A 60-year old female had fallen in the bathroom and she is not able to stand on her feet. On examination, her right leg was in external rotation and was not able to move her leg. There was tenderness in Scarpa’s triangle. There is no history of fever. X-ray shows no fracture line. What is the nest step of management
**Core Concept**
The patient is presenting with a hip injury, specifically a hip dislocation, which is a common consequence of a fall in the elderly population. The external rotation of the right leg and inability to move it suggest a posterior dislocation of the hip, where the femoral head is displaced out of the acetabulum.
**Why the Correct Answer is Right**
The management of a posterior hip dislocation involves reduction of the dislocation under anesthesia, followed by immobilization in a hip spica cast or a traction pin to prevent further injury and promote healing. The tenderness in Scarpa's triangle, which is the area bounded by the inguinal ligament, the femoral vessels, and the sartorius muscle, is a classic sign of a posterior hip dislocation. The absence of a fracture line on the X-ray further supports the diagnosis of a dislocation. The patient's inability to stand on her feet and the external rotation of the leg are also consistent with a posterior dislocation.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because a hip spica cast is not the initial management for a posterior hip dislocation. The correct initial management involves reduction of the dislocation under anesthesia.
**Option B:** This option is incorrect because a traction pin is used to immobilize the hip after reduction, not as an initial management step. Furthermore, the use of a traction pin requires careful consideration and expertise.
**Option C:** This option is incorrect because a hip replacement surgery is not the immediate next step in managing a posterior hip dislocation. The initial management involves reduction and immobilization.
**Clinical Pearl / High-Yield Fact**
In cases of hip dislocation, particularly posterior dislocations, the femoral artery may be compromised, leading to ischemia of the lower extremity. A thorough vascular examination and possible angiography may be necessary to assess for potential vascular injury.
**Correct Answer:** B. Reduction of the dislocation under anesthesia followed by immobilization in a hip spica cast or a traction pin is the next step of management.