Iowa Energy and Waste News, Winter 2007, Vol. 1, no.1

Newsletter produced by Iowa Department of Natural Resources about energy and waste in Iowa

Audit report on the Butler County Solid Waste Commission for the year ended June 30, 2007

Audit report on the Butler County Solid Waste Commission for the year ended June 30, 2007

Audit report on the Wayne-Ringgold-Decatur County Solid Waste Management Commission for the year ended June 30, 2007

Audit report on the Wayne-Ringgold-Decatur County Solid Waste Management Commission for the year ended June 30, 2007

Audit report on the Jones County Solid Waste Management Commission for the year ended June 30, 2007

Audit report on the Jones County Solid Waste Management Commission for the year ended June 30, 2007

Special investigation of Hardin County Solid Waste Disposal Commission for the period January 1, 2002 through December 31, 2007

Special investigation of Hardin County Solid Waste Disposal Commission for the period January 1, 2002 through December 31, 2007

Audit report on the Shelby County Area Solid Waste Agency for the year ended June 30, 2007

Audit report on the Shelby County Area Solid Waste Agency for the year ended June 30, 2007

Audit report on the Rural Iowa Waste Management Association for the year ended June 30, 2007

Audit report on the Rural Iowa Waste Management Association for the year ended June 30, 2007

Audit report on the Pocahontas County Solid Waste Commission for the year ended June 30, 2007

Audit report on the Pocahontas County Solid Waste Commission for the year ended June 30, 2007

Audit report on the Delaware County Solid Waste Disposal Commission for the year ended June 30, 2007

Audit report on the Delaware County Solid Waste Disposal Commission for the year ended June 30, 2007

Audit report on the Crawford County Area Solid Waste Agency Commission for the year ended June 30, 2007

Audit report on the Crawford County Area Solid Waste Agency Commission for the year ended June 30, 2007

Audit report on the Hardin County Sanitary Solid Waste Disposal Commission for the year ended June 30, 2007

Audit report on the Hardin County Sanitary Solid Waste Disposal Commission for the year ended June 30, 2007

Audit report on the Great River Regional Waste Authority for the year ended June 30, 2007

Audit report on the Great River Regional Waste Authority for the year ended June 30, 2007

Report on the Shelby County Area Solid Waste Agency for the year ended June 30, 2008

Report on the Shelby County Area Solid Waste Agency for the year ended June 30, 2008

Audit report on the Butler County Solid Waste Commission for the year ended June 30, 2008

Audit report on the Butler County Solid Waste Commission for the year ended June 30, 2008

Total shoulder arthroplasty: downward inclination of the glenoid component to balance supraspinatus deficiency.

HYPOTHESIS: Supraspinatus deficiency associated with total shoulder arthroplasty (TSA) provokes eccentric loading and may induce loosening of the glenoid component. A downward inclination of the glenoid component has been proposed to balance supraspinatus deficiency. METHODS: This hypothesis was assessed by a numeric musculoskeletal model of the glenohumeral joint during active abduction. Three cases were compared: TSA with normal muscular function, TSA with supraspinatus deficiency, and TSA with supraspinatus deficiency and downward inclination of the glenoid. RESULTS: Supraspinatus deficiency increased humeral migration and eccentric loading. A downward inclination of the glenoid partly balanced the loss of stability, but this potential advantage was counterbalanced by an important stress increase within the glenoid cement. The additional subchondral bone reaming required to incline the glenoid component indeed reduced the bone support, increasing cement deformation and stress. CONCLUSION: Glenoid inclination should not be obtained at the expense of subchondral bone support.