A 26 years male person has got injury to mid arm patient developed wrist drop, finger drop, loss of sensation and dorsum of hand, patient is able to do elbow extension, the diagnosis is
**Core Concept**
The patient's presentation is consistent with a radial nerve injury, which affects the function of the radial nerve's motor and sensory branches. The radial nerve supplies muscles responsible for wrist extension, finger extension, and sensation to the back of the hand.
**Why the Correct Answer is Right**
The patient's symptoms, including wrist drop, finger drop, and loss of sensation on the dorsum of the hand, are classic signs of radial nerve palsy. The radial nerve injury has likely occurred at the level of the mid-arm, where the radial nerve is susceptible to damage from fractures or compression. The patient's ability to extend the elbow suggests that the triceps brachii muscle, innervated by the radial nerve, is still intact. However, the loss of wrist and finger extension, as well as sensory loss, confirms radial nerve damage.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not provided, so we cannot evaluate its correctness.
* **Option B:** This option is not provided, so we cannot evaluate its correctness.
* **Option C:** This option is not provided, so we cannot evaluate its correctness.
* **Option D:** This option is not provided, so we cannot evaluate its correctness.
**Clinical Pearl / High-Yield Fact**
Radial nerve injuries often occur in conjunction with mid-shaft humerus fractures. In such cases, the radial nerve may be stretched or compressed, leading to palsy. It's essential to examine patients with humerus fractures for signs of radial nerve damage, as early recognition and treatment can prevent long-term disability.
**Correct Answer:** .