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Michael Mason

Publications and source records attributed to Michael Mason.

5 recordsLinked to original sources
PubMed2006

An accurate and reproducible method for locating the joint line during a revision total knee arthroplasty.

Studies have shown that the position of the joint line has a direct effect on postoperative results, including range of motion, functional knee scores, and midflexion stability. Four anatomic landmarks were investigated as references for locating the joint line during a revision knee surgery--the medial femoral epicondyle, the fibular head, the tibial tubercle, and the inferior pole of the patella. Measurements from 6 cadaver knees identified the distance of each landmark to the joint line. These distances were used to design instruments to aid in the intraoperative positioning of the joint line. The instruments were validated on 94 primary total knees. The instrument referencing the medial epicondyle had 99% and 93% accuracy for locating the natural position of the joint line within 5 and 3 mm, respectively.

Aged↗
PubMed2006

A framework for mental health consumers to evaluate service provision.

OBJECTIVES: This paper outlines a proposed framework including values, principles and steps, developed by consumers, to evaluate mental health services from a consumer's perspective. METHOD: A research team consisting of consumer researchers, established academics and students developed the framework. The team had already conducted qualitative research with consumers of mental health services. Using these experiences and the evaluation literature, the proposed framework was developed over a series of 13 meetings. RESULTS: An evaluation framework, which describes the values underpinning consumer-directed evaluation of mental health services and the principles and steps to follow in conducting this type of evaluation, is presented. CONCLUSIONS: The evaluation framework will guide consumers and services in conducting consumer-directed evaluation of mental health services, and assist in developing more genuine consumer participation in services.

Australia↗
PubMed2005

A new face.

Explore the source record for details and available documents.

Face↗
PubMed2004

Substance use, social networks, and the geography of urban adolescents.

This article demonstrates a research strategy and prevention methodology for substance using urban youth that incorporates individual, social, and geographical parameters to systematically understand the ecology of risk and protection for urban youth. The primary goal of this study was to describe and analyze substance using and nonusing urban adolescents' social networks; risky and protective settings where they socialize; and the relationship to health outcomes such as substance use, depression, and stress. Geographic Information Systems (GIS) derived spatial relationships and analyses between the specific locations where the teens are active, their subjective ratings of these locations, and objective environmental risk data. These social network and GIS data were merged to form a detailed description and analysis of the social ecology of urban adolescent substance use. A case study was constructed to illustrate the methodology of creating a three-dimentional ecological profile that helps explain these relationships and provides preventive applications. Linear distances were computed between the homes of the users and the risky and safe places that they identified. On average, the distance between users' homes and their identified safe places was three times the distance between their homes and their identified risky places. This study provides support for understanding urban adolescent substance use through the detailed and multiple dimensional analysis of teens' social ecologies.

Adolescent↗