Outcomes of Autologous Versus Irradiated Homologous Costal Cartilage Graft in Rhinoplasty

Overview

When there is not enough septal cartilage for grafting, surgeons choose between harvesting the patient's own rib and using irradiated donor rib. The authors compared the two at a single academic institution, measuring infection, resorption, warping and how often a further operation was needed, along with how long the surgery took.

Sections of note

• Design: retrospective analysis at one academic institution, 143 patients.
• Median age 48 years, interquartile range 35 to 57.5; 62.2 percent female.
• 61 patients, 42.7 percent, received their own rib cartilage; 82 patients, 57.3 percent, received irradiated donor cartilage.
• Revision rates: 14.8 percent for own cartilage versus 14.6 percent for donor, p equal to 0.98.
• Infection rates: 4.9 percent versus 3.7 percent, p equal to 0.71.
• Most common reasons for revision: deformity after surgery and nasal blockage.
• Surgical time was shorter with donor cartilage, p less than 0.01.
• Mean follow up: 26.5 months for own cartilage, 16 months for donor cartilage.

What it means for a patient

• Donor rib performed comparably to your own rib on the outcomes that matter, while avoiding a chest incision and shortening the operation.
• Revision was needed in roughly one in seven patients in both groups, which reflects the difficulty of cases requiring rib rather than the graft material itself.
• Follow up was longer for the own cartilage group, 26.5 versus 16 months, so late problems had more time to appear in that group.
• Limits: retrospective, not randomized, single institution, and unequal follow up between groups.

Why this paper matters

The choice between harvesting rib and using banked donor rib turns on whether donor tissue shrinks, bends or becomes infected more often. A direct institutional comparison addresses that. Unequal follow up and lack of randomization mean it supports rather than settles the equivalence claim.

Terms

• Autologous costal cartilage: rib cartilage taken from the patient's own body.
• Irradiated homologous costal cartilage: donor rib cartilage sterilized by radiation.
• Warping: bending or curling of a cartilage graft after placement.
• Resorption: gradual absorption and loss of graft volume by the body.
• Septorhinoplasty: nose surgery that reshapes the outside and straightens the septum.
• Interquartile range: the middle half of a set of values.