Testicular torsion — diagnosis, TWIST and the six-hour clock

This is testicular torsion until proven otherwise: sudden severe unilateral scrotal pain with vomiting, high-riding horizontal testis and absent cremasteric reflex in a pubertal male. The salvage clock started at 03:00, not at arrival — he is already ~2.5 hours into ischaemia; target theatre well inside the six-hour high-salvage window (symptoms under six hours predict salvage^[14]; orchiectomy risk rises after six and a half hours^[13]; ≈90–100% salvage <6 h operational band, falling steeply thereafter).

TWIST score (hard testis 2, absent cremasteric 1, nausea/vomiting 1, high-riding 1, scrotal swelling 2): this presentation scores in the high-risk band (5–7) when swelling/hardness are present — proceed to immediate surgical exploration without imaging delay.^[6][8] Doppler ultrasound is reserved for intermediate/indeterminate cases and must never postpone theatre when clinical probability is high.

Immediate ED actions:

1. Analgesia; keep NBM; urgent urology/paediatric surgery activation; document pain-onset time.
2. Attempt manual detorsion as a bridge if theatre is not immediate: “open book” — rotate the testis medial to lateral (as if opening a book); stop if pain worsens; success is complete pain relief and lower lie with return of Doppler flow, but surgery still required for definitive fixation.^[4]
3. Consent pathway for exploration ± orchidectomy; explain bilateral orchiopexy because the deformity may be bilateral, with late loss approaching 50 per cent even after apparent salvage.^[4][9]
4. Do not start antibiotics as if epididymo-orchitis in this high-risk adolescent without excluding torsion.

Definitive care: scrotal exploration, detorsion, assess viability, bilateral fixation if viable; orchidectomy if necrotic with contralateral fixation; post-op follow-up and fertility counselling if delayed (late loss must be relayed to families even after salvage).^[9][4]