[Comparative assessment of mineral changes in the femoral bone after the Weller and Centrament total hip replacement]

Mineral changes within femoral bone after Weller cemented stem implantation (31 females, 20 males, mean age 69.6 years) and cemented Centrament stem implantation (35 females, 16 males, mean age 65.3 years) were evaluated and compared. Densitometry with LUNAR DPX has been performed 4 times in every patient: 8-12 days after surgery and subsequently in 6-months time span. Orthopedic Auto Analysis software has been used to determine BMC and BMD. Decrease of both values was observed at every measurement and Gruen zones 7, 6 and 1 were affected most despite of the stem type.