Which material is used as bone cement in orthopedic procedures and is abbreviated PMMA?

Which material is used as bone cement in orthopedic procedures and is abbreviated PMMA?

• A. Polymethyacrylate
• B. Polymethyl methacrylate
• C. Polyethylene
• D. Calcium phosphate

Answer: (A)

Polymethyl methacrylate is the material used as bone cement in orthopedic procedures, and its abbreviation is PMMA. This acrylic polymer is mixed with a liquid monomer and hardens in place to bond the implant to bone, filling gaps and creating a stable fixation. PMMA provides a rapid, strong, and radiopaque cement mantle that can be visualized on imaging. The misspelled term in the options isn’t the standard name for this cement. Polyethylene is a different material used mainly for bearing surfaces or liners in implants, not as bone cement. Calcium phosphate can be used as a bone substitute or graft material, but it does not function as the PMMA bone cement.

Polymethyl methacrylate is the material used as bone cement in orthopedic procedures, and its abbreviation is PMMA. This acrylic polymer is mixed with a liquid monomer and hardens in place to bond the implant to bone, filling gaps and creating a stable fixation. PMMA provides a rapid, strong, and radiopaque cement mantle that can be visualized on imaging.

The misspelled term in the options isn’t the standard name for this cement. Polyethylene is a different material used mainly for bearing surfaces or liners in implants, not as bone cement. Calcium phosphate can be used as a bone substitute or graft material, but it does not function as the PMMA bone cement.