bone-patellar tendon auto graft is probably the most widely used graft for acl reconstruction. several methods for graft fixation have been described. to avoid intra-articular hardware we adopt biological fixation with a femoral trapezoidal press-fit fixation. a prospective study was performed on 30 consecutive active people who underwent acl reconstruction with this technique by two surgeons b...

We construct an analytical model of the mass distribution function of subhalos in a galaxy cluster in the context of the cold dark matter (CDM) theory. Our model takes account of two important effects; the high density of the precluster region and the spatial correlation of initial density fluctuations. For subhalos with small masses, the mass distribution function that our model predicts is in...

juvenile idiopathic arthritis is the leading cause of hip replacement in young children. however, arthroplasty in this population is challenging with several concerns about quality of the growing bone, young age for revision surgery, and difficulties in potential several revisions. in this study we introduce a case of a 12-year old who is one of the youngest patients to undergo revision hip art...

Acetabular component deformation secondary to forces encountered during insertion is a potential consequence of the press-fit technique. This study characterized the stiffness of Pinnacle 100 cups (DePuy, Warsaw, Ind) via mechanical testing and used this information with intraoperative measurements of cup deformation to calculate the in vivo forces acting on cups inserted during hip arthroplast...

The Journal of Prosthetic Dentistry Nissan and Ghelfan Cagna et al 3. Weinberg LA. Tooth position in relation to the denture base foundation. J Prosthet Dent 1958;8:398-405. 4. Fish EW. Principles of full denture prosthesis. London: John Bale, Sons & Danielsson, Ltd; 1933. p. 1-8. 5. Wright CR. Evaluation of the factors necessary to develop stability in mandibular dentures. J Prosthet Dent 1966...

Juvenile idiopathic arthritis is the leading cause of hip replacement in young children. However, arthroplasty in this population is challenging with several concerns about quality of the growing bone, young age for revision surgery, and difficulties in potential several revisions. In this study we introduce a case of a 12-year old who is one of the youngest patients to undergo revision hip art...

The Müller type cemented hip prosthesis, also called self-locking prosthesis, is one of the most extensively copied and utilized hip prostheses. Considering the implantation of the cemented stem, the author originally suggested achieving a press fit between the stem and endostal cortex by implanting a prosthesis of the largest possible size. Analyzing our group of patients who undergo aseptic s...

BACKGROUND The acetabular component has remained the weakest link in hip arthroplasty regarding achievement of long-term survival. Primary fixation is a prerequisite for long-term performance. For this reason, we investigated the stability of a unique cementless titanium-coated elastic monoblock socket and the influence of supplementary screw fixation. PATIENT AND METHODS During 2006-2008, we...