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        <Description>METHODIST HOSPITAL POST-GRADUATE TRAINING PROJECTS.DURING THE 2011, IORE SUPPORTED ACADEMIC RESEARCH PROJECTS COMPLETED BY METHODIST FELLOWS IN JOINT REPLACEMENT AND SPORTS MEDICINE. THESE PROJECTS RANGED FROM CADAVERIC STUDIES SIMULATING MUSCULO-SKELETAL FUNCTION TO QUESTIONNAIRE/OUTCOME STUDIES QUANTIFYING THE RESULTS OF SURGICAL PROCEDURES. TYPICAL RESEARCH STUDIES INCLUDED: 1. THE EFFECT OF IMPLANT MALROTATION DURING TOTAL KNEE ARTHROPLASTY ON RETINACULAR STRAINS AND JOINT BALANCING. USING ADVANCED TECHNOLOGY DEVELOPED AT IORE, WE ARE ABLE TO MEASURE THE STRAIN DEVELOPED OVER THE SURFACE OF SOFT TISSUES DURING ACTIVITIES SIMULATED IN CADAVERS. THESE TECHNIQUES HAVE BEEN APPLIED TO SYSTEMATICALLY STUDY WHETHER THE DISCOMFORT REPORTED BY PATIENTS WITH MALROTATION OF THEIR TOTAL KNEE PROSTHESES CAN BE EXPLAINED BY ABNORMAL ELEVATION OF TENSILE STRAINS WITHIN RETINACULAR TISSUES DURING NORMAL KNEE FUNCTION. THE EFFECT OF MALROTATION ON THE OPENING OF THE MEDIAL AND LATERAL JOINT SPACE HAS ALSO BEEN INVESTIGATED DURING THE SAME EXPERIMENTS. CONFERENCE ABSTRACTS AND A SCIENTIFIC ARTICLE ARE CURRENTLY IN PREPARATION. 2. WE SUPPORTED AN INVESTIGATION OF FACTORS INVOLVED IN THE POSITIONING OF TIBIAL TRAYS ON THE PROXIMAL SURFACE OF THE TIBIA DURING TOTAL KNEE REPLACEMENT (TKA). ONE OF THE MOST COMMON SOURCES OF RECURRENT PAIN AND SWELLING OF THE KNEE AFTER TKA IS MAL-ORIENTATION OF THE PROSTHETIC COMPONENTS ON THE TIBIA AND FEMUR. IN THE CASE OF THE TIBIAL TRAY THIS TYPICALLY ARISES BECAUSE THE SURGEON ATTEMPTS TO MATCH THE SHAPE OF THE IMPLANT AND THE BONY SURFACE IN ORDER TO PREVENT SUBSIDENCE OF THE PROSTHESIS WITH TIME. IN THIS EXPERIMENT, A PANEL OF SURGEONS HAS REACHED A CONSENSUS CONCERNING THE IDEAL POSITIONING OF DIFFERENT IMPLANT DESIGNS ON A RANGE OF BONY SPECIMENS. THE CONSEQUENCES IN TERMS OF BONY COVERAGE, AND DEVIATION FROM THE NORMAL DIRECTION OF MOTION OF THE KNEE WERE THEN CALCULATED AND EVALUATED AS A FUNCTION OF IMPLANT DESIGN. THE RESULTS OF THIS STUDY WILL BE COMMUNICATED TO JOINT REPLACEMENT SURGEONS THROUGH CONFERENCE PRESENTATIONS AND PUBLICATIONS IN SCIENTIFIC JOURNALS. 3. WE WORKED WITH A POST-GRADUATE FELLOW IN SPORTS MEDICINE TO INVESTIGATE THE MOTION OF REPAIRED TEARS WITHIN THE KNEE MENISCUS UNDER SIMULATED WEIGHT-BEARING CONDITIONS IN CADAVERS. AN EXPERIMENTAL METHOD WAS DEVELOPED IN WHICH MINIATURE SPHERICAL METAL BEADS WERE IMPLANTED IN THE MENISCUS AND TRACKED USING BIPLANAR RADIOSTEREOMETRY. THIS ALLOWED MOTION WITHIN THE SUBSTANCE OF THE MENISCAL TISSUE TO BE MEASURED IN THE INTACT CONDITION, AND AFTER REPAIR OF AN EXPERIMENTALLY-GENERATED TEAR. THE RESULTS OF THIS STUDY WILL BE COMMUNICATED TO JOINT REPLACEMENT SURGEONS THROUGH CONFERENCE PRESENTATIONS AND PUBLICATIONS IN SCIENTIFIC JOURNALS.</Description>
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        <Description>ALTERNATIVE METHODS OF STABILIZING SACRAL FRACTURES.THIS STUDY WAS PERFORMED IN COLLABORATION WITH THE FACULTY AND SURGICAL TRAINEES OF THE DEPARTMENT OF ORTHOPEDIC SURGERY AT THE UNIVERSITY OF TEXAS HEALTH SCIENCES CENTER IN HOUSTON. USING A CADAVER MODEL, WE COMPARED THE EFFECTIVENESS OF 4 ALTERNATIVE METHODS OF INTERNAL FIXATION FOR STABILIZING VERTICAL FRACTURES OF THE SACRUM, AS SEEN IN SEVERE PELVIC TRAUMA. THESE STUDIES WERE PERFORMED THROUGH EXPERIMENTAL SIMULATION OF THE INJURY AND THE DISRUPTIVE FORCES IMPOSED BY PARTIAL WEIGHT-BEARING DURING THE PERIOD OF POST-OPERATIVE RECOVERY. MEASUREMENTS OF DYNAMIC SEPARATION OF THE BONY FRAGMENTS DURING THESE SIMULATIONS ALLOWED QUANTITATIVE COMPARISON OF THE FIXATION METHODS. THE RESULTS OF THIS STUDY WILL BE COMMUNICATED TO JOINT REPLACEMENT SURGEONS THROUGH CONFERENCE PRESENTATIONS AND PUBLICATIONS IN SCIENTIFIC JOURNALS.</Description>
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        <CurrentTaxYear>600000</CurrentTaxYear>
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        <CurrentTaxYearMinus2Years>1190936</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>595087</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>307577</CurrentTaxYear>
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        <CurrentTaxYearMinus3Years>1161187</CurrentTaxYearMinus3Years>
        <CurrentTaxYearMinus2Years>1190936</CurrentTaxYearMinus2Years>
        <CurrentTaxYearMinus1Year>745087</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>907577</CurrentTaxYear>
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        <CurrentTaxYearMinus1Year>86768</CurrentTaxYearMinus1Year>
        <CurrentTaxYear>109603</CurrentTaxYear>
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        <ContributorAddressUS>
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          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
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        <AggregateContributions>RESTRICTED</AggregateContributions>
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        <Depreciation>27789</Depreciation>
        <BookValue>62211</BookValue>
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      <Equipment>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 11</ReturnReference>
        <Explanation>A COPY OF THE 990 IS PROVIDED TO THE ORGANIZATION'S GOVERNING BODY BEFORE IT IS FILED.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 12C</ReturnReference>
        <Explanation>THE BOARD REGULARLY AND CONSISTENTLY MONITORS AND ENFORCES THE COMPLIANCE WITH THE CONFLICT OF INTEREST POLICY BY OVERSEEING THE OPERATIONS OF THE ORGANIZATION.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 15</ReturnReference>
        <Explanation>THE PROCESS FOR DETERMINING COMPENSATION INCLUDES A REVIEW AND APPROVAL OF THE BOARD, COMPARABILITY DATA, AND CONTEMPORANEOUS SUBSTANTIATION.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 19</ReturnReference>
        <Explanation>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.</Explanation>
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          <State>TX</State>
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</Return>