Exeter Short Stems Compared With Standard Length Exeter Stems

Femoral stem fixation. An engineering interpretation of the long-term outcome of Charnley and Exeter stems.

The excellent long-term results for the first-generation Charnley stem may not apply to later versions with flanges. It seems possible that the early design functioned as a taper-slip system, as accepted in the Exeter prosthesis. Comparison with the requirements for the alternative composite-beam system for the femoral component shows considerable differences that have important implications. T...

Cement migration after THR. A comparison of charnley elite and exeter femoral stems using RSA.

Studies using roentgen stereophotogrammetric analysis (RSA) have shown that the femoral components of cemented total hip replacements (THR) migrate distally relative to the bone, but it is not clear whether this occurs at the cement-implant or the cement-bone interface or within the cement mantle. Our aim was to determine where this migration occurred, since this has important implications for ...

Comparison of Specific Femoral Short Stems and Conventional-Length Stems in Primary Cementless Total Hip Arthroplasty.

There are several reported disadvantages with conventional-length femoral stems in cementless total hip arthroplasty (THA). Therefore, various efforts have been made to develop a specific femoral short stem to improve physiologic bone remodeling at the femoral aspect of a cementless THA. However, there are potential disadvantages with specific femoral short stems, such as malalignment, inadvert...

[Conservative femoral implants. Short stems].

Uncemented hip replacement matches the best results of classic cemented replacements. With the aim of preserving bone and soft tissue, implants with shorter stems and proximal metaphyseal support have been developed. Likewise, the lack of distal load should avoid cortical diaphyseal remodelling phenomena and the thigh pain of some cylindrical and wedge implants. The resurfacing implant, very po...

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