The first report of direct skeletal attachment method applying for tibia prosthetic leg in a chicken by cortical screw

This is the first report of successful method for direct skeletal attachment for invent tibia prosthetic leg in a chicken amputee by using 3.0 mm stainless steel cortical screw as an intramedullary bone stem for right tibia endoprosthesis leg part and using acrylic with some part of endotracheal tube as an exoprosthesis leg part. This surgery was performed in a chicken amputee without bone cement using. A chicken could stand and sometime walk after 15 days of surgery. No complication problem with a screw’s stump. This intramedullary bone stem technique by a screw can adapt using in other parts of long bone animal amputee. This technique can apply for invent endoprosthesis limb in other small animal amputees and can use intramedullary screw technique with other long bones such as femur, humerus, radius, and ulna because this technique uses only one stainless 316L screw so the surgery cost is not too much. The surgical procedure is not complicated and blood loss during surgery is not much so the risk for this technique is low

Comparison between new design interlocking nail with plate fixation and intramedullary pin with external skeletal fixation in long bone fracture in the dogs

New design interlocking nail and plate fixation was used in comminuted femur fracture in an old dog that the results showed primary bone healing and she had been quickly weight baring in fifteenth day after surgery, and could be walk in twenty day after operation. Another case was a young dog that showed transverse fracture of both humerus and one transverse fracture of femur that were repaired by intramedullary pin and external skeletal fixation. The results showed secondary bone healing of these three bone fractures and she could be walk after 2 months of operation. An old dog did not show any complication but a young dog showed pin migration in femur healing. This study revealed that the superior result in bone healing was found in rigid fixation by new design interlocking nail and plate fixation greater than intramedullary pin with external skeletal fixation

A hydraulic test stand for demonstrating the operation of Eaton’s energy recovery system (ERS)

Fuel cost represents a significant operating expense for owners and fleet managers of hydraulic off-highway vehicles. Further, the upcoming Tier IV compliance for off-highway applications will create further expense for after-treatment and cooling. Solutions that help address these factors motivate fleet operators to consider and pursue more fuelefficient hydraulic energy recovery systems. Electrical hybridization schemes are typically complex, expensive, and often do not satisfy customer payback expectations. This paper presents a hydraulic energy recovery architecture to realize energy recovery and utilization through a hydraulic hydro-mechanical transformer. The proposed system can significantly reduce hydraulic metering losses and recover energy from multiple services. The transformer enables recovered energy to be stored in a high-pressure accumulator, maximizing energy density. It can also provide system power management, potentially allowing for engine downsizing. A hydraulic test stand is used in the development of the transformer system. The test stand is easily adaptable to simulate transformer operations on an excavator by enabling selected mode valves. The transformer’s basic operations include shaft speed control, pressure transformation control, and output flow control. This paper presents the test results of the transformer’s basic operations on the test stand, which will enable a transformer’s full function on an excavator

Benefit of dorsal laminectomy without lumbosacral stabilization in lumbosacral traumatic cat

Two cats were diagnosed with depression of caudal equina spinal nerve and lumbosacral spinal trauma that revealed rapid improving clinical signs after 1 month of dorsal laminectomy at the region of lumbar and sacral vertebrae without internal and external stabilization devices. This report showed that dorsal laminectomy was a powerful procedure for decompression caudal equina spinal injuries in stable lumbosacral vertebral trauma in cats without ancillary fixation methods. Dorsal laminectomy is valuable technique for correction of fracture/luxation of vertebrae that this procedure can reduce spinal cord edema, and axonal disruption. Stabilization of vertebrae by the orthopedic implants may be not necessary in small cat that has enough vertebral stability as the same in two these cases