Mechanical Failure of Cancellous Bone/PMMA Interface
{'Code': '07020000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CBET', 'LongName': 'Div Of Chem, Bioeng, Env, & Transp Sys'}}
{'SignBlockName': 'name not available', 'PO_EMAI': None, 'PO_PHON': None}
Orthopedic surgeons have found that many total hip replacements fail            after several years, requiring re-operation.  This problem has                  generated much research to find the cause.  Mechanical failure                  processes at the cancellous bone/PMMA cement interface will be studied          using methods from fracture mechanics and damage theory.  The                   hypothesis to be tested is that fibrous tissue at the interface is              caused by relative motion between bone and cement due to crack                  propagation.  Crack propagation models will be developed to test this           theory.
[{'FirstName': 'Leon', 'LastName': 'Keer', 'PI_MID_INIT': 'M', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Leon M Keer', 'EmailAddress': 'l-keer@northwestern.edu', 'NSF_ID': '000459337', 'StartDate': '09/15/1985', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}, {'FirstName': 'Jack', 'LastName': 'Lewis', 'PI_MID_INIT': 'L', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Jack L Lewis', 'EmailAddress': None, 'NSF_ID': '000437118', 'StartDate': '09/15/1985', 'EndDate': None, 'RoleCode': 'Principal Investigator'}]
{'Name': 'Northwestern University', 'CityName': 'EVANSTON', 'ZipCode': '602080001', 'PhoneNumber': '3125037955', 'StreetAddress': '633 CLARK ST', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Illinois', 'StateCode': 'IL', 'CONGRESSDISTRICT': '09', 'CONGRESS_DISTRICT_ORG': 'IL09', 'ORG_UEI_NUM': 'EXZVPWZBLUE8', 'ORG_LGL_BUS_NAME': 'NORTHWESTERN UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '5342', 'Text': 'Disability & Rehab Engineering'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1985&All=true', 'xml': '8501880.xml'}