The modern orthopaedic implants for applications in hips, knees, shoulders, and spines are composed of hard metal alloys or ceramics a tribological sub-component that is made soft materials, with good frictional properties—e.g., UHMWPE (Ultra High Molecule Weight Polyethylene). need to be machined into their final shape after the polymerization consolidation blank profile near net shaped implan...

As a result of the rising threats of terrorism, airport security has become a major issue. Patients with orthopaedic implants are concerned that they may activate alarms at airport security gates. A literature overview showed that the activation rate of the alarm by hand-held detectors is higher than for arch detectors (100% versus 56%). Arch detection rate has significantly increased from 0% b...

Staphylococcus spp meticillin resistant infection can be treated with Linezolid. This is a case report of an orthopaedic implant infection in a 60 year-old male treated orally with Linezolid and Rifampicin for three months after one-stage arthroplasty. This is possible provided that platelet count is closely monitored throughout the course of treatment.

In this review the pathophysiology of chronic bacterial osteomyelitis is summarised, focusing on how bacteria succeed so often in overcoming both host defence mechanisms and antibiotic agents. Bacteria adhere to bone matrix and orthopaedic implants via receptors to fibronectin and to other structural proteins. They subsequently elude host defences and antibiotics by "hiding" intracellularly, by...

It is a clinical challenge to obtain a sufficient orthopaedic implant fixation in weak osteoporotic bone. When the primary implant fixation is poor, micromotions occur at the bone-implant interface, activating osteoclasts, which leads to implant loosening. Bisphosphonate can be used to prevent the osteoclastic response, but when administered systemically its bioavailability is low and the time ...

The antibiotics are a very important adjuvant treatment in the infectious ostheoarticular pathology. Prevention of deep surgical wound and implant related infections in the surgical treatment of fractures and in the total hip and knee arthroplasty is made by prophylactic administration of antibiotics. The antibiotics are also used as a treatment for the ostheoarticular infections, but the antib...

Additive manufacturing (AM) allows for the fabrication of custom orthopaedic implant devices which have complex geometries and similar mechanical properties to bone. This paper reviews corrosion, fatigue wear AM Ti alloys confirm their safety use in implants. Specifically, lattice are highlighted due improved osseointegration better modulus matching with that bone, making them an attractive opt...

To determine the factors influencing surgeons' choice of implants for total hip arthroplasty (THA) and total knee arthroplasty (TKA), 650 surveys were mailed to all active members of the American Association of Hip and Knee Surgeons practicing in the United States; 364 surveys (56%) were completed and returned. Analysis revealed that the average number of total hip and total knee replacements p...

Metallic biomaterials are engineered systems designed to provide internal support to biological tissues and they are being used largely in joint replacements, dental implants, orthopaedic fixations and stents. Higher biomaterial usage is associated with an increased incidence of implant-related complications due to poor implant integration, inflammation, mechanical instability, necrosis and inf...

A myriad of orthopaedic injuries require surgical fixation of torn connective tissue to an osseous insertion site with either direct repair or reconstruction with a soft-tissue graft. Numerous factors influence the strength of a soft-tissue-to-bone fixation construct, including tissue quality, implant strength, contact area and pressure, and tensioning. Each fixation technique differs with resp...