Rearrangement of the Guy's stone score improves prediction of stone-free rate after percutaneous nephrolithotomy.

Objective: We propose a modification of the original Guy's Stone Score (GSS) to hold on 20 % of prognostic discrimination among groups which makes this score a more reliable resource for risk assessment in patients undergoing percutaneous nephrolithotomy (PCNL).

Material And Methods: Historical cohort of 126 patients undergoing PCNL from December 2010 to November 2014 was included in the survey. Every patient was classified according to the original GSS.

Arbona system reengineered in the Garcia-Ariz Model: a national health reform plan from an orthopedics program perspective.

During the 1950's the healthcare system of Puerto Rico was maintained exclusively by the local government. The Arbona system, as it came to be known, although it provided health care professionals on the island with multiple educational experiences, presented substantial costs for the government. In the early 1990's a program of privatization known as "La Reforma" was implemented with the ultimate goal of providing a universal coverage system for the poor and the needy.