THE HANSSON TWIN HOOK

Hansson Twin Hook
Introduction
The Hansson Twin Hook is a new concept for the treatment of trochanteric hip fractures. Its development is based on the long and successful experience with the Hansson Pin System®. The Hansson Twin Hook offers a STRONG, STABLE FIXATION with MINIMAL SURGICAL TRAUMA.
Indications
The Hansson Twin Hook consists of two parts, an inner sliding tongue and an outer pin. The outer pin is 8.9 mm in diameter. Fixation in the femoral head is achieved by pushing the inner sliding tongue out through the proximal windows. The hooks are 4.6 mm in width and extend outward in a gentle curve 11 mm on each side of the outer pin.

The Hansson Twin Hook is used in combination with the Swemac Hip Plate or the Medoff Sliding Plate®.
Key Features and Benefits
Loading and deformation tests using cadaver femoral heads have shown that the Hansson Twin Hook behaves differently, compared to the Compression Hip Screw. In case of impaired sliding between the Twin Hook and the plate/barrel, the compressive forces are ­transmitted to the fixation of the Hansson Twin Hook in the femoral head rather than to the fracture.
If the compression screw moves, the bone is stripped. With the Hansson Twin Hook, instead of stripping the bone, the hooks will gradually bend, making this a more forgiving and durable fixation.

The Hansson Twin Hook gives 2-3 times better rotational resistance in cadaver femoral heads than a compression hip screw. Rotational stability of the Hansson Twin Hook in the plate barrel is ensured through bilateral flattening of the shaft to match the inside of the hip plate barrel.

Two hooks are positioned anterior and posterior with a total hook span of 31 mm. The hooks will be in contact with both cancellous and subchondral bone in the femoral head, providing a very good support against displacement.

PLATING OR NAILING

23 years male fracture femur ..fixed with LCDCP ... xray film taken after 2 month

LCP OR LOCKING NAIL??

she is 55 years old female with oblique fracture in lower third of femur with communition of posteromedial cortex. i fixed it with LCP with lag screw.

RADIAL HEAD PROSTHESIS

Regardless of whether the fracture is an isolated injury or associated with other lesions, internal fixation is the preferred option, providing that stable anatomical reduction can be achieved, so as to enable an exercise regime to be instituted immediately

If internal fixation is not possible, or if a successful outcome is uncertain, it should not be considered. The patient is not helped by IF that does not restore the anatomical pattern or which requires protective immobilization.

Hydrogel as a Repair Device for Torn Cartilages

Researchers at the University of Bradford's School of Engineering and the university's spinoff called AGT Sciences have been working on a new hydrogel with potential applications in orthopedics, wound care, and other clinical disciplines in which connective tissue matters.Here's what AGT says about its product, promoted as "cartilage repair gel":Our hydrogel is made up almost entirely of water, yet can thicken to produce a substance 100-1000 times stronger than any other gel of its kind.This is because it is composed of two very long elastic-like molecules that form strong covalent bonds with each other to form a 3D network, like a cage, that holds the water. By adjusting the number of bonds, the physico-chemical properties of the gel can be manipulated to make it thick, thin or sticky. The gel also has the capability to hold molecules of other substances, whether water soluble or water insoluble (e.g. oil).Much of the company’s development has been undertaken using polyvinyl alcohol (PVOH) as the co-polymer. Our innovation, derived from research undertaken by our scientists at the University of Bradford, is a unique cross-linker, "PD2000", that is capable of bonding with a range of co­polymers to form materials with a unique combination of useful properties.A summary of the features of this technology includes:# Physical and Chemical Properties Able to form a wide range of hydrogels with different physico-chemical properties# Able to vary the physical form ranging from liquid to a solid# Solid can be formed with very high water content (90%+)# Cross-linking reaction can complete unaffected by the presence of other substances# Very high mechanical strength maintained even with high (90%+) water content# Can be extruded into films# Temperature and radiation resistant# Cross-linking reaction is reversible when desiredRelease and Absorption Properties# Can be used for sustained release of incorporated substances by virtue of zero order kinetics# Can be used to generate microemulsions – with the added capability of being able to ‘burst’ and release# Hygrostatic – maintains level of hydrationToxicity and Cell Biology# Non-toxic and meets current safety regulations# Intrinsically bacterostatic# Can be used as a medium for tissue growth

MAKO Introduces RIO Robotic Arm for Orthopedic Surgeries

MAKO Surgical has announced the release of its RIO Robotic Arm Interactive Orthopedic System. On display at this week's American Academy of Orthopaedic Surgeons annual meeting in Las Vegas, the device is designed to assist surgeons during knee resurfacing operation, a minimally invasive type of surgery thought to be useful for younger, active patients with early osteoarthritis. Since the knee resurfacing is a notoriously difficult operation to perform, the hope is that such a robot will introduce stability and precision.

From MAKO'S press release

The RIO™ Robotic Arm Interactive Orthopedic System and the RESTORIS® MCK MultiCompartmental Knee System make bone and tissue sparing MAKOplasty® partial knee resurfacing available to a larger population of patients. Previously, it was only possible to perform this precision resurfacing surgery on the medial (inner) portion of the knee. Now it can be performed on the medial, patellofemoral (top) or both components of the knee, offering a large and growing population of patients with early to mid-stage osteoarthritis (OA) of the knee a less invasive treatment option than total knee replacement.
“The field of medical robotics is coming of age, and MAKO is committed to leading the way in orthopedic surgery,” said Dr. Maurice R. Ferré, President, Chief Executive Officer and Chairman of the MAKO Board of Directors. “The advancement of our technology with RIO™ and RESTORIS® MCK allows a greater number of patients with osteoarthritis to benefit from the precision and improved outcomes of MAKOplasty®. ”
MAKO’s robotic arm system is the first FDA-cleared robotic arm system for orthopedic surgery. It provides patient-specific, three-dimensional modeling for pre-surgical planning. As surgeons use the robotic arm to resurface the knee for placement of the implants, RIO™ provides real-time inter-operative visual, tactile and auditory feedback, enabling a high level of precision and optimal positioning of the implants.
MAKOplasty® provides the potential for improved surgical outcomes, with a less invasive partial knee resurfacing procedure that spares healthy bone and tissue, preserves ligaments and allows for a more rapid recovery and a more natural feeling knee.

a 65 years old lady with supracondylar with intercondylar fracture humrus , fracture fixed with locking reconstruction plate with interfragmentary lag screw and two k wires.