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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
MeSH Review

Bone Conduction

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Disease relevance of Bone Conduction

  • But the difficulties in finding the real bone conduction threshold levels, which ABG shapes depend on, lead us first to explain the mechanism of the various dips and notches altering bone conduction curves; and second, to try to find a safe and sure method for precise evaluation of the real cochlear reserve in otospongiosis/otosclerosis [1].
  • These hearing losses were mainly sensorineural, as shown by a similar reduction in both air and bone conduction, although mixed-type hearing loss existed in some patients [2].
  • While both devices can supply effective amplification for select patients suffering from conductive hearing loss, neither provides gain superior to preoperative bone-conduction thresholds to address the needs of select patients with a substantial sensorineural component [3].
  • Chronic suppurative otitis media (COM) is reported to cause elevation of bone-conduction thresholds either by damage to cochlear sensorineural structures or by alteration in the mechanics of sound transmission in the ear [4].
  • Although somewhat approximate, the effective loudness level is considered to be an unbiased loudness estimate of tinnitus under the condition that only the SL of tinnitus and the bone-conduction HTL are available, and makes it easier to appreciate the actual loudness compared with a complex loudness unit such as on the sone scale [5].

High impact information on Bone Conduction

  • The bone conduction chamber consists of a cylindrical titanium chamber for implantation in the rat tibia [6].
  • RESULTS: Bone conduction results: 500 Hz A/D rate: Large-amplitude (43 to 1558 nV) artifactual ASSRs were seen at 40 and 50 dB HL for the 500 Hz carrier frequency [7].
  • Air conduction (AC) versus bone conduction (BC) loudness balance testing was conducted at frequencies of 0.25, 0.5, 0.75, 1, 2, and 4 kHz for two groups: 23 normal hearing subjects and eight subjects with a mild to moderate pure sensorineural hearing loss [8].
  • OBJECTIVE: This study aimed to challenge the classical hypothesis that a negative preoperative 512-Hz Rinne tuning fork test (bone conduction greater than air conduction) is a necessary condition to allow consistent objective and subjective hearing improvement with surgery for otosclerosis [9].
  • RESULTS: In most subjects who had previously used a bone-conduction device, the new BAHA and TBS devices led to improved or comparable results on speech recognition tests and the questionnaire [10].

Biological context of Bone Conduction


Anatomical context of Bone Conduction

  • The incidence (10%) of severe sensorineural loss in regard to age, preoperative bone conduction, and oval window pathology was examined [13].
  • The fact that a titanium screw can be implanted into the mastoid portion of the human skull, at the same time establishing a permanent, reaction-free skin penetration, has made it possible to attach a new bone conduction hearing aid directly to the skull [14].
  • The use of acoustical test fixtures for the measurement of hearing protector attenuation. Part II: Modeling the external ear, simulating bone conduction, and comparing test fixture and real-ear data [15].
  • Twenty-nine consecutive patients with clinical otosclerosis were tested 2 weeks before and 7 months after stapes surgery with conventional air-conduction (AC) and bone-conduction (BC) audiometry and electric bone-conduction (EBC) audiometry using an Audimax 500 audiometer [16].
  • Comparison of the mean bone conduction threshold, as measured in life, in temporal bones with otosclerosis compared with the air conduction threshold in aged-matched controls, demonstrated that only cochleae with two or more sites of endosteal involvement had a mild but statistically significant (P = .05) decrease in hearing [17].

Associations of Bone Conduction with chemical compounds


Gene context of Bone Conduction

  • A new device, the bone conduction chamber, was developed for the application of bFGF to bone conductive materials [23].
  • RESULTS: The frequency of SNHL in the patients with RA was higher than in normal controls (36.1% versus 13.9%), and bone conduction at 2,000 Hz differed significantly between the patients with RA and the controls (p < 0.01) [24].
  • The association of otosclerosis with reduced bone conduction is well known but no experimental or valid clinical relationship has been established to confirm this relationship [25].
  • Application of an implantable bone conduction hearing device to patients with unilateral sensorineural hearing loss [26].
  • Use of the bone conduction ABR Wave I response in determination of cochlear reserve [27].

Analytical, diagnostic and therapeutic context of Bone Conduction


  1. ABG, dips and notches evaluation of cochlear reserve in otosclerosis. Causse, J.R., Causse, J.B. The American journal of otology. (1981) [Pubmed]
  2. Radiation-induced hearing impairment in patients treated for malignant parotid tumor. Chen, W.C., Liao, C.T., Tsai, H.C., Yeh, J.Y., Wang, C.C., Tang, S.G., Hong, J.H. The Annals of otology, rhinology, and laryngology. (1999) [Pubmed]
  3. Bone conduction implants for amplification: comparison of results. Hough, D.A., Matthews, P., Hough, J.V. Ear, nose, & throat journal. (1997) [Pubmed]
  4. Cochlear pathology in chronic suppurative otitis media. Walby, A.P., Barrera, A., Schuknecht, H.F. The Annals of otology, rhinology & laryngology. Supplement. (1983) [Pubmed]
  5. Estimation of the loudness of tinnitus from matching tests. Matsuhira, T., Yamashita, K., Yasuda, M. British journal of audiology. (1992) [Pubmed]
  6. Cartilage induction by controlled mechanical stimulation in vivo. Tägil, M., Aspenberg, P. J. Orthop. Res. (1999) [Pubmed]
  7. Artifactual responses when recording auditory steady-state responses. Small, S.A., Stapells, D.R. Ear and hearing. (2004) [Pubmed]
  8. Air versus bone conduction: an equal loudness investigation. Stenfelt, S., Håkansson, B. Hear. Res. (2002) [Pubmed]
  9. A reevaluation of the 512-Hz Rinne tuning fork test as a patient selection criterion for laser stapedotomy. Gordon, M.A., Silverstein, H., Willcox, T.O., Rosenberg, S.I. The American journal of otology. (1998) [Pubmed]
  10. Short- and long-term results with implantable transcutaneous and percutaneous bone-conduction devices. Snik, A.F., Dreschler, W.A., Tange, R.A., Cremers, C.W. Arch. Otolaryngol. Head Neck Surg. (1998) [Pubmed]
  11. Mixed conductive and sensorineural hearing loss in LP/J mice. Steel, K.P., Moorjani, P., Bock, G.R. Hear. Res. (1987) [Pubmed]
  12. Densitometry of the cochlear capsule and correlation between bone density loss and bone conduction hearing loss in otosclerosis. Huizing, E.H., de Groot, J.A. Acta Otolaryngol. (1987) [Pubmed]
  13. Some observations concerning 200 stapedectomies: fifteen years postoperatively. Del Bo, M., Zaghis, A., Ambrosetti, U. Laryngoscope (1987) [Pubmed]
  14. The mechanical point impedance of the human head, with and without skin penetration. Håkansson, B., Carlsson, P., Tjellström, A. The Journal of the Acoustical Society of America. (1986) [Pubmed]
  15. The use of acoustical test fixtures for the measurement of hearing protector attenuation. Part II: Modeling the external ear, simulating bone conduction, and comparing test fixture and real-ear data. Schroeter, J., Poesselt, C. The Journal of the Acoustical Society of America. (1986) [Pubmed]
  16. Carhart notch and electric bone-conduction audiometry. Laitakari, K., Löppönen, H. Scandinavian audiology. (1994) [Pubmed]
  17. Correlation of otosclerotic foci and degenerative changes in the organ of Corti and spiral ganglion. Kwok, O.T., Nadol, J.B. American journal of otolaryngology. (1989) [Pubmed]
  18. Early bone formation around calcium-ion-implanted titanium inserted into rat tibia. Hanawa, T., Kamiura, Y., Yamamoto, S., Kohgo, T., Amemiya, A., Ukai, H., Murakami, K., Asaoka, K. J. Biomed. Mater. Res. (1997) [Pubmed]
  19. Effect of drinking water fluoridation on hearing of patients with otosclerosis in a low fluoride area: a follow-up study. Vartiainen, E., Karjalainen, S., Nuutinen, J., Suntioinen, S., Pellinen, P. The American journal of otology. (1994) [Pubmed]
  20. Perioperative glucocorticoid treatment does not influence early post-laser stapedotomy hearing thresholds. Riechelmann, H., Tholen, M., Keck, T., Rettinger, G. The American journal of otology. (2000) [Pubmed]
  21. Basic fibroblast growth factor promotes bone ingrowth in porous hydroxyapatite. Wang, J.S., Aspenberg, P. Clin. Orthop. Relat. Res. (1996) [Pubmed]
  22. Granule size and composition of bioactive glasses affect osteoconduction in rabbit. Lindfors, N.C., Aho, A.J. Journal of materials science. Materials in medicine. (2003) [Pubmed]
  23. Basic fibroblast growth factor for stimulation of bone formation in osteoinductive or conductive implants. Wang, J.S. Acta orthopaedica Scandinavica. Supplementum. (1996) [Pubmed]
  24. Ear involvement in patients with rheumatoid arthritis. Takatsu, M., Higaki, M., Kinoshita, H., Mizushima, Y., Koizuka, I. Otol. Neurotol. (2005) [Pubmed]
  25. Progressive sensorineural hearing loss and cochlear otosclerosis: a prospective study. Freeman, J. Laryngoscope (1979) [Pubmed]
  26. Application of an implantable bone conduction hearing device to patients with unilateral sensorineural hearing loss. Weber, B.A., Roush, J., McElveen, J.T. Laryngoscope (1992) [Pubmed]
  27. Use of the bone conduction ABR Wave I response in determination of cochlear reserve. Tucci, D.L., Ruth, R.A., Lambert, P.R. The American journal of otology. (1990) [Pubmed]
  28. Air and bone conduction change after stapedotomy and partial stapedectomy for otosclerosis. Quaranta, N., Besozzi, G., Fallacara, R.A., Quaranta, A. Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery. (2005) [Pubmed]
  29. Ototoxicity of aminoglycoside drugs in tuberculosis treatment. Voogt, G.R., Schoeman, H.S. The South African journal of communication disorders. Die Suid-Afrikaanse tydskrif vir Kommunikasieafwykings. (1996) [Pubmed]
  30. Auditory brainstem responses after radiotherapy for nasopharyngeal carcinoma. Leighton, S.E., Kay, R., Leung, S.F., Woo, J.K., Van Hasselt, C.A. Clinical otolaryngology and allied sciences. (1997) [Pubmed]
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