Early stability of a cementless acetabular cup with a flattened pole . A randomized RSA study

نویسندگان

  • Urs Munzinger
  • Thomas Guggi
  • Bart Kaptein
  • Marion Persoon
  • Edward Valstar
  • Cornelis Doets
چکیده

Early stability of a cementless acetabular cup with a flattened pole. A randomized RSA study Urs Munzinger1, Thomas Guggi1, Bart Kaptein2, Marion Persoon3, Edward Valstar2, Cornelis Doets4 1Department of Orthopaedics, Schulthess Clinic, Zurich, Switzerland; 2Department of Orthopaedics, Leiden University Medical Center, Leiden, Netherlands; 3Bio-Imaging Technologies B.V., Leiden, Netherlands; 4Deptartment of Orthopaedics, Slotervaart Ziekenhuis, Amsterdam, Netherlands [email protected]

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Influence of cementless cup surface on stability and bone fixation 2 years after total hip arthroplasty.

Loss of fixation between bone and implant surface is one of the main treatment problems in total hip arthroplasty. It might lead to implant instability, bone loss and treatment failure resulting in revision surgery. Surface modification is a method for improving bone response to implant and increasing implant osseointegration. However, the currently applied modifications such as hydroxyapatite ...

متن کامل

Migration pattern of cementless press fit cups in the presence of stabilizing screws in total hip arthroplasty

The aim of this study was to evaluate the initial acetabular implant stability and late acetabular implant migration in press fit cups combined with screw fixation of the acetabular component in order to answer the question whether screws are necessary for the fixation of the acetabular component in cementless primary total hip arthroplasty. One hundred and seven hips were available for follow-...

متن کامل

Comparative in vitro assessment of the primary stability of cementless press-fit acetabular cups.

Long-term stable osseointegration of porous-coated acetabular cups depends on bony ingrowth within their porous surface. For ingrowth to take place, one must ensure rigid initial fixation of the implant, by means of screws or by impaction or using a threaded ring. Primary stability is a prerequisite for long term stability through bony ingrowth. We tested several cups commonly used in our depar...

متن کامل

The Stability of Acetabular Cup under Screw Fixation

INTRODUCTION The total hip replacement is a common surgical procedure in orthopaedics. However, the acetabular cup loosening is one of the major failure modes of cementless acetabular cup. Many researches point out that an unstable cup would induce a large micromotion under dynamic loading. This large micromotion would reduce the bone ongrowth on the cementless cup surface and prohibit the osse...

متن کامل

Early Clinical Outcomes with a 3-D Porous Titanium Acetabular Cup

Cementless acetabular components are associated with a significant incidence of polyethylene wear and secondary osteolysis. 3-dimentional (3-D) porous coating and enhanced shell to a liner fixation are expected to reduce the polyethylene wear and to increase the longevity of an acetabular cup. The authors report the early clinical outcome with a cementless acetabular cup, Regenerex Ringloc+ (Zi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002