped Type Cementless Stem.
Yosuke IwamotoHiroaki KijimaHiroshi TazawaNatsuo KonishiHitoshi KubotaShin YamadaTakayuki TaniKeiji KamoNorio SuzukiYoshihiko OkuderaMasashi FujiiKen SasakiTetsuya KawanoItsuki NagahataNaohisa MiyakoshiYoichi ShimadaPublished in: Advances in orthopedics (2020)
In all cases, including stove-pipe cases, the degree of rotational change in the Accolade® TMZF stem from immediately to 1 year after surgery was within 3°. In other words, regardless of femoral canal shape, the tapered wedge-shaped type cementless stem has little initial rotational instability.