**Core Concept**
Gallows traction is a type of orthopedic traction used to manage fractures, particularly in the lower limbs. It involves suspending the affected limb from a frame or a pulley system to apply a specific force and direction to facilitate healing. The technique is often employed in the treatment of hip fractures, especially in elderly patients or those with poor bone quality.

**Why the Correct Answer is Right**
Gallows traction works by applying a downward force to the femur (thigh bone), which helps to reduce the fracture and promote healing. This type of traction is particularly useful in cases where the patient is unable to bear weight or undergo surgery. The frame or pulley system allows for controlled movement and adjustment of the traction force, ensuring optimal alignment and stability of the fracture site. The use of gallows traction can also help to alleviate pain and swelling in the affected limb.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because gallows traction is not typically used for upper limb fractures, which often require different types of traction or immobilization.
**Option B:** This option is incorrect because while hip fractures may require traction, gallows traction is specifically designed for this purpose and is not a general term for hip fracture management.
**Option C:** This option is incorrect because while traction may be used to manage pelvic fractures, gallows traction is not the primary method used for this purpose.

**Clinical Pearl / High-Yield Fact**
It's essential to note that gallows traction should only be used under the guidance of an experienced orthopedic surgeon or specialist, as improper application can lead to complications such as nerve damage or further fracture displacement.

**Correct Answer: C. Hip fractures.**