Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association · 2017
An Anatomic Evaluation of Arthroscopic Access to the Radial Head.
СтатьяНазвание и аннотация: Перевод в очереди
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Hodax Jonathan D, Blood Travis D, Kleinhenz Dominic T, Gorman Megan, Biercevicz Alison, DaSilva Manuel
Аннотация
PURPOSE: To determine the area of the radial head accessible for visualization and screw placement from the standard anteromedial and anterolateral portals used in elbow arthroscopy.
METHODS: Five cadaveric elbows were arthroscopically evaluated using standard anteromedial and anterolateral portals. Markers (pins) were placed into the accessible portions of the radial head at maximal pronation and supination. Specimens were then evaluated by computed tomography, and the arc of the radial head accessible from each portal was determined.
RESULTS: A continuous 220.04° ± 37.58° arc of the radial head was accessible from the combination of the anterolateral and anteromedial portals. From the anteromedial portal, the arc obtained measured 147.96° ± 21.81°, and from the anterolateral portal, the arc obtained measured 156.02° ± 33.32°. Using the radial styloid as a marker for 0°, the mean total arc ranged from 92.3° ± 34.06° dorsal to 127.74° ± 23.65° volar relative to the radial styloid.
CONCLUSIONS: Standard anteromedial and anterolateral portals used for elbow arthroscopy allow access to an average 220° area of the radial head.
CLINICAL RELEVANCE: This study defines the area of the radial head that can be contacted using commonly used, safe, and simple portals.
METHODS: Five cadaveric elbows were arthroscopically evaluated using standard anteromedial and anterolateral portals. Markers (pins) were placed into the accessible portions of the radial head at maximal pronation and supination. Specimens were then evaluated by computed tomography, and the arc of the radial head accessible from each portal was determined.
RESULTS: A continuous 220.04° ± 37.58° arc of the radial head was accessible from the combination of the anterolateral and anteromedial portals. From the anteromedial portal, the arc obtained measured 147.96° ± 21.81°, and from the anterolateral portal, the arc obtained measured 156.02° ± 33.32°. Using the radial styloid as a marker for 0°, the mean total arc ranged from 92.3° ± 34.06° dorsal to 127.74° ± 23.65° volar relative to the radial styloid.
CONCLUSIONS: Standard anteromedial and anterolateral portals used for elbow arthroscopy allow access to an average 220° area of the radial head.
CLINICAL RELEVANCE: This study defines the area of the radial head that can be contacted using commonly used, safe, and simple portals.