Auditory and Visual Health after Ten Years of Exposure to Metal-on-Metal Hip Prostheses: A Cross-Sectional Study Follow Up
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{"title"=>"Auditory and visual health after ten years of exposure to metal-on-metal hip prostheses: A cross-sectional study follow up", "type"=>"journal", "authors"=>[{"first_name"=>"Jennifer R.", "last_name"=>"Prentice", "scopus_author_id"=>"56007096600"}, {"first_name"=>"Christopher S.", "last_name"=>"Blackwell", "scopus_author_id"=>"56108381500"}, {"first_name"=>"Naz", "last_name"=>"Raoof", "scopus_author_id"=>"33368230100"}, {"first_name"=>"Paul", "last_name"=>"Bacon", "scopus_author_id"=>"56108520700"}, {"first_name"=>"Jaydip", "last_name"=>"Ray", "scopus_author_id"=>"55330874300"}, {"first_name"=>"Simon J.", "last_name"=>"Hickman", "scopus_author_id"=>"7005829709"}, {"first_name"=>"J. Mark", "last_name"=>"Wilkinson", "scopus_author_id"=>"35585820200"}], "year"=>2014, "source"=>"PLoS ONE", "identifiers"=>{"pmid"=>"24621561", "doi"=>"10.1371/journal.pone.0090838", "pui"=>"372799670", "issn"=>"19326203", "sgr"=>"84897984668", "scopus"=>"2-s2.0-84897984668"}, "id"=>"e52fa46c-25d1-30e5-a3cb-a8f509a6f4cb", "abstract"=>"Case reports of patients with mal-functioning metal-on-metal hip replacement (MoMHR) prostheses suggest an association of elevated circulating metal levels with visual and auditory dysfunction. However, it is unknown if this is a cumulative exposure effect and the impact of prolonged low level exposure, relevant to the majority of patients with a well-functioning prosthesis, has not been studied. Twenty four male patients with a well-functioning MoMHR and an age and time since surgery matched group of 24 male patients with conventional total hip arthroplasty (THA) underwent clinical and electrophysiological assessment of their visual and auditory health at a mean of ten years after surgery. Median circulating cobalt and chromium concentrations were higher in patients after MoMHR versus those with THA (P<0.0001), but were within the Medicines and Healthcare Products Regulatory Agency (UK) investigation threshold. Subjective auditory tests including pure tone audiometric and speech discrimination findings were similar between groups (P>0.05). Objective assessments, including amplitude and signal-to-noise ratio of transient evoked and distortion product oto-acoustic emissions (TEOAE and DPOAE, respectively), were similar for all the frequencies tested (P>0.05). Auditory brainstem responses (ABR) and cortical evoked response audiometry (ACR) were also similar between groups (P>0.05). Ophthalmological evaluations, including self-reported visual function by visual functioning questionnaire, as well as binocular low contrast visual acuity and colour vision were similar between groups (P>0.05). Retinal nerve fibre layer thickness and macular volume measured by optical coherence tomography were also similar between groups (P>0.05). In the presence of moderately elevated metal levels associated with well-functioning implants, MoMHR exposure does not associate with clinically demonstrable visual or auditory dysfunction.", "link"=>"http://www.mendeley.com/research/auditory-visual-health-after-ten-years-exposure-metalonmetal-hip-prostheses-crosssectional-study-fol", "reader_count"=>11, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Professor > Associate Professor"=>2, "Researcher"=>1, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>1, "Student > Master"=>2, "Other"=>2, "Student > Bachelor"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Professor > Associate Professor"=>2, "Researcher"=>1, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>1, "Student > Master"=>2, "Other"=>2, "Student > Bachelor"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Nursing and Health Professions"=>2, "Agricultural and Biological Sciences"=>2, "Medicine and Dentistry"=>3, "Pharmacology, Toxicology and Pharmaceutical Science"=>1, "Chemistry"=>1}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>3}, "Chemistry"=>{"Chemistry"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>2}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>2}, "Unspecified"=>{"Unspecified"=>2}, "Pharmacology, Toxicology and Pharmaceutical Science"=>{"Pharmacology, Toxicology and Pharmaceutical Science"=>1}}, "reader_count_by_country"=>{"Egypt"=>1}, "group_count"=>0}

Scopus | Further Information

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/1417043"], "description"=>"<p>Values are median (interquartile range). Analysis is MoMHR versus THA by Mann Whitney test; P>0.05, all comparisons. VFQ = Visual Functioning Questionnaire.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "electrophysiology", "neuroscience", "Sensory systems", "Auditory system", "Visual system", "neurology", "Neuro-ophthalmology", "ophthalmology", "otorhinolaryngology", "Audiology", "surgery", "Orthopedic surgery", "Joint replacement surgery"], "article_id"=>959561, "categories"=>["Biological Sciences", "Medicine"], "users"=>["Jennifer R. Prentice", "Christopher S. Blackwell", "Naz Raoof", "Paul Bacon", "Jaydip Ray", "Simon J. Hickman", "J. Mark Wilkinson"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0090838.t004", "stats"=>{"downloads"=>1, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Visual_function_/959561", "title"=>"Visual function.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-03-12 03:23:13"}
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  • {"files"=>["https://ndownloader.figshare.com/files/1417040"], "description"=>"<p>Data are mean ±SD or median (interquartile range). Analyses are MoMHR versus THA by Student's t-test or Mann Whitney test.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "electrophysiology", "neuroscience", "Sensory systems", "Auditory system", "Visual system", "neurology", "Neuro-ophthalmology", "ophthalmology", "otorhinolaryngology", "Audiology", "surgery", "Orthopedic surgery", "Joint replacement surgery"], "article_id"=>959558, "categories"=>["Biological Sciences", "Medicine"], "users"=>["Jennifer R. Prentice", "Christopher S. Blackwell", "Naz Raoof", "Paul Bacon", "Jaydip Ray", "Simon J. Hickman", "J. Mark Wilkinson"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0090838.t001", "stats"=>{"downloads"=>0, "page_views"=>2, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Patient_characteristics_/959558", "title"=>"Patient characteristics.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2014-03-12 03:23:13"}
  • {"files"=>["https://ndownloader.figshare.com/files/1417037"], "description"=>"<p>Data are mean (95% confidence interval) hearing level threshold (dB). Analyses are MoMHR versus THA groups by Mann-Whitney test at each frequency, P>0.05 all comparisons.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "electrophysiology", "neuroscience", "Sensory systems", "Auditory system", "Visual system", "neurology", "Neuro-ophthalmology", "ophthalmology", "otorhinolaryngology", "Audiology", "surgery", "Orthopedic surgery", "Joint replacement surgery", "audiogram", "thresholds", "momhr", "tha", "patients"], "article_id"=>959555, "categories"=>["Biological Sciences", "Medicine"], "users"=>["Jennifer R. Prentice", "Christopher S. Blackwell", "Naz Raoof", "Paul Bacon", "Jaydip Ray", "Simon J. Hickman", "J. Mark Wilkinson"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0090838.g001", "stats"=>{"downloads"=>2, "page_views"=>17, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Pure_Tone_Audiogram_hearing_thresholds_in_MoMHR_versus_THA_patients_for_top_panel_left_and_bottom_panel_right_ears_/959555", "title"=>"Pure Tone Audiogram hearing thresholds in MoMHR versus THA patients for (top panel) left and (bottom panel) right ears.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-03-12 03:23:13"}
  • {"files"=>["https://ndownloader.figshare.com/files/1417039"], "description"=>"<p>All participants (n = 24) included as either non-pathological eye only or mean of right and left. All analyses are MOMHR versus THA by independent t-test (P>0.05 for both comparisons).</p>", "links"=>[], "tags"=>["Anatomy and physiology", "electrophysiology", "neuroscience", "Sensory systems", "Auditory system", "Visual system", "neurology", "Neuro-ophthalmology", "ophthalmology", "otorhinolaryngology", "Audiology", "surgery", "Orthopedic surgery", "Joint replacement surgery", "whisker", "retinal", "fibre", "differences", "macular"], "article_id"=>959557, "categories"=>["Biological Sciences", "Medicine"], "users"=>["Jennifer R. Prentice", "Christopher S. Blackwell", "Naz Raoof", "Paul Bacon", "Jaydip Ray", "Simon J. Hickman", "J. Mark Wilkinson"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0090838.g003", "stats"=>{"downloads"=>0, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Box_and_whisker_plots_showing_top_panel_difference_in_retinal_nerve_fibre_layer_thickness_and_bottom_panel_differences_in_macular_volume_between_the_patient_groups_/959557", "title"=>"Box and whisker plots showing (top panel) difference in retinal nerve fibre layer thickness, and (bottom panel) differences in macular volume between the patient groups.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-03-12 03:23:13"}
  • {"files"=>["https://ndownloader.figshare.com/files/1417038"], "description"=>"<p>Graphs show mean and standard deviation of the amplitude recorded for each of the frequencies tested. Analysis Students T-test, P>0.05 for all.</p>", "links"=>[], "tags"=>["Anatomy and physiology", "electrophysiology", "neuroscience", "Sensory systems", "Auditory system", "Visual system", "neurology", "Neuro-ophthalmology", "ophthalmology", "otorhinolaryngology", "Audiology", "surgery", "Orthopedic surgery", "Joint replacement surgery", "evoked", "otoacoustic", "emissions", "distortion"], "article_id"=>959556, "categories"=>["Biological Sciences", "Medicine"], "users"=>["Jennifer R. Prentice", "Christopher S. Blackwell", "Naz Raoof", "Paul Bacon", "Jaydip Ray", "Simon J. Hickman", "J. Mark Wilkinson"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0090838.g002", "stats"=>{"downloads"=>1, "page_views"=>20, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Transient_Evoked_Otoacoustic_Emissions_TEOAE_top_panel_Distortion_Product_Otoacoustic_Emissions_DPOAE_bottom_panel_/959556", "title"=>"Transient Evoked Otoacoustic Emissions (TEOAE, top panel), Distortion Product Otoacoustic Emissions (DPOAE, bottom panel).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2014-03-12 03:23:13"}

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Relative Metric

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