Recycling. Extraction and Recovery Techniques. Cementation.

Techniques in Cementation for Hip Hemiarthroplasty

Hip fractures in the elderly population remain a significant public health concern. With a rise in the incidence of osteoporosis, orthopaedic surgeons must be familiar with different fixation options in both trauma and arthroplasty to minimize complications and implant failure following treatment of femoral neck fractures. Cemented hip hemiarthroplasty is a reliable method for restoring functio...

Tibial component fixation with cement: full- versus surface-cementation techniques.

Despite excellent outcomes with cemented tibial components in total knee arthroplasty, it still is debated whether the tibial stem should be cemented and what the optimal tibial stem design should be. Proponents of full cementation of the tibial stem and component state that better short-term and long-term component fixation is achieved when full cementation is used. Advocates for surface cemen...

Optimal Groundwater Extraction and Water Recycling

Extraction techniques.

Dental extractions are a very common veterinary procedure. As common as they are, they are not a simple undertaking and should be approached with the same depth of preparation as any other surgical procedure. Regardless of size of the tooth, all extractions start with the 9 steps used for simple single-root extractions. These are: obtain consent, expose a dental radiograph, obtain proper lighti...

Recycling Techniques of Polyolefins from Plastic Wastes

Disposing of plastic wastes to landfill is becoming undesirable due to legislation pressures, rising costs and the poor biodegradability of commonly used polymers. In addition, incineration meets with strong societal opposition. Therefore, recycling either mechanical or chemical, seems to be the only route of plastic wastes management towards sustainability. Polyolefins, mainly polyethylene (LD...