Orthopedic Medical Devices Study Guide Flashcards
Describe rationale for undergoing a total hip replacement surgery
to reduce hip pain and improve motion in the hip
What are the causes that necessitate total hip replacement surgeries.
osteoarthritis
osteoporosis
injury
bone tumors
State and describe the various hip replacement devices currently available.
- Metal-on-Metal –All metal ball and cup
- Metal-on-Polyethylene (poly) –“Poly cup with a metal ball
- Ceramic-on-Polyethylene (poly) –Poly cup with a ceramic ball
- Ceramic-on-Ceramic –Ceramic cup and ball
What are the benefits of using a ceramic-on-ceramic hip implant
it has the lowest wear rate
- no inflammation, bone loss
it is very reliable and lasts very long
State and describe two orthopedic medical devices
total knee replacement
hip replacement
What are the common complications / issues that arise after total hip replacement surgeries?
• Dislocation – Most common issue – Hip ball can come out of socket • Osteolysis – Polyethylene wear debris – Inflammatory process – Loosening of hip implant • Metal sensitivity – Metal debris
What are the common complications / issues that arise after knee replacement surgeries
• Complications –Loosening or fracture of the device components –Joint instability and dislocation –Component misalignment and breakdown –Bone fracture –Swelling and joint pain –Infections –Osteolysis
State two conditions that may require spine surgery
– Spinal Stenosis (Narrowing of Spinal Canal/Foramen)
– Vertebral Fractures
– Back Pain
– Scoliosis
State and describe the two major categories of spinal implant devices
–Fusion Devices and Technique= joining of two or more vertebrae using bone tissue from patient or donor, fused vertebrae component
–Fixation Devices and Techniques-injured or dislodged vertebrae may also be faceted together by non-fusion techniques
