Periprothetische Knochendichteveränderung um den Hüftprothesenschaft Optan® Zementiert/Zementfrei im Verlauf eines Jahres
LicenseStandard (Fassung vom 03.05.2003)
Background: Periprosthetic bone loss is a well documented problem around cemented and cementless total hip arthroplasty (THA). So far there exists no comparison of stems with the same geometrical design. Patients and methods: We studied 25 patients (group A) receiving a cementless and 18 receiving a cemented Optan femoral component over the period of one year performing DEXA to detect periprosthetic BMD changes. Results: Clinical results documented with the Harris hip score and the WOMAC were equal in both groups. Bone loss was different in all Gruen zones except region 7 with the main bone loss in both groups. Interpretation: Fixation with or without cement changes the physiological load transfer in the femur with stress shielding in the proximal part as one of the main problems of cementless THA.
Subject HeadingsArthroplasty, replacement, hip [MeSH]
Bone remodeling [MeSH]
Prosthesis design [MeSH]