CPT® Code 69661

1. Indications

The stapedectomy or stapedotomy procedure, specifically CPT® Code 69661, is indicated for patients experiencing conductive hearing loss due to the fixation of the stapes bone, primarily resulting from otosclerosis. This condition leads to the stapes becoming immobile, which impairs sound transmission to the inner ear. The procedure is performed to restore hearing by re-establishing ossicular continuity, which may involve the use of foreign material or the specific technique of footplate drillout.

• Conductive Hearing Loss - A condition where sound is not conducted efficiently through the outer ear canal to the eardrum and the tiny bones of the middle ear.
• Otosclerosis - A disease characterized by abnormal bone growth in the middle ear, leading to the fixation of the stapes and subsequent hearing loss.

2. Procedure

The procedure for CPT® Code 69661 involves several critical steps to ensure the successful treatment of stapes fixation. Initially, the surgeon makes an incision in the posterior ear canal wall to create a tympanomeatal flap. This flap is carefully elevated to expose the ossicles of the middle ear, allowing for thorough inspection. Depending on the extent of the otosclerosis, the surgeon may perform a stapedectomy, which involves excising part or all of the stapes, or a stapedotomy, where the stapes is drilled to create an opening. In the case of 69661, the procedure specifically includes a footplate drillout. This step involves downfracturing the upper portion of the stapes, leaving the fixed footplate in place within the oval window. A laser or drill is then utilized to create a small hole in the footplate. Following this, a prosthetic rod is inserted over the incus and into the newly created hole in the footplate, facilitating the transmission of sound vibrations from the incus to the inner ear. The surgeon confirms that movement is effectively transmitted through the prosthesis into the inner ear. Finally, any surgically created defects in the oval window are repaired, which may involve the use of a mesodermal graft or the placement of gelfilm or gelfoam. Upon completion of the procedure, the tympanomeatal flap is replaced, and the meatal incision is closed with sutures to promote healing.

• Step 1: Incision and Flap Creation - An incision is made in the posterior ear canal wall to create a tympanomeatal flap, which is elevated to expose the middle ear ossicles.
• Step 2: Stapes Procedure - Depending on the condition, either a stapedectomy or stapedotomy is performed to address the fixation of the stapes.
• Step 3: Footplate Drillout - The upper portion of the stapes is removed, and a small hole is drilled into the fixed footplate.
• Step 4: Prosthesis Placement - A prosthetic rod is placed over the incus and into the hole in the footplate to restore sound transmission.
• Step 5: Repair and Closure - Any defects are repaired, and the tympanomeatal flap is replaced and sutured closed.

3. Post-Procedure

After the completion of the stapedectomy or stapedotomy with footplate drillout, patients are typically monitored for any immediate complications. Post-procedure care may include instructions on activity restrictions to promote healing and minimize the risk of complications such as infection or bleeding. Patients may experience some discomfort or temporary changes in hearing as they recover. Follow-up appointments are essential to assess the healing process and the effectiveness of the procedure in restoring hearing. Any additional care, such as the management of pain or the use of antibiotics, will be determined by the physician based on the individual patient's needs.