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2. Aortic valve replacement - Wikipedia

   en.wikipedia.org/wiki/Aortic_valve_replacement

   Aortic valve replacement is a cardiac surgery procedure whereby a failing aortic valve is replaced with an artificial heart valve.The aortic valve may need to be replaced because of aortic regurgitation (back flow), or if the valve is narrowed by stenosis.

3. Acetabulum - Wikipedia

   en.wikipedia.org/wiki/Acetabulum

   There are three bones of the os coxae (hip bone) that come together to form the acetabulum. Contributing a little more than two-fifths of the structure is the ischium, which provides lower and side boundaries to the acetabulum. The ilium forms the upper boundary, providing a little less than two-fifths of the structure of the acetabulum.

4. Dynamic hip screw - Wikipedia

   en.wikipedia.org/wiki/Dynamic_hip_screw

   Dynamic hip screw [ citation needed ] It is the most commonly used implant for extracapsular fractures of the hip, [ 1 ] which are common in older osteoporotic patients. There are 3 components of a dynamic hip screw, including a lag screw (inserted into the neck of the femur), a sideplate and several cortical screws (fixated into the proximal ...

5. Roof - Wikipedia

   en.wikipedia.org/wiki/Roof

   A roof (pl.: roofs or rooves) is the top covering of a building, including all materials and constructions necessary to support it on the walls of the building or on uprights, providing protection against rain, snow, sunlight, extremes of temperature, and wind. [1]

6. Ti-6Al-7Nb - Wikipedia

   en.wikipedia.org/wiki/Ti-6Al-7Nb

   It features high strength and has similar properties as the cytotoxic vanadium containing alloy Ti-6Al-4V. Ti-6Al-7Nb is used as a material for hip prostheses. [1] Ti―6Al―7Nb is one of the titanium alloys that built of hexagonal α phase (stabilised with aluminium) and regular body-centred phase β (stabilised with niobium).

7. Psoas major muscle - Wikipedia

   en.wikipedia.org/wiki/Psoas_major_muscle

   The psoas major (/ ˈ s oʊ. ə s / or / ˈ s oʊ. æ s /; from Ancient Greek: ψόᾱ, romanized: psóā, lit. 'muscles of the loins') is a long fusiform muscle located in the lateral lumbar region between the vertebral column and the brim of the lesser pelvis.