863 research outputs found
Does Prior Acromioplasty Increase the Incidence of Acromial Fracture Following Reverse Total Shoulder Arthroplasty? A Retrospective Matched Cohort Analysis
Introduction: Reverse total shoulder arthroplasty (RTSA) is an effective treatment option for multiple shoulder pathologies. Arthroscopic acromioplasty is a treatment for subacromial impingement. RTSA can place excess stress on the acromion. No studies have evaluated outcomes following RTSA among patients with prior acromioplasty. The purpose of this study was to report outcomes in patients following RTSA who have had a prior acromioplasty. The authors hypothesized patients with prior acromioplasty who undergo RTSA will have significant improvements in clinical outcomes with no increased risk of acromial fracture.
Methods: Patients from a single institution who underwent RTSA with a history of acromioplasty from 2009 to 2017 with two-year follow up were identified. Clinical outcome scores were obtained using ASES, SST, VAS, and SANE surveys. X-rays and charts will be reviewed to determine if patients sustained anacromion fracture following RTSA. Patients will be matched to a cohort of patients who underwent RTSA without a prior acromioplasty.These groups will be compared to determine any differences in clinical outcome scores or number of postoperative acromial fractures.
Results: 45 patients were included.Average outcomes scores were: ASES:70.7%, SST: 62.1%, VAS: 2.4, and a SANE: 60.6%. On average, active external rotation improved from 33.1° to 37.1° and forward elevation improved from 92.2° to 136.1°.
Discussion: While data collection in the matched cohort remains ongoing to compare the outcomes of RTSA with prior acromioplasty to the outcomes of RTSA alone, initial data suggests history of acromioplasty does not negatively impact RTSA outcomes
Cerebral Blood Volume Changes During Radiotherapy May Predict Pseudoprogression versus Disease Progression for Patients with High Grade Glioma
https://openworks.mdanderson.org/sumexp21/1040/thumbnail.jp
Retrospective Determination of Prognostic Factors in BRAF-V600E Melanoma Brain Metastases​
View full abstracthttps://openworks.mdanderson.org/leading-edge/1030/thumbnail.jp
Robotic Wireless Sensor Networks
In this chapter, we present a literature survey of an emerging, cutting-edge,
and multi-disciplinary field of research at the intersection of Robotics and
Wireless Sensor Networks (WSN) which we refer to as Robotic Wireless Sensor
Networks (RWSN). We define a RWSN as an autonomous networked multi-robot system
that aims to achieve certain sensing goals while meeting and maintaining
certain communication performance requirements, through cooperative control,
learning and adaptation. While both of the component areas, i.e., Robotics and
WSN, are very well-known and well-explored, there exist a whole set of new
opportunities and research directions at the intersection of these two fields
which are relatively or even completely unexplored. One such example would be
the use of a set of robotic routers to set up a temporary communication path
between a sender and a receiver that uses the controlled mobility to the
advantage of packet routing. We find that there exist only a limited number of
articles to be directly categorized as RWSN related works whereas there exist a
range of articles in the robotics and the WSN literature that are also relevant
to this new field of research. To connect the dots, we first identify the core
problems and research trends related to RWSN such as connectivity,
localization, routing, and robust flow of information. Next, we classify the
existing research on RWSN as well as the relevant state-of-the-arts from
robotics and WSN community according to the problems and trends identified in
the first step. Lastly, we analyze what is missing in the existing literature,
and identify topics that require more research attention in the future
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