Endoscopic Cartilage Umberlla Ossiculoplasty: As Total Ossicular Replacement Using Endoscope Holder

AbstractSoft-tissue reaction to ceramic ossicular replacement prostheses (CORP) has been evaluated histologically in rabbits and humans. One week after implantation, severe inflammatory and foreign body reaction was observed in the fibrous connective tissue surrounding the prosthesis. Though some inflammatory response was seen after one month, after three months the CORP was surrounded by a layer of fibrous connective tissue without any foreigh body giant cell, histiocyte or inflammatory cell infiltration. Our satisfactory clinical results in humans without placing a cartilage between the CORP and the fascia graft may be due to the excellent softtissue compatibility of CORP, as demonstrated in this study.

Download Full-text

Hydroxylapatite Ossicular Replacement Prostheses: A Four-Year Experience

Otolaryngology ◽

10.1177/019459989210600312 ◽

1992 ◽

Vol 106 (3) ◽

pp. 261-269 ◽

Cited By ~ 32

Author(s):

Robert A. Goldenberg

Keyword(s):

Surgical Technique ◽

Middle Ear ◽

Control Group ◽

Hearing Results ◽

Extrusion Rate ◽

Hearing Result ◽

Ossicular Replacement ◽

Middle Ear Implants

Between 1987 and 1991, I have used 215 hydroxylapatite middle ear implants, in various styles, for hearing reconstruction. The first such implants were composed entirely of hydroxylapatite. Because of intraoperative difficulties in shaping and trimming these prostheses, hybrid prostheses using Plasti-Pore were developed. For each of four implant designs (incus, incus-stapes, PORP, and TORP), the head is constructed from hydroxylapatite and the shaft from Plasti-Pore. Extrusion rate for the hybrid prostheses is low (4.3%). Hearing results from 47 patients with the hybrid hydroxylapatite prostheses, 140 patients with total hydroxylapatite prostheses, and 75 control group patients with homograft bone or Plasti-Pore prostheses were compared. A “successful” hearing result was achieved in 51.1%, 51.4%, and 60.0% of the three groups, respectively. Surgical technique for use of the new hybrid hydroxylapatite prostheses is described.

Download Full-text

Development of a robotic endoscope holder for nasal surgery

2013 IEEE International Conference on Information and Automation (ICIA) ◽

10.1109/icinfa.2013.6720476 ◽

2013 ◽

Cited By ~ 5

Author(s):

Peng Li ◽

Hiu Man Yip ◽

David Navarro-Alarcon ◽

Yunhui Liu ◽

Chi Fai Michael Tong ◽

...

Keyword(s):

Nasal Surgery ◽

Endoscope Holder ◽

Robotic Endoscope

Download Full-text

Long-Term Experience with Biocompatible Ossicular Implants

Otolaryngology ◽

10.1177/019459988609400614 ◽

1986 ◽

Vol 94 (6) ◽

pp. 611-616 ◽

Cited By ~ 8

Author(s):

John R. Emmett ◽

John J. Shea ◽

William H. Moretz

Keyword(s):

Chronic Otitis Media ◽

Hearing Results ◽

Common Causes ◽

Ossicular Replacement ◽

Stapes Prosthesis ◽

Short And Long Term ◽

Conductive Hearing ◽

Long Term Experience

The senior author's 8-year personal experience with biocompatible ossicular implants is reviewed. Four hundred sixty-one consecutive operations, in which high-density polyethylene sponge ossicular replacement prostheses were used, are grouped according to the Bellucci classification of chronic otitis media. The prostheses used were the drum-to-footplate prosthesis (TORP, total) and the drum-to-stapes prosthesis (PORP, partial)*. Each group's short- and long-term hearing results are compared. Prosthesis extrusion and persistent or recurrent conductive hearing loss are the most common causes of operation failure. Failures within each group are analyzed, and techniques to prevent these complications are outlined.

Download Full-text

Autologous total ossicular replacement prosthesis

The Journal of Laryngology & Otology ◽

10.1017/s0022215114002679 ◽

2014 ◽

Vol 128 (12) ◽

pp. 1050-1055 ◽

Cited By ~ 5

Author(s):

M Malhotra ◽

S Varshney ◽

R Malhotra

Keyword(s):

Pure Tone ◽

Chronic Otitis Media ◽

Canal Wall ◽

Hearing Improvement ◽

Hearing Results ◽

Replacement Technique ◽

Ossicular Replacement ◽

Canal Wall Down ◽

Replacement Prosthesis ◽

Air Conduction

AbstractObjective:To develop an autologous total ossicular replacement prosthesis with sustainable hearing results.Methods:The ears of 40 patients, who had chronic otitis media with absent suprastructure of the stapes and long process of the incus, were repaired using the autologous total ossicular replacement technique. Post-operative results were evaluated after 6 and 12 months on the basis of average pure tone air conduction and average air–bone gap measured at 0.5, 1, 2 and 3 kHz.Results:Successful rehabilitation of pure tone average to 30 dB or less was achieved in 75 per cent of patients, and air–bone gap to 20 dB or less was attained in 82.5 per cent of patients. Overall mean improvement in air–bone gap was 23.9 ± 8.5 dB (p < 0.001). Mean improvements in air–bone gap were significantly greater (p < 0.05) in the tympanoplasty only group (27.3 ± 6.6 dB) and the intact canal wall tympanoplasty group (25.9 ± 6.3 dB) than in the canal wall down tympanoplasty group (16.3 ± 8.9 dB).Conclusion:This paper describes an autologous total ossicular replacement prosthesis that is biocompatible, stable, magnetic resonance imaging compatible and, above all, results in sustainable hearing improvement.

Download Full-text

Total and Partial Ossicular Replacement Prostheses in Children

Otolaryngology ◽

10.1177/019459989411000307 ◽

1994 ◽

Vol 110 (3) ◽

pp. 302-303 ◽

Cited By ~ 7

Author(s):

Alexander Kessler ◽

William P. Potsic ◽

Roger R. Marsh

Keyword(s):

Success Rate ◽

Middle Ear ◽

Binaural Hearing ◽

Surgical Success ◽

Ossicular Reconstruction ◽

Speech Reception ◽

Ossicular Replacement ◽

Middle Ear Disease ◽

Speech Reception Thresholds ◽

Early Reconstruction

Although ossicular reconstruction in children may carry a risk of failure because of recurrent middle ear disease, the procedure offers the potential for restoring binaural hearing during the school years when it is so critical. Of a series of 45 reconstructions with total and partial ossicular replacement prostheses, 6 were extruded for a surgical success rate of 87%. Of the successful cases, 74% had air-bone gaps of 30 dB or better, and 74% had speech reception thresholds of 30 dB or better on initial postoperative audiogram. Outcomes for these children were comparable with those reported for adults, supporting the value of early reconstruction.

Download Full-text