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A-0267 Carpal Alignment: A New Method for Assessment
C.A. Selles 1, L. Ras 1, M.M.J. Walenkamp 1, M. Maas 2, J.C. Goslings 1, N.W.L. Schep 3, 1 Trauma Unit, Department of Surgery, Academic Medical Center, Amsterdam, the Netherlands; 2 Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands; 3 Department of Trauma and Hand Surgery, Maasstad Hospital, Rotterdam, the Netherland
Thursday, June 14, 2018 · 7:59 a.m. · 05m 38s
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action and then things really make a call here this morning like talk
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to you about a new method the for measuring cup alignments
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and
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why i think it is funny because uh we've seen uh there's a relationship
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between radiological rendered and functional outcome it's always a big debate whether
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they're related or not hand one of these radiological parameters used is a
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couple alignments although it's not one of the most frequent ones used
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and then when this method is used there's always also discussion how should we met measure corporal alignment
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and even though some studies of already said that corporal line is
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one of the only predictors uh for a functional outcome
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so in two thousand eleven this article was of a published which that this is which is now the most commonly
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used method for a measuring cup alignment where you draw a line along that axis uh of the kept eight
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and along a line along the radial shaft and when these two lines cross within the corpus we
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say that we have carpal alignments but this method is not always as easy to reproduce
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so we uh did a study and we wanted to look at the intern internal server variability
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new uh that but because of the perpendicular method and we wanted to compare it to the
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existing method and also wanted to look at the normal distribution of corporal alignment in
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the breasts of an fractured around and fractured race
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so how did we do this we did a retrospective the artificial study we looked at all consecutive adult patients
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with this'll radius fractures type a and type c. with that fifty fractured race and fifty and fractured ribs
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nelson cubic through uh this method and it's based on
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uh using the line of louis describe the
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several years ago and where you draw a a line along and the folder cortex
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and you keep continuing this line and it says if you if you're
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line crosses the centre of the cats it's you've got carpal alignment
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so what does it look like but we compare both methods with each other we see
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using the existing method the white lines for you cross the two lines and you
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see that the cross and the cat in the corpus it says you should have couple
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lyman only look at our method for each other's liner long oval or cortex
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you can actually see it doesn't cost centres that kept it so that we believe that actually you have some now alignments and
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with this method you can also quantify your mouth alignment so in
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this case there was the mel alignment of eight millimetres
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so we did not measurements for both the the existing method in the new
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method uh by three independent reviewers and and with the injury entrap
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server variability uh where what from excellent to pour correlation and then we
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look for the normal distribution as well and these and fractured race
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so we look at our right in terms or variability we
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see every existing method it's quite high or zero
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point eighty nine zero point six three and zero point six by the three observers with the new method
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even higher zero point ninety six zero point eighty eight zero point seven you too
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and then we look at what is quite alignment in and i'm fractured race is the rest and with the cops always online
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we see that according to the most commonly used method right now there
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was only carpal mime in about fifty nine percent of the patients
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and with the other method the perpendicular method we found a couple lines in the seventy nine percent of patients
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what this distribution look my of uh of the alignments you see in the normal rates most
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of the base work are the aligned around zero but it had the
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standard deviation of two and half millimetres fuller and dorsal displacement
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what are the advantages as well about this method uh when taking
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a radio grass roots positioning is always a a factor
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but because of the correlation between the dollar cortex in the cat if we believe uh you don't really have this problem
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so we took some pictures in various degrees of the race uh ten degrees zero degrees minus ten degrees
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and here you see despite different angles of taking your radio crap you still
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have a you're still able to measure the carpal alignments so the way
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of taking a picture doesn't really uh impact uh your measurement
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and but you all is not also have the rest positioning in here we looked
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if you flex or the expenditure raced if you still have corporal alignments
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uh and and you actually see here the red line that
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no matter what service position this is the same raced
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once you have purple line and you hold in different positions are you take it in different angles you still
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have this carpal alignments and so this meant that because i think the relationship with each other um
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is a lot easier to reproduce
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so uh i think you'd actually this perpendicular method we believe it's in new repeat useful method for measuring
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carpal lyman it takes away a lot of the disadvantages
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of risk positioning a radio graph uh techniques
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and you're also able to um quantifier measure of uh over the amount of now alignment
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and believe that the next step is the testing this new method and seeing what
Conference Program
A-0267 Carpal Alignment: A New Method for Assessment
C.A. Selles 1, L. Ras 1, M.M.J. Walenkamp 1, M. Maas 2, J.C. Goslings 1, N.W.L. Schep 3, 1 Trauma Unit, Department of Surgery, Academic Medical Center, Amsterdam, the Netherlands; 2 Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands; 3 Department of Trauma and Hand Surgery, Maasstad Hospital, Rotterdam, the Netherland
June 14, 2018 · 7:59 a.m.
A-0267 Carpal Alignment: A New Method for Assessment - Q&A
June 14, 2018 · 8:05 a.m.
A-1076 The scapholunate gap increases with forearm supination. A laboratory study.
Mireia Esplugas 1, Guillem Salvà-Coll 2,3, Marc Garcia-Elias 4, Alex Lluch-Bergadà 4,5, Manuel Llusá-Pérez 6, Spain
June 14, 2018 · 8:07 a.m.
A-1076 The scapholunate gap increases with forearm supination. A laboratory study. Q&A
June 14, 2018 · 8:13 a.m.
A-0047 How Reliable is the Radiographic Diagnosis of Mild Madelung Deformity?
Sebastian Farr 1, Thierry G. Guitton 2, David Ring 3, Science of Variation Group, 1 Orthopedic Hospital Speising, Vienna, Austria; 2 University Medical Center, Groningen, The Netherlands; 3 Dell Medical School - The University of Texas, Austin, TX, USA
June 14, 2018 · 8:17 a.m.
A-0047 How Reliable is the Radiographic Diagnosis of Mild Madelung Deformity? Q&A
June 14, 2018 · 8:22 a.m.
A-0206 Comparison of Contact and Non-contact Ultrasound Examination of the Hand
Rebecca Lim 1, Chin Shu Ting 2, Chan Kai Li 2, Abby Choke 1, Tay Shian Chao 1,2, Duncan Angus McGrouther 1,2, 1 Department of Hand Surgery, Singapore General Hospital, Singapore; 2 Biomechanics Laboratory, Singapore General Hospital, Singapore
June 14, 2018 · 8:25 a.m.
A-0206 Comparison of Contact and Non-contact Ultrasound Examination of the Hand - Q&A
June 14, 2018 · 8:30 a.m.
A-0952 Contribution of ultrasound in the preoperative assessment of partial wrist denervation: an cadaveric and comparative study.
Vanessa costil, Thomas Apard, Ultrasound Surgery of the Hand, Private Hospital of Versailles, France
June 14, 2018 · 8:31 a.m.
135 views
A-0876 Diagnosis of hand and forearm fractures in whole body CT after polytrauma
Friederike Mu?nn 1, Andreas Eisenschenk 1,2, Martin Lautenbach 3, Tobias Topp 3, Simon Kim 1, Universitätsmedizin Greifswald, Germany; 2 Unfallkrankenhaus Berlin, Germany; 3 Krankenhaus Waldfriede Berlin, Germany
June 14, 2018 · 8:40 a.m.
A-0876 Diagnosis of hand and forearm fractures in whole body CT after polytrauma - Q&A
June 14, 2018 · 8:45 a.m.
A-0630 Assessment of scaphoid fracture patterns using a 3D-CT model
Gernot Schmidle, Rohit Arora, Markus Gabl, Department for Trauma Surgery, Medical University Innsbruck, Innsbruck, Austria
June 14, 2018 · 8:48 a.m.
297 views
