Testicular torsion is a serious medical condition that occurs when the spermatic cord twists, leading to a reduction or complete loss of blood flow to the testicle. While testicular torsion can occur spontaneously, trauma, either through blunt or penetrating injuries to the groin or scrotal area, is a significant risk factor. The condition requires immediate medical intervention, as delayed treatment can lead to permanent damage or even loss of the affected testicle.

Understanding testicular torsion

Testicular torsion typically results from a rotation of the spermatic cord, which contains the blood vessels, nerves, and the vas deferens that supply the testicle. When torsion occurs, blood flow to the testicle is compromised, leading to ischemia (reduced oxygen supply), which can cause irreversible damage if not addressed promptly. The testicle may become necrotic, and the risk of infertility or loss of the organ itself increases with time.

While the cause of testicular torsion is often idiopathic (spontaneous), trauma can act as a trigger for the twisting of the spermatic cord. This can happen following an impact to the scrotum or any event that disrupts the normal positioning of the testicles. Although testicular torsion is most commonly seen in adolescents, it can occur at any age, including in adults.

Mechanisms of trauma-induced testicular torsion

Trauma-induced testicular torsion can occur from various types of injuries, such as:

1. Blunt Trauma: This is the most common type of trauma leading to testicular torsion. It may occur during sports activities (e.g., football, soccer), accidents, or physical altercations. A direct blow to the scrotum may cause the testicle to rotate within the scrotum, thereby twisting the spermatic cord
2. Penetrating Trauma: Although less common, penetrating injuries to the scrotum, such as those caused by sharp objects or, in the case of gunshot wounds, can also lead to testicular torsion. In such cases, the injury may displace or manipulate the testicle to induce torsion
3. Surgical or Medical Manipulation: Sometimes, trauma can result from medical interventions, such as catheterisation or surgery. If the testicle is not securely anchored within the scrotum during such procedures, torsion may occur
4. High-Impact Movements: Certain sports or physical activities involving jumping or sudden directional changes can sometimes lead to torsion of the testicle. The forceful twisting or contortion of the body may contribute to the rotation of the spermatic cord

Symptoms of testicular torsion following trauma

The clinical presentation of testicular torsion after trauma is typically marked by severe pain and swelling in the affected testicle. Other signs and symptoms include:

• Sudden, sharp, or throbbing pain in the scrotum, often accompanied by nausea and vomiting
• Swelling and redness of the scrotum
• Abnormal testicle position (often higher or at an unusual angle within the scrotum)
• Absence of the cremasteric reflex (the reflexive contraction of the scrotal muscle in response to light touch or cold)
• The patient may sometimes have difficulty walking or moving due to the pain

In instances where trauma has caused torsion, symptoms may be exacerbated immediately following the injury. This is especially important, as prompt medical evaluation is necessary to differentiate testicular torsion from other conditions, such as epididymitis or a hernia, that might present with similar symptoms.

Diagnosis

Diagnosing testicular torsion is time-sensitive and typically requires a thorough clinical examination. The physician will assess the patient’s medical history, recent trauma, and the onset of symptoms. Key diagnostic tools include:

• Physical Examination: A testicular exam can reveal tenderness, swelling, and abnormal positioning of the testicle. The absence of the cremasteric reflex is a significant indicator of torsion
• Scrotal Ultrasound: This imaging technique is essential for evaluating blood flow to the testicle. A Doppler ultrasound can confirm the diagnosis by showing reduced or absent blood flow to the affected testicle
• Colour Doppler Ultrasound: This advanced imaging technique allows for better visualisation of blood flow and can help confirm testicular torsion with greater sensitivity and specificity

Treatment and management

Testicular torsion is a medical emergency. Once the condition is suspected, immediate surgical intervention is required to untwist the spermatic cord and restore blood flow to the testicle. Time is critical in treatment success; ideally, detorsion should occur within six hours of symptom onset to preserve the testicle. Beyond this window, the chances of saving the testicle diminish significantly, and irreversible damage may occur.

The primary treatment modalities for testicular torsion are:

1. Surgical Detorsion: If torsion is diagnosed, surgery is performed to untwist the spermatic cord and restore blood flow. This procedure is typically done under general anaesthesia
2. Orchiectomy: In severe cases where the testicle has undergone extensive necrosis, the affected testicle may need to be removed surgically (orchiectomy) to prevent systemic complications
3. Fixation: After detorsion, the testicle is often fixed to the scrotum (orchidopexy) to prevent future episodes of torsion. This procedure involves suturing the testicle to the scrotal wall, ensuring that it remains in position
4. Postoperative Care: Following surgery, patients are monitored for any signs of infection or complications, and pain management is provided

Prevention of trauma-induced testicular torsion

While traumatic injuries are sometimes unavoidable, certain preventive measures can reduce the risk of testicular torsion following trauma:

• Protective Gear: In high-risk activities, such as contact sports, wearing appropriate protective equipment, like an athletic cup, can help protect the testicles from blunt trauma
• Education: Raising awareness about the symptoms of testicular torsion and the importance of seeking immediate medical attention can improve outcomes for those affected by trauma-induced torsion
• Post-Injury Monitoring: Individuals who have experienced blunt trauma to the groin should be closely monitored for signs of testicular torsion, especially if they experience severe scrotal pain or swelling

Conclusion

Testicular torsion is a life-threatening condition that, although often spontaneous, can also arise as a complication of trauma. Whether the injury is blunt or penetrating, the twisted spermatic cord can quickly compromise blood flow to the testicle, leading to irreversible damage if not treated promptly. Early recognition of symptoms, timely surgical intervention, and preventative measures in high-risk activities can help reduce the incidence of testicular torsion and preserve testicular function.

Frequently asked questions

How does trauma cause testicular torsion?

Trauma can cause testicular torsion when it induces the contraction of the cremaster muscle surrounding the spermatic cord. This results in the spermatic cord twisting and cutting the blood supply to the testicle. This can happen when there are predisposing factors, like a bell clapper deformity, where the testicles hang freely in the scrotum. 

What is the most serious complication of testicular torsion?

The most serious complication of testicular torsion is that one may have their testicle surgically removed. Without surgical removal, there is a chance of infection beginning and spreading across the bloodstream. Consequently, the removal of testicles will result in fertility problems..

Can you visually tell if you have testicular torsion?

Although testicular torsion can be seen as a minor lump on the testicle, it is a minor symptom, such as severe pain in the scrotum and its swelling, that indicates testicular torsion.

Can you physically feel testicular torsion?

Yes, testicular torsion can be felt as a sudden, severe pain in the scrotum and one of the testicles. Other symptoms include swelling, nausea, and vomiting

Some symptoms to look out for are:

• Swelling, especially on one side of the scrotum
• Nausea and vomiting
• Pain in the lower abdomen or thigh
• One testicle appears to be higher than the other
• Difficulty walking
• Discolouration (red, purple, brown, black) in the scrotum
• Peeing more than usual
• Fever