Q. The implant used in given picture is composed of all except ?
1. Nickel
2. Vanadium
3. Titanium
4. Aluminium
Answer -
Nickel
The picture depicts an intramedullary nail used in pediatric femur fracture fixation thus appears as TENS. TENS stands for Titanium Elastic Nailing System. The implant is made of titanium which is commonly composed of Titanium along with Aluminium and Vanadium (Ti-Al-6V).
Stainless steel implants used in orthopaedics are mostly made of steel grade 316L. here L stands for Low carbon. It has many alloys and nickel is one of them
Nickel is common cause behind metal hypersensitivity to metal implants.
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