Dataset Information

Use of a Pneumatic Limb Positioner for Invasive Skeletal Traction in Posterior Hindfoot Arthroscopy.

ABSTRACT: Posterior hindfoot arthroscopy is a useful tool to treat a variety of foot and ankle pathologies. Skeletal distraction of the hindfoot to increase visualization in posterior ankle arthroscopy has been described in previous studies, but the described distractor is not readily available in most operating rooms. We describe a case of posterior hindfoot distraction in the prone position using a pneumatic limb positioner and other readily available Food and Drug Administration-approved equipment to apply tension to a transcalcaneal wire. The distraction technique we describe does not require any custom equipment, can fit on most standard operating tables, and is readily available in standard operating rooms. This method achieves adequate distraction, resulting in better visualization and more space for arthroscopic instrumentation.

SUBMITTER: Vopat BG

PROVIDER: S-EPMC4661769 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature

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Use of a Pneumatic Limb Positioner for Invasive Skeletal Traction in Posterior Hindfoot Arthroscopy.

Vopat Bryan G BG Lareau Craig R CR Sangal Rohit B RB Fantry Amanda J AJ Blankenhorn Brad D BD

Arthroscopy techniques 20150907 5

Posterior hindfoot arthroscopy is a useful tool to treat a variety of foot and ankle pathologies. Skeletal distraction of the hindfoot to increase visualization in posterior ankle arthroscopy has been described in previous studies, but the described distractor is not readily available in most operating rooms. We describe a case of posterior hindfoot distraction in the prone position using a pneumatic limb positioner and other readily available Food and Drug Administration-approved equipment to a ...[more]

PMID: 26697297

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Project description:BackgroundIsolated limb perfusion (ILP) is a regional surgical treatment for localized metastatic disease. High doses of chemotherapeutic agents are administered within an extracorporeal circulated isolated extremity, treating the metastasis, while systemic toxicity is avoided. To our knowledge, indexed oxygen supply/demand relationship during ILP has not previously been described. Our aim was to measure and describe oxygen metabolism, specifically oxygen delivery, consumption, and extraction, in an isolated leg/arm during ILP. Also investigate whether invasive oxygenation measurement during ILP correlates and can be used interchangeable with the non-invasive method, near infrared spectroscopy (NIRS).MethodsData from 40 patients scheduled for ILP were included. At six time points blood samples were drawn during the procedure. DO2, VO2, and O2ER were calculated according to standard formulas. NIRS and hemodynamics were recorded every 10 min.ResultsFor all observations, the mean of DO2 was 190±59 ml/min/m2, VO2 was 35±8 ml/min/m2, and O2ER was 21±8%. VO2 was significantly higher in legs compared to arms (38±8 vs. 29±7 ml/min/m2, p=0.02). Repeated measures showed a significant decrease in DO2 in legs (209±65 to 180±66 ml/min/m2, p=<0.01) and in arms (252±72 to 150±57 ml/min/m2, p=<0.01). Significant increase in O2ER in arms was also found (p=0.03). Significant correlation was detected between NIRS and venous extremity oxygen saturation (SveO2) (rrm=0.568, p=<. 001, 95% CI 0.397-0.701). When comparing SveO2 and NIRS using a Bland-Altman analysis, the mean difference (bias) was 8.26±13.03 (p=<. 001) and the limit of agreement was - 17.28-33.09, with an error of 32.5%.ConclusionDO2 above 170 ml/min/m2 during ILP kept O2ER below 30% for all observations. NIRS correlates significant to SveO2; however, the two methods do not agree sufficiently to work interchangeable. Clinical Trial Registration URL: https://www.clinicaltrials.gov. Unique identifier: NCT04460053 and NCT03073304.

Dataset Information

Use of a Pneumatic Limb Positioner for Invasive Skeletal Traction in Posterior Hindfoot Arthroscopy.

Publications

Use of a Pneumatic Limb Positioner for Invasive Skeletal Traction in Posterior Hindfoot Arthroscopy.

Similar Datasets

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