Stahl's ear is a rare congenital ear deformity characterised by a third crus (cartilage ridge) extending across the upper ear, producing a pointed or 'elfin' appearance often described as a Spock ear. The deformity is present at birth and does not improve with growth. Surgical correction reshapes or removes the abnormal third crus to restore a natural helical contour.
Key Facts
What defines Stahl's ear
The normal ear has two crura (cartilage ridges) — superior and inferior — both arising from the antihelical fold. In Stahl's ear, a third abnormal crus appears, extending diagonally across the scapha (the channel between helix and antihelix) toward the helix rim. This third crus pulls the helix outward and upward, producing the characteristic pointed appearance.
The deformity is purely cartilaginous — the skin and underlying anatomy are normal. Hearing is unaffected. The condition is largely cosmetic but, like prominent ears, can cause significant social distress, especially in childhood.
Newborn ear moulding
If Stahl's ear is recognised within the first 6 weeks of life, non-surgical correction with ear moulding splints can reshape the soft neonatal cartilage. Maternal oestrogens circulating in the newborn keep cartilage pliable for this brief window. Splinting is worn 24 hours per day for 4–6 weeks and produces excellent results when started early. After 8 weeks of age, the cartilage hardens and surgical correction becomes the only effective option.
Surgical correction in children and adults
From age 6 onwards, Stahl's ear is corrected surgically. The procedure has two main components. First, the abnormal third crus is weakened or excised through cartilage scoring or partial wedge resection. Second, the helical rim is repositioned with sutures to restore the smooth curved outline. In severe cases, a small cartilage graft from the conchal bowl may be added to support the new contour.
Dr. Erdal performs Stahl's ear correction through a posterior incision identical to standard otoplasty, leaving no visible scarring from the front. The procedure takes 2–2.5 hours and uses the same recovery protocol as prominent ear surgery.
Results and limitations
Because Stahl's ear involves abnormal cartilage rather than soft tissue, results depend heavily on the severity of the third crus. Mild cases achieve near-perfect correction. Severe cases — where the third crus is broad and the helix is deeply distorted — may show a residual contour irregularity even after expert surgery. Revision rates are higher than for simple prominent ears (approximately 8–12 percent versus 3–5 percent).
Frequently Asked Questions
Is Stahl's ear inherited?
Most cases of Stahl's ear are sporadic — they appear without a family history. A small number of cases show autosomal dominant inheritance with variable expression, meaning a parent with mild Stahl's ear may have a child with a more pronounced deformity. Genetic counselling is rarely indicated.
Can it be corrected without surgery in adults?
No. Non-surgical correction with ear moulding splints works only in the first 6–8 weeks of life while cartilage remains soft from maternal oestrogens. After this window, the cartilage hardens permanently and surgical reshaping becomes the only option.
How is Stahl's ear different from prominent ears?
Prominent ears project away from the skull due to a poorly formed antihelical fold or oversized conchal bowl. Stahl's ear has a normal projection angle but an extra cartilage ridge (third crus) that creates a pointed shape. The two can coexist, and both can be corrected in the same operation.
Does it affect hearing?
No. Stahl's ear is purely an external cartilage deformity. The middle and inner ear structures responsible for hearing develop separately and are not affected. Audiometric testing typically shows normal hearing.
What is the success rate?
Mild and moderate Stahl's ear cases achieve excellent cosmetic correction in over 85 percent of patients in a single operation. Severe cases — where the third crus is broad and the helical contour is deeply distorted — have a higher revision rate of approximately 10–15 percent.