Ossiculoplasty with total ossicular replacement prosthesis and Omega Connector: early clinical results and functional measurements.
- Mantei T Department of Otolaryngology, Head and Neck Surgery, University Hospital of Zurich, Zurich, Switzerland. thomas.mantei@usz.ch
- Chatzimichalis M
- Sim JH
- Schrepfer T
- Vorburger M
- Huber AM
- 2011-07-07
Published in:
- Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology. - 2011
Adult
Cholesteatoma, Middle Ear
Ear Ossicles
Female
Follow-Up Studies
Humans
Male
Middle Aged
Ossicular Prosthesis
Ossicular Replacement
Otitis Media
Prospective Studies
Temporal Bone
Treatment Outcome
English
OBJECTIVE
Among other difficulties, achieving a stable position of a total ossicular replacement prosthesis (TORP) is demanding because of a limited view on the TORP-footplate interface and individual angles between the footplate and tympanic membrane. The Kurz Omega Connector aims at a simplified insertion of the TORP. The performance of total ossicular reconstruction using the Omega Connector was evaluated.
STUDY DESIGN
Prospective cohort study and experimental measurements with a fresh human temporal bone.
SETTING
Tertiary referral center.
PATIENTS
Seventeen consecutive patients receiving total ossicular reconstruction were included. Historical control group composed of 36 patients.
INTERVENTIONS
Total ossicular reconstruction using the Omega Connector.
MAIN OUTCOME MEASURES
(a) Handling of the TORP and Omega Connector intraoperatively, (b) functional short-term results compared with a historical control group, (c) sound transmission properties with 3 different connective positions between the TORP and the Omega Connector.
RESULTS
Placing the Omega Connector on the footplate and coupling the Omega Connector to the TORP was straightforward in 65% of cases. A stable final position of the TORP was obtained in 88% of cases. Mean (SD) preoperative and postoperative air-bone gaps were 36.00 (11.05) and 25.29 (12.25) dB and were almost identical with those in the historical control group (p = 0.9). In the experimental measurements, functional outcomes with "partial connection" showed almost the same results as those with "full connection."
CONCLUSION
The Omega Connector provides easy handling of the TORP. The short-term functional results were comparable to those achieved previously without the Omega Connector. The temporal bone measurement supports tolerance in connective position between the TORP and the Omega Connector.
Among other difficulties, achieving a stable position of a total ossicular replacement prosthesis (TORP) is demanding because of a limited view on the TORP-footplate interface and individual angles between the footplate and tympanic membrane. The Kurz Omega Connector aims at a simplified insertion of the TORP. The performance of total ossicular reconstruction using the Omega Connector was evaluated.
STUDY DESIGN
Prospective cohort study and experimental measurements with a fresh human temporal bone.
SETTING
Tertiary referral center.
PATIENTS
Seventeen consecutive patients receiving total ossicular reconstruction were included. Historical control group composed of 36 patients.
INTERVENTIONS
Total ossicular reconstruction using the Omega Connector.
MAIN OUTCOME MEASURES
(a) Handling of the TORP and Omega Connector intraoperatively, (b) functional short-term results compared with a historical control group, (c) sound transmission properties with 3 different connective positions between the TORP and the Omega Connector.
RESULTS
Placing the Omega Connector on the footplate and coupling the Omega Connector to the TORP was straightforward in 65% of cases. A stable final position of the TORP was obtained in 88% of cases. Mean (SD) preoperative and postoperative air-bone gaps were 36.00 (11.05) and 25.29 (12.25) dB and were almost identical with those in the historical control group (p = 0.9). In the experimental measurements, functional outcomes with "partial connection" showed almost the same results as those with "full connection."
CONCLUSION
The Omega Connector provides easy handling of the TORP. The short-term functional results were comparable to those achieved previously without the Omega Connector. The temporal bone measurement supports tolerance in connective position between the TORP and the Omega Connector.
- Language
-
- English
- Open access status
- green
- Identifiers
-
- DOI 10.1097/MAO.0b013e3182267e3b
- PMID 21730881
- Persistent URL
- https://sonar.ch/global/documents/146889
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