Which instrument appears as a pencil-thin instrument with a camera and light at the end?

Which instrument appears as a pencil-thin instrument with a camera and light at the end?

• A. Mayo-Hegar Needle Holder
• B. Arthroscope
• C. Crile-Wood Needle Holder
• D. Guthrie Retractor

Answer: (B)

When you think about tools that let you look inside a joint without large incisions, you're dealing with endoscopic visualization. An arthroscope is designed for this purpose: it’s a pencil-thin instrument that houses a camera and a light at its tip, so the surgeon can view the interior of a joint on a monitor while working through small entry incisions. This combination of slender profile and built-in optical visualization distinguishes it from other instruments. The other instruments serve different tasks. Needle holders like Mayo-Hegar and Crile-Wood are designed to grasp and drive suturing needles and are not equipped with cameras or lights. A Guthrie retractor is used to hold tissue apart for exposure and likewise has no camera or illumination.

When you think about tools that let you look inside a joint without large incisions, you're dealing with endoscopic visualization. An arthroscope is designed for this purpose: it’s a pencil-thin instrument that houses a camera and a light at its tip, so the surgeon can view the interior of a joint on a monitor while working through small entry incisions. This combination of slender profile and built-in optical visualization distinguishes it from other instruments.

The other instruments serve different tasks. Needle holders like Mayo-Hegar and Crile-Wood are designed to grasp and drive suturing needles and are not equipped with cameras or lights. A Guthrie retractor is used to hold tissue apart for exposure and likewise has no camera or illumination.