Testicular torsion: straight to theatre
The case
A 16-year-old boy presents to the emergency department with sudden severe left scrotal pain that began 2.5 hours ago at school. He is otherwise well, with no urethral discharge, dysuria or trauma. Heart rate is 110/min and he is afebrile. The left testis is markedly tender, high-riding and lies transversely; the left cremasteric reflex is absent. Urine dipstick is negative for leucocytes and nitrites. Colour Doppler ultrasound performed immediately shows absent blood flow in the left testis with preserved flow on the right. The family ask whether manual detorsion should be attempted in the emergency department before theatre. What is the most appropriate next management step?
Options
- AImmediate scrotal exploration with detorsion and bilateral orchidopexy
- BIntravenous antibiotics and observation
- CRepeat Doppler ultrasound before surgery
- DManual detorsion, then outpatient review
- ENeedle aspiration of the scrotum
Think it through before you read on. Which single option is best, and why are the other four wrong?
Show the answer and explanation
Answer
A. Immediate scrotal exploration with detorsion and bilateral orchidopexy
Why this is the right answer
Testicular torsion is a surgical emergency. The spermatic cord twists, cuts off the blood supply, and the testis dies unless it is untwisted quickly. Salvage rates are above 90% within 6 hours of onset, fall to about 50% at 12 hours and are near zero after 24 hours.
This boy has every classic feature: sudden severe pain, adolescent age (peak 12 to 18 years), a high-riding transverse testis, an absent cremasteric reflex, and a clean urine. Doppler confirms absent flow. In fact, when the clinical picture is this clear, ultrasound should not delay surgery; it is useful mainly when the diagnosis is uncertain.
The treatment is immediate surgical exploration, detorsion, assessment of viability and fixation (orchidopexy) of the affected testis. The other testis is fixed at the same operation, because the anatomical abnormality that allows torsion (the 'bell-clapper' deformity) is usually bilateral. A non-viable testis is removed. Therapeutic Guidelines and Royal Children's Hospital guidance both direct that suspected torsion goes straight to theatre.
Manual detorsion (rotating the testis outward, 'opening the book') can be attempted as a temporary measure only if surgery will be delayed, for example during transfer from a remote site. Even if it relieves pain, the patient still needs urgent operative fixation, because partial detorsion or retorsion is common.
The differentials are epididymo-orchitis (gradual onset, fever, urinary symptoms, older patients) and torsion of the testicular appendage (a 'blue dot' at the upper pole, preserved flow). Neither fits here.
Why the other options are wrong
- B
Torsion is ischaemia, not infection; antibiotics and observation lose the testis.
- C
Flow is already absent; repeating the scan wastes salvage time.
- D
Manual detorsion is a bridge to surgery, not a treatment; the testis must be explored and fixed the same day.
- E
Aspiration has no role; the problem is a twisted cord, not fluid.
High-yield takeaway
Suspected testicular torsion goes to theatre immediately for detorsion and bilateral orchidopexy; imaging and manual detorsion must never delay surgery.
Reference: Royal Children's Hospital Melbourne Clinical Practice Guideline: Acute scrotal pain or swelling (and Therapeutic Guidelines) (2020)
Common questions
How long can a torted testis survive?
Salvage is above 90% within 6 hours, about 50% at 12 hours and close to zero after 24 hours.
Why is the other testis fixed at surgery?
The bell-clapper deformity that allows torsion is usually present on both sides, so the unaffected testis is at risk too.
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