Stapes surgery in patients with osteogenesis imperfecta.

Area of Science:

• Otolaryngology
• Genetics
• Audiology

Background:

• Osteogenesis imperfecta (OI) is a rare genetic disorder characterized by bone fragility.
• Conductive hearing loss is a common complication of OI, often involving the middle ear ossicles.
• Stapedectomy is a surgical procedure to restore hearing in cases of otosclerosis.

Observation:

• Thirty stapedectomies were performed on 24 patients diagnosed with osteogenesis imperfecta.
• Surgical observations included thin ossicles, crural fractures, and unique footplate characteristics (thick, granular, mushy).
• A novel observation was deficient, short crura in three patients, failing to contact the footplate.

Findings:

• Stapedectomy is a viable surgical option for conductive hearing loss in patients with osteogenesis imperfecta.
• The surgical procedure yielded predictable hearing improvement, comparable to outcomes in otosclerosis patients.
• Specific intraoperative findings in OI patients necessitate careful surgical technique, particularly with the incus and footplate.

Implications:

• Stapedectomy can effectively address hearing loss in individuals with osteogenesis imperfecta.
• The findings suggest OI is not an absolute contraindication for stapedectomy.
• Further research into the specific otic capsule manifestations in OI may refine surgical approaches.