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Mark Taylor

Publications and source records attributed to Mark Taylor.

At least 73 records · Page 4Linked to original sources
PubMed2005

Changing the balance. In ordering Evanston Northwestern to divest a hospital, the FTC could give insurers more power in negotiating with providers.

As officials at Evanston Northwestern Healthcare plan their appeal of an order to divest one of its three hospitals, hospitals around the country ponder the national implications of the ruling. Industry observers say the action means hospitals may have a harder time merging to gain leverage with insurers. The AHA's Melinda Hatton, right, says she was "deeply disappointed" but not surprised by the ruling.

Antitrust Laws↗
PubMed2005

Finite element modelling of glenohumeral kinematics following total shoulder arthroplasty.

Due to the shallowness of the glenohumeral joint, a challenging but essential requirement of a glenohumeral prosthesis is the prevention of joint dislocation. Weak glenoid bone stock and frequent dysfunction of the rotator cuff, both of which are common with rheumatoid arthritis, make it particularly difficult to achieve this design goal. Although a variety of prosthetic designs are commercially available only a few experimental studies have investigated the kinematics and dislocation characteristics of design variations. Analytical or numerical methods, which are predictive and more cost-effective, are, apart from simple rigid-body analyses, non-existent. The current investigation presents the results of a finite element analysis of the kinematics of a total shoulder joint validated using recently published experimental data for the same prostheses. The finite element model determined the loading required to dislocate the humeral head, and the corresponding translations, to within 4% of the experimental data. The finite element method compared dramatically better to the experimental data (mean difference=2.9%) than did rigid-body predictions (mean difference=37%). The goal of this study was to develop an accurate method that in future studies can be used for further investigations of the effect of design parameters on dislocation, particularly in the case of a dysfunctional rotator cuff. Inherently, the method also evaluates the glenoid fixation stresses in the relatively weak glenoid bone stock. Hence, design characteristics can be simultaneously optimised against dislocation as well as glenoid loosening.

Arthroplasty, Replacement↗
PubMed2005

The ties that bind. Proposed IRS regulations would put an organization's tax exemption at risk for the behavior of its executives and board.

Newly proposed IRS regulations have a simple message for not-for-profit hospitals: If you want to keep your tax-exempt status, don't engage in excess-benefit transactions. The proposals arrive as compliance officers are paying more attention to the issue. "I wouldn't say that tax awareness is high, but it's higher than ever before," says Lisa Murtha, right.

Conflict of Interest↗