2007
DOI: 10.1302/0301-620x.89b6.18975
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The influence of lateral and anterior angulation of the proximal ulna on the treatment of a Monteggia fracture

Abstract: We have investigated the anatomy of the proximal part of the ulna to assess its influence on the use of plates in the management of fractures at this site. We examined 54 specimens from cadavers. The mean varus angulation in the proximal third was 17.5 degrees (11 degrees to 23 degrees ) and the mean anterior deviation 4.5 degrees (1 degrees to 14 degrees ). These variations must be considered when applying plates to the dorsal surface of the ulna for Monteggia-type fractures. A pre-operative radiograph of the… Show more

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Cited by 59 publications
(42 citation statements)
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“…Following Bado's classification, this injury would be a Monteggia Type I fracture-dislocation produced by a complete fracture of the upper third of the ulna (Figure 1). Consequently, and as usually happens (Grechenig et al, 2007;Rouleau et al, 2010), this bone is deformed with two abnormal angulations: an anteroposterior estimated at 15° and a lateral at 29°( Figure 5, Figure 7). It should be noted that in complete fractures, the most frequent type of curvature is the antecurvatum (Trias, 1989), in which a concavity is formed in the posterior part of the bone.…”
Section: Examination Of the Fracturementioning
confidence: 87%
“…Following Bado's classification, this injury would be a Monteggia Type I fracture-dislocation produced by a complete fracture of the upper third of the ulna (Figure 1). Consequently, and as usually happens (Grechenig et al, 2007;Rouleau et al, 2010), this bone is deformed with two abnormal angulations: an anteroposterior estimated at 15° and a lateral at 29°( Figure 5, Figure 7). It should be noted that in complete fractures, the most frequent type of curvature is the antecurvatum (Trias, 1989), in which a concavity is formed in the posterior part of the bone.…”
Section: Examination Of the Fracturementioning
confidence: 87%
“…Die knö-cherne Architektur der proximalen Ulna ist durch eine Varusangulation von 17° (Winkel zwischen proximalem und distalem Ulnaschaft) -den "radial bow" -gekennzeichnet [7,20,21]. Die anteriore Deviation wird von Rouleau et al [14] in einer radiologischen Vermessung der proximalen Ulna mit durchschnittlich 5,7° (Achsabweichung der Ulna in der seitlichen Projektion) angegeben.…”
Section: Die Doppelplatten Osteosynthese Der Proximalen Ulnaunclassified
“…Grechenig et al beschreiben in ihrer Studie an Leichenpräparaten eine anteriore Deviation von durchschnittlich 4,5°. Die Spanne betrug 1-14° [7]. Dies verdeutlicht, die große Variabilität der anatomischen Konfiguration der proximalen Ulna.…”
Section: Die Doppelplatten Osteosynthese Der Proximalen Ulnaunclassified
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“…Consequently, an exact restoration of length, axis, and rotation of the ulna is important. The position of the dorsal plate apparently has an influence on the onset of secondary complications [21]. Korner et al [4] mentioned that in three cases the medial positioning of the dorsal plate causes an nonphysiological dorsal angulation of the ulna.…”
Section: Treatment Of the Ulna Fracturementioning
confidence: 99%