Samarra Journal of Engineering Science and Research

Osseointegration prosthetic limbs are garnering considerable
interest from both professionals and patients. Titanium alloy
implant prostheses provide superior performance compared to
conventional socket-based prostheses in mobility, comfort,
tactile perception, and overall patient satisfaction, thereby
improving a patient's independence and comfort. Osseo Sense is
an important aspect that enables the patient to perceive
enhanced tactile sensations with the prosthesis compared to a
conventional socket. Moreover, osseointegration is challenged by
limitations that require continuous investigation, including
infection and periprosthetic fracture. This study offers an
extensive review of the literature on osseointegrated prostheses,
highlighting their advantages and limitations, the various
systems utilizing this concept, the surgical techniques employed,
the application of surface modifications, and the selection of
suitable materials for different implant systems. Moreover, it is
essential to continuously enhance titanium alloys, such as Ti-
13Nb-13Zr, to resolve current implant-related issues. This study
emphasizes the necessity for increased multidisciplinary
research and the potential usefulness of the implant system once
existing limitations are resolved. This study offers an alternative
perspective on osseointegration, clarifying the latest
developments in the field.

There is an increased interest in natural fiber composite materials as
alternatives for metals in the manufacture of automotive hoods in
the automotive industry. This study aims to experimentally
investigate the mechanical properties of hybrid composites of
synthetic fibers carbon/glass and natural palm fibers in a polyester
matrix. Composites were manufactured by the vacuum-assisted
layering process, including carbon/glass hybrid laminates 45 wt. %
fibers, palm fiber laminates 30 wt. % fibers with unsaturated
polyester resin under ambient conditions in 24 hours. Test results
revealed that carbon/glass hybrid composites had excellent
mechanical properties in terms of tensile strength 274 MPa and
impact energy absorption capability 1.25-2.1 J, contrary to poor
mechanical strength and energy absorption capabilities of palm fiber
composite tensile strength 47 MPa; 0.25-0.44 J. Flexural test
confirmed the better mechanical resistance in bending of the hybrid
synthetic composite, resisting up to 9 kN load before failure, while
the palm fiber composite failed at a load of 1.58 kN due to brittleness
of its structure and weak interaction with the polyester matrix.
Despite having great benefits for the environment, due to mechanical
weaknesses, further fiber treatment may be required to improve
natural fiber material performance.