Final answer:
The proper treatment for a hip joint injury is to apply a traction splint. Broken hips often require hip arthroplasty, and physical therapy is key in recovery.
Step-by-step explanation:
The treatment for a trauma victim who has sustained a hip joint injury is to apply a traction splint to the injured leg, which is the first option provided. The hip joint, being prone to injuries such as fractures due to conditions like osteoporosis, requires proper care to prevent further damage. In the case of a broken hip, while hip arthroplasty or joint replacement may eventually be necessary, immediate treatment aims to stabilize the injury until surgery can be performed, if needed. For other joint injuries, such as ankle sprains, the RICE technique (Rest, Ice, Compression, and Elevation) is recommended. Additionally, following any form of joint injury or surgery, a comprehensive and appropriate physical therapy plan is crucial for recovery and regaining mobility.