Evaluation of humeral head replacements using time-action analysis

Minekus, Joanne P.J.; Rozing, P. M.; Valstar, Edward R.; Dankelman, Jenny

doi:10.1067/mse.2003.14

Cited by 23 publications

(11 citation statements)

References 14 publications

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“…It can be performed asynchronously by having the observer analyze video recordings of the subject behavior in the work environment (also called “time-action analysis”[14][15]), but it is mostly conducted by directly observing and following the subject in real-time. Subjects might feel disturbed, and sometimes an improvement in performance can be evidenced by the presence of an external observer: a phenomenon known as the Hawthorne effect 1 .…”

Section: Resultsmentioning

confidence: 99%

Time motion studies in healthcare: What are we talking about?

Lopetegui

Yen

Lai

et al. 2014

Journal of Biomedical Informatics

232

208

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Time motion studies were first described in the early 20th century in industrial engineering, referring to a quantitative data collection method where an external observer captured detailed data on the duration and movements required to accomplish a specific task, coupled with an analysis focused on improving efficiency. Since then, they have been broadly adopted by biomedical researchers and have become a focus of attention due to the current interest in clinical workflow related factors. However, attempts to aggregate results from these studies have been difficult, resulting from a significant variability in the implementation and reporting of methods. While efforts have been made to standardize the reporting of such data and findings, a lack of common understanding on what “time motion studies” are remains, which not only hinders reviews, but could also partially explain the methodological variability in the domain literature (duration of the observations, number of tasks, multitasking, training rigor and reliability assessments) caused by an attempt to cluster dissimilar sub-techniques. A crucial milestone towards the standardization and validation of time motion studies corresponds to a common understanding, accompanied by a proper recognition of the distinct techniques it encompasses. Towards this goal, we conducted a review of the literature aiming at identifying what is being referred to as “time motion studies”. We provide a detailed description of the distinct methods used in articles referenced or classified as “time motion studies”, and conclude that currently it is used not only to define the original technique, but also to describe a broad spectrum of studies whose only common factor is the capture and/or analysis of the duration of one or more events. To maintain alignment with the existing broad scope of the term, we propose a disambiguation approach by preserving the expanded conception, while recommending the use of a specific qualifier “continuous observation time motion studies” to refer to variations of the original method (the use of an external observer recording data continuously). In addition, we present a more granular naming for sub-techniques within continuous observation time motion studies, expecting to reduce the methodological variability within each sub-technique and facilitate future results aggregation.

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Section: Resultsmentioning

confidence: 99%

Time motion studies in healthcare: What are we talking about?

Lopetegui

Yen

Lai

et al. 2014

Journal of Biomedical Informatics

232

208

View full text Add to dashboard Cite

show abstract

“…Time-action analysis is a video-based quantitative method that can be used to evaluate surgical technique and learning more objectively [14], but is not practical in a clinical setting.…”

Section: Introductionmentioning

confidence: 99%

Learning curves in hip fracture surgery

Bjørgul

Novicoff

Saleh

2010

International Orthopaedics (SICOT)

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The aim of this study was to identify and characterise learning curves in hip fracture surgery. Operating times were collected and related to the number of procedures done by residents performing closed reduction and internal fixation using cannulated screws for intracapsular fractures of the hip and cephalomedullary nailing for trochanteric fractures, as well as hemiarthroplasty for displaced intracapsular fractures. The mean operating times decreased significantly for all four procedures studied, though at different rates. For cannulated screws, the mean duration of surgery decreased from 47.8 minutes to 30.1 minutes for procedures 21-25. For cephalomedullary nailing without distal locking, the mean operating time decreased from 73.3 minutes to 36.3 minutes. For cephalomedullary nailing with distal locking, the mean operating time decreased from 81.7 minutes to 56.9 minutes. The mean operating time for hemiarthroplasty decreased from 97.3 minutes to 66.0 minutes. Mean operating times decreased significantly for all procedures studied, though at different rates, indicating a unique learning curve for each procedure.

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“…Although widely used in other fields (e.g. surgery [15], [16]), it is, to the knowledge of the authors, hardly used for (non-medical) teleoperated task execution. In a previous study by the authors, a high-level task analysis was performed on logbook and video data of real executed remote maintenance tasks at the operational fusion facility JET (the closest comparison to the envisioned maintenance at ITER) [17].…”

Section: Introductionmentioning

confidence: 99%

A task analysis approach to quantify bottlenecks in task completion time of telemanipulated maintenance

Boessenkool¹,

Wildenbeest

Heemskerk³

et al. 2018

Fusion Engineering and Design

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Telemanipulation techniques allow for human-in-the-loop assembly and maintenance tasks in otherwise inaccessible environments. Although it comes with limitations in achieved performance -required strict operator selection and extensive training are widely encountered -there is very little quantitative insight in the exact problems operators encounter during task execution. This paper provides a novel hierarchical task analysis approach to identify the most time-consuming subtask elements and to quantify the potential room for performance improvement during telemanipulated maintenance tasks. The approach is illustrated with a human factors case study in which 5 subjects performed six generic maintenance tasks, using a six degree of freedom master device connected to a simulated task environment. Overall it can be concluded that the proposed Three Phased Task Analysis is a useful tool to guide improvements since it is able to relate high-level problems (e.g. large variability) to behaviour on lower task-levels. For the case study, the largest potential for improvement was found for specific subtasks characterized by complex contact transitions and precise control of tool orientation, and in the reduction of variation of the task execution.

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Evaluation of humeral head replacements using time-action analysis

Cited by 23 publications

References 14 publications

Time motion studies in healthcare: What are we talking about?

Time motion studies in healthcare: What are we talking about?

Learning curves in hip fracture surgery

A task analysis approach to quantify bottlenecks in task completion time of telemanipulated maintenance

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