**Core Concept**
Orchidopexy, also known as orchiopexy, is a surgical procedure to move an undescended testis into the scrotum and attach it to the scrotal wall. This procedure aims to correct the anatomical abnormality, improve fertility, and reduce the risk of testicular cancer.

**Why the Correct Answer is Right**
The correct answer is related to the benefits of orchidopexy in undescended testes. Orchidopexy decreases the risk of testicular torsion, which is a life-threatening emergency that requires immediate medical attention. By moving the testis into the scrotum, the risk of torsion is significantly reduced. Additionally, orchidopexy can improve fertility by allowing for proper testicular development and function. However, one of the exceptions where orchidopexy may not have a significant impact is on the risk of testicular cancer.

**Why Each Wrong Option is Incorrect**
* **Option A:** The risk of testicular cancer is actually not significantly decreased by orchidopexy, although the procedure may still have some benefits in terms of cancer detection and treatment.
* **Option B:** Orchidopexy does not decrease the risk of epididymal obstruction, which is a common complication of undescended testes.
* **Option C:** The risk of cryptorchidism-related complications, such as infertility and testicular cancer, is not entirely eliminated by orchidopexy.

**Clinical Pearl / High-Yield Fact**
It is essential to note that orchidopexy should be performed before the age of 1 year to maximize the benefits and minimize the risks associated with undescended testes.

**Correct Answer: A. The risk of testicular cancer is not significantly decreased by orchidopexy.**