Posterior wall blowout is an important potential source of anterior cruciate ligament reconstruction failures that can be avoided if surgeons adhere to proper technique and are vigilant in confirming appropriate femoral tunnel placement. This article reviews techniques for avoidance, recognition, and salvage of posterior wall blowouts in anterior cruciate ligament reconstruction surgery.

ABSTRACT The objective of the research is to inform response decision-making and understanding potential association spilled oil with marine snow in Cook Inlet, Alaska. While extensive has been conducted on minerals aggregating oil, larger organic aggregates, such as snow, have only recently studied a transport mechanism. This knowledge gap fate was highlighted part Gulf Mexico Research Initiat...

Incidents involving loss of control oil/gas wells can result in large but variable emissions whose impact on the global methane budget is currently unknown. On November 1, 2019, a gas well blowout was reported Eagle Ford Shale. By combining satellite observations at different spatial and temporal scales, we quantified 10 times during 20-day event. Our multisatellite synthesis captures both shor...

A model developed to simulate the behavior of oil and gas accidentally released from deep water is presented. This model presents major modifications to a three-dimensional model developed earlier (Yapa and Zheng, 1997) that simulate the behaviour of oil from under water accidents (shallow water). In deepwater, the ultra-high pressure and cold temperature causes phase changes in gases. These co...

The April 20, 2010 Deepwater Horizon oil rig explosion was an engineering and environmental tragedy that led to the loss of 11 human lives and has had far-reaching environmental and economic impacts, the full extent of which is difficult if not impossible to calculate. In 2015 the explosion continues to impact those 11 individual’s families; it continues to have a far-reaching emotional impact ...

-Since removal of cattle from Arapaho Prairie in 1977, secondary succession has resulted in increased vegetation cover. Studies of resident lizards on a 150 X 150 m grid revealed: (1) one lizard species (Holbrookia maculata) has essentially been eliminated in 15 yr (from a maximum of 74 residents in 1979 to three residents in 1993); (2) a second lizard population (Sceloporus undulatus) has decl...