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type=\u0022text\/css\u0022 rel=\u0022stylesheet\u0022 href=\u0022\/\/d282kpwvnogo5m.cloudfront.net\/sites\/default\/files\/cdn\/css\/http\/css_Xg7z6oCTVgud_Q0huYz9x9iiD5H_2YPSJ5z2ZViSWdY.css\u0022 media=\u0022all\u0022 \/\u003E\n\u003Clink rel=\u0027stylesheet\u0027 type=\u0027text\/css\u0027 href=\u0027\/sites\/all\/modules\/contrib\/panels\/plugins\/layouts\/onecol\/onecol.css\u0027 \/\u003E\u003C\/head\u003E\u003Cbody\u003E\u003Cdiv class=\u0022panels-ajax-tab-panel panels-ajax-tab-panel-sageoa-tab-art\u0022\u003E\u003Cdiv class=\u0022panel-display panel-1col clearfix\u0022 \u003E\n  \u003Cdiv class=\u0022panel-panel panel-col\u0022\u003E\n    \u003Cdiv\u003E\u003Cdiv class=\u0022panel-pane pane-highwire-markup\u0022 \u003E\n  \n      \n  \n  \u003Cdiv class=\u0022pane-content\u0022\u003E\n    \u003Cdiv class=\u0022highwire-markup\u0022\u003E\u003Cdiv xmlns=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022 id=\u0022content-block-markup\u0022 xmlns:xhtml=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022\u003E\u003Cdiv class=\u0022article fulltext-view \u0022\u003E\u003Cspan class=\u0022highwire-journal-article-marker-start\u0022\u003E\u003C\/span\u003E\u003Cdiv class=\u0022section abstract\u0022 id=\u0022abstract-1\u0022\u003E\u003Ch2\u003ESummary\u003C\/h2\u003E\n            \u003Cp id=\u0022p-1\u0022\u003EGlenoid bone deficiency has been implicated as a significant risk factor for failure after arthroscopic stabilization, with data suggesting that 20% to 25% glenoid loss is a \u201ccritical level\u201d at which this risk increases [Boileau P et al. \u003Cem\u003EJ Bone Joint Surg Am\u003C\/em\u003E 2006; Boileau P et al. \u003Cem\u003EClin Orthop Relat Res\u003C\/em\u003E 2014]. However, there is a paucity of data available to indicate whether a lesser degree of bone loss results in better arthroscopic outcomes.\u003C\/p\u003E\n         \u003C\/div\u003E\u003Cul class=\u0022kwd-group\u0022\u003E\u003Cli class=\u0022kwd\u0022\u003EBone Density \u0026amp; Structure Disorders Clinical Trials\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EShoulder \u0026amp; Elbow Conditions\u003C\/li\u003E\u003C\/ul\u003E\u003Cul class=\u0022kwd-group clinical-trial\u0022\u003E\u003Cli class=\u0022kwd\u0022\u003EOrthopaedics\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EBone Density \u0026amp; Structure Disorders\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EOrthopaedics Clinical Trials\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EShoulder \u0026amp; Elbow Conditions\u003C\/li\u003E\u003C\/ul\u003E\u003Cp id=\u0022p-2\u0022\u003EGlenoid bone deficiency has been implicated as a significant risk factor for failure after arthroscopic stabilization, with data suggesting that 20% to 25% glenoid loss is a \u201ccritical level\u201d at which this risk increases [Boileau P et al. \u003Cem\u003EJ Bone Joint Surg Am\u003C\/em\u003E 2006; Boileau P et al. \u003Cem\u003EClin Orthop Relat Res\u003C\/em\u003E 2014]. However, there is a paucity of data available to indicate whether a lesser degree of bone loss results in better arthroscopic outcomes.\u003C\/p\u003E\u003Cp id=\u0022p-3\u0022\u003EJohn Tokish, MD, Tripler Army Medical Center, Hickam AFB, Hawaii, described his group\u0027s study to examine whether glenoid bone loss below \u201ccritical\u201d levels would affect redislocation and functional outcomes following arthroscopic repair. Data were obtained from an ongoing quality improvement program at Tripler Army Medical Center and included 72 military personnel who underwent isolated anterior Bankart repairs from June 2009 to September 2011 without having undergone concomitant procedures or having extended labral pathology. The study included 68 men and 4 women with an average age of 26.3 years.\u003C\/p\u003E\u003Cp id=\u0022p-4\u0022\u003EObjective data used for evaluation included demographics, operative information with the number of anchors used, and advanced imaging estimates of bone loss. Subjective data included scores on the Western Ontario Shoulder Index (WOSI) and the Single Assessment Numeric Evaluation (SANE), as well as patient-reported dislocations. A minimally clinically important difference on the WOSI was set at 220; a successful WOSI score was considered to be in the range of 320 to 420.\u003C\/p\u003E\u003Cp id=\u0022p-5\u0022\u003EGlenoid bone loss was established with the \u201cperfect circle technique.\u201d A perfect circle was drawn on a sagittal cut of the en fos glenoid. A line was drawn across the glenoid at the level of the bony defect. A separate line was drawn from the anterior lip of the glenoid to the anterior edge of the perfect circle. The lines were divided and converted to a percentage of the glenoid that was absent. Two such determinations were made by 4 independent viewers at a minimum of 2-week intervals.\u003C\/p\u003E\u003Cp id=\u0022p-6\u0022\u003ECases were divided into quartiles stratified by bone loss; recurrence rates and outcomes were then compared by quartiles. The researchers also analyzed those cases where bone loss resulted in increased recurrence without a significant increase in WOSI scores. If redislocation was excluded, the analysis was repeated to determine if stable patients had worse outcomes with increasing bone loss independent of recurrence.\u003C\/p\u003E\u003Cp id=\u0022p-7\u0022\u003EOverall, average bone loss was 13.4%. Bone loss over the 4 quartiles increased from 0% to 35%, and the recurrence rate increased more than 2-fold from quartile 1 to quartile 4. WOSI scores worsened with each quartile (\u003Ca id=\u0022xref-table-wrap-1-1\u0022 class=\u0022xref-table\u0022 href=\u0022#T1\u0022\u003ETable 1\u003C\/a\u003E). When patients with recurrence (n = 7) were compared to those without (n = 64), bone loss and WOSI scores were twice as high. When patients with recurring dislocations were excluded from the analysis, bone loss still predicted outcomes. The WOSI score was significantly higher (p = .03) in patients with bone loss \u0026gt; 13.5%\u2014well below the \u201ccritical level\u201d cutoff of 20% to 25% currently used to predict failure following arthroscopy (\u003Ca id=\u0022xref-table-wrap-2-1\u0022 class=\u0022xref-table\u0022 href=\u0022#T2\u0022\u003ETable 2\u003C\/a\u003E).\u003C\/p\u003E\u003Cdiv id=\u0022T1\u0022 class=\u0022table pos-float\u0022\u003E\u003Cdiv class=\u0022table-inline\u0022\u003E\u003Cdiv class=\u0022callout\u0022\u003E\u003Cspan\u003EView this table:\u003C\/span\u003E\u003Cul class=\u0022callout-links\u0022\u003E\u003Cli class=\u00220 first\u0022\u003E\u003Ca href=\u0022\/\u0022 class=\u0022table-expand-inline\u0022 data-table-url=\u0022\/highwire\/markup\/14870\/expansion?postprocessors=highwire_figures%2Chighwire_math%2Chighwire_inline_linked_media%2Chighwire_embed\u0026amp;table-expand-inline=1\u0022 html=\u00221\u0022 fragment=\u0022#\u0022 external=\u00221\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView inline\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00221\u0022\u003E\u003Ca href=\u0022\/highwire\/markup\/14870\/expansion?width=1000\u0026amp;height=500\u0026amp;iframe=true\u0026amp;postprocessors=highwire_figures%2Chighwire_math%2Chighwire_inline_linked_media\u0022 class=\u0022colorbox colorbox-load table-expand-popup\u0022 rel=\u0022gallery-fragment-tables\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView popup\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00222 last\u0022\u003E\u003Ca href=\u0022\/highwire\/powerpoint\/14870\u0022 class=\u0022highwire-figure-link highwire-figure-link-ppt\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload powerpoint\u003C\/a\u003E\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv class=\u0022table-caption\u0022\u003E\u003Cspan class=\u0022table-label\u0022\u003ETable 1.\u003C\/span\u003E \n            \u003Cp id=\u0022p-8\u0022 class=\u0022first-child\u0022\u003EResults by Quartile\u003Csup\u003E*\u003C\/sup\u003E\n            \u003C\/p\u003E\n         \u003Cdiv class=\u0022sb-div caption-clear\u0022\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv id=\u0022T2\u0022 class=\u0022table pos-float\u0022\u003E\u003Cdiv class=\u0022table-inline\u0022\u003E\u003Cdiv class=\u0022callout\u0022\u003E\u003Cspan\u003EView this table:\u003C\/span\u003E\u003Cul class=\u0022callout-links\u0022\u003E\u003Cli class=\u00220 first\u0022\u003E\u003Ca href=\u0022\/\u0022 class=\u0022table-expand-inline\u0022 data-table-url=\u0022\/highwire\/markup\/14769\/expansion?postprocessors=highwire_figures%2Chighwire_math%2Chighwire_inline_linked_media%2Chighwire_embed\u0026amp;table-expand-inline=1\u0022 html=\u00221\u0022 fragment=\u0022#\u0022 external=\u00221\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView inline\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00221\u0022\u003E\u003Ca href=\u0022\/highwire\/markup\/14769\/expansion?width=1000\u0026amp;height=500\u0026amp;iframe=true\u0026amp;postprocessors=highwire_figures%2Chighwire_math%2Chighwire_inline_linked_media\u0022 class=\u0022colorbox colorbox-load table-expand-popup\u0022 rel=\u0022gallery-fragment-tables\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView popup\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00222 last\u0022\u003E\u003Ca href=\u0022\/highwire\/powerpoint\/14769\u0022 class=\u0022highwire-figure-link highwire-figure-link-ppt\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload powerpoint\u003C\/a\u003E\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv class=\u0022table-caption\u0022\u003E\u003Cspan class=\u0022table-label\u0022\u003ETable 2.\u003C\/span\u003E \n            \u003Cp id=\u0022p-14\u0022 class=\u0022first-child\u0022\u003EResults by Quartile (All Recurrent Dislocations Excluded)\u003Csup\u003E*\u003C\/sup\u003E\n            \u003C\/p\u003E\n         \u003Cdiv class=\u0022sb-div caption-clear\u0022\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cp id=\u0022p-18\u0022\u003EDr. Tokish addressed several study limitations, including its retrospective design and the lack of preinjury scores. Limitations aside, however, he encouraged clinicians to reconsider the cutoff for \u201ccritical bone loss\u201d because of its impact on recurrence rates and functional outcomes.\u003C\/p\u003E\u003Cul class=\u0022copyright-statement\u0022\u003E\u003Cli class=\u0022fn\u0022 id=\u0022copyright-statement-1\u0022\u003E\u00a9 2014 MD Conference Express\u00ae\u003C\/li\u003E\u003C\/ul\u003E\u003Cspan class=\u0022highwire-journal-article-marker-end\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Cspan id=\u0022related-urls\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Ca href=\u0022http:\/\/mdc.sagepub.com\/content\/14\/23\/10.2.abstract\u0022 class=\u0022hw-link hw-link-article-abstract\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView Summary\u003C\/a\u003E\u003C\/div\u003E  \u003C\/div\u003E\n\n  \n  \u003C\/div\u003E\n\u003C\/div\u003E\n  \u003C\/div\u003E\n\u003C\/div\u003E\n\u003C\/div\u003E\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_openurl.js?nzowod\u0022\u003E\u003C\/script\u003E\n\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_tables.js?nzowod\u0022\u003E\u003C\/script\u003E\n\u003C\/body\u003E\u003C\/html\u003E"}