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Biomedical subjects

Michael Battaglia

Publications and source records attributed to Michael Battaglia.

4 recordsLinked to original sources
PubMed2005

The docking technique for posterolateral corner reconstruction.

Posterolateral corner injuries of the knee are an uncommon but potentially debilitating injury. They are easily missed on physical examination and are often associated with alternate ligament pathology. When identified early, these injuries are best managed by primary repair with or without augmentation of the involved structures. However, chronic injuries are generally not amenable to primary repair and often require reconstruction. Experimental data suggest that the lateral collateral ligament and popliteofibular ligament present critical biomechanical restraints of the posterolateral aspect of the knee and should be incorporated into contemporary reconstruction techniques. We describe a novel method of reconstructing these critical components of the posterolateral corner using a new docking technique for fixation on the femur with a graft placed through a fibular head tunnel.

Humans↗
PubMed2004

Underimmunization among children: effects of vaccine safety concerns on immunization status.

OBJECTIVE: To examine the attitudes, beliefs, and behaviors of parents whose children were underimmunized with respect to > or =2 vaccines that have recently received negative attention, compared with parents whose children were fully immunized with respect to the recommended vaccines. DESIGN: Case-control study. SETTING: A sample of households that participated in the National Immunization Survey were recontacted in 2001. MAIN OUTCOME MEASURE: Vaccination status was assessed. Case subjects were underimmunized with respect to > or =2 of 3 vaccines (diphtheria-tetanus-pertussis or diphtheria-tetanus-acellular pertussis, hepatitis B, or measles-containing vaccines), and control subjects were fully immunized. RESULTS: The response rate was 52.1% (2315 of 4440 subjects). Compared with control households, case households were more likely to make 0 dollar to 30,000 dollars (adjusted odds ratio [OR]: 2.7; 95% confidence interval [CI]: 1.5-4.6) than at least 75,000 dollars, to have > or =2 providers (OR: 2.0; 95% CI: 1.3-3.1) than 1, and to have > or =4 children (OR: 3.1; 95% CI: 1.5-6.3) than 1 child. With control for demographic and medical care factors, case subjects were more likely than control subjects to not want a new infant to receive all shots (OR: 3.8; 95% CI: 1.5-9.8), to score vaccines as unsafe or somewhat safe (OR: 2.0; 95% CI: 1.2-3.4), and to ask the doctor or nurse not to give the child a vaccine for reasons other than illness (OR: 2.7; 95% CI: 1.2-6.1). Among case subjects, 14.8% of underimmunization was attributable to parental attitudes, beliefs, and behaviors. CONCLUSIONS: Attitudes, beliefs, and behaviors indicative of vaccine safety concerns contribute substantially to underimmunization in the United States. Although concerns were significantly more common among parents of underimmunized children, many parents of fully immunized children demonstrated similar attitudes, beliefs, and behaviors, suggesting a risk to the currently high vaccination levels. Efforts to maintain and improve immunization coverage need to target those with attitudes/beliefs/behaviors indicative of vaccine safety concerns, as well as those with socioeconomic and health care access problems.

Attitude to Health↗
PubMed2002

Measured and predicted changes in tree and stand water use following high-intensity thinning of an 8-year-old Eucalyptus nitens plantation.

We investigated changes in the pattern of water use of an 8-year-old Eucalyptus nitens (Deane and Maiden) Maiden plantation soon after thinning. Sap flow sensors using heat pulse technology were deployed across three stands thinned to a final density of 100, 250 or 600 trees ha-1 plus an unthinned control (1250 trees ha-1). Changes in the relationship between tree size and daily water use were measured for 4 to 7 months after thinning. Thinning had no effect on sapwood water content. The increase in tree water use as a result of thinning was driven largely by significant changes in the radial pattern of sap velocity through the sapwood. The use of a canopy fraction factor in the Penman-Monteith equation to account for discontinuous canopies showed promise as a simple and effective method of scaling the model to predict transpiration from thinned plantations.

Circadian Rhythm↗