A variety of materials were used for early hip prostheses. The introduction of Vitallium by Smith-Petersen represented a further advance in this surgical field. We present the longest known follow-up of a Smith-Petersen Vitallium mould arthroplasty.

Distal humeral replacement and the total elbow are two commonly-used arthroplastiesEach prosthesis has evolving indications and surgical techniquesRecent changes in device design and implantation methods are due to biomechanical and clinical outcome-based researchNew prostheses and methods provide: better elbow kinematics, more durable bearings and longer-lasting joint replacement potential Cit...

"Wolff's law" is widely known in orthopaedics. For example, it is often said that load bearing devices, such as joint replacement prostheses or external fixators, cause bone to adapt according to Wolff's law. In this article, the scientific basis for Wolff's law is described in the light of recently developed biomechanical theories of bone behaviour.

Background and purpose - Radiostereometric analysis (RSA) is an accurate method for measurement of early migration of implants. Since a relation has been shown between early migration and future loosening of total knee and hip prostheses, RSA plays an important role in the development and evaluation of prostheses. However, there have been few RSA studies of the upper limb, and the value of RSA ...

The goal of this paper is to summarize and present the types of orthopaedic implants and hip prostheses, the biocompatible materials used and the conventional and unconventional processing technologies used to make them.

Sensory feedback is critical to the performance of neural prostheses that restore movement control after neurological injury. Recent advances in direct paralyzed arms present new requirements for miniaturized, low-power sensor systems. To address this challenge, we developed a fully-integrated wireless sensor-brain-machine interface (SBMI) system communicating key somatosensory signals, fingert...

Havelin LI, Espehaug B, Vollset SE, Engesaeter LB The effect of the type of cement on early revision of Charnley total hip prostheses. A review of eight thousand five hundred and seventy-nine primary arthroplasties from the Norwegian Arthroplasty Register. J Bone Joint Surg Am 1995 Oct;77(10):1543-50 http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=7593063&dopt=Abs...

One of the most successful techniques in restoration of degenerated joint functions is total hip replacement. This surgical approach includes removal of diseased cartilage and bone parts, and replacement by the corresponding joint prostheses. By using metal alloys, high quality plastic and polymer materials, orthopedic surgeons can reconstruct hip fractures, or replace a painful, dysfunctional ...

Open Access This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the source is credited. DOI 10.3109/17453674.2011.623575 Clinical practice guidelines are being used in many countries throughout the world to improve the quality of patient care. The Dutch O...

A model of tissue differentiation at the bone-implant interface is proposed. The basic hypothesis of the model is that the mechanical environment determines the tissue differentiation. The stimulus chosen is related to the bone-implant micromotions. Equations governing the evolution of the interfacial tissue are proposed and combined with a finite element code to determine the evolution of the ...