Comparison of clinical outcome of pronation external rotation versus supination external rotation ankle fractures

Patrick C. Schottel, Marschall B. Berkes, Milton T.M. Little, Matthew Garner, Peter D. Fabricant, Lionel E. Lazaro, David L. Helfet, Dean G. Lorich

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Background: A pronation external rotation (PER) ankle fracture is a relatively uncommon injury. The purpose of this study was to examine the immediate and short-term clinical outcomes of operatively treated PER IV ankle fractures and compare them with a similarly treated cohort of supination external rotation IV (SER IV) fractures. Methods: 22 PER IV and 108 SER IV fractures were identified from a single surgeon's prospectively collected database from 2004 to 2010. All patients were treated with fracture fragment and ligament specific fixation during the same time period by the same surgeon. Postoperative radiographs and bilateral ankle computed tomography (CT) scans were reviewed for articular incongruity, syndesmotic malreduction, and loss of reduction. Clinical outcome measures, including the Foot and Ankle Outcome Score (FAOS) and ankle range of motion (ROM), were collected at latest follow-up visit. Results: There was no difference in the rate of wound complications, fracture nonunion, or loss of reduction between the PER IV and SER IV groups. There was no significant difference in the incidence of postoperative articular incongruity (19% vs 8%, P = .23); however, the PER IV cohort was found to have a significantly higher rate of syndesmotic malreduction (40% vs 18%, P = .04). No clinically or statistically significant differences were detected between the 2 groups in regard to all FAOS domains. Conclusion: In a cohort of operatively treated PER IV fractures, fracture fragment and ligament specific fixation resulted in good short-term outcomes that were comparable to those seen in similarly treated patients with an SER IV fracture pattern. However, a notably greater number of syndesmotic malreductions were noted in the PER IV cohort, and therefore heightened scrutiny is recommended in treating this particular injury pattern.

Original languageEnglish (US)
Pages (from-to)353-359
Number of pages7
JournalFoot and Ankle International
Volume35
Issue number4
DOIs
StatePublished - Jan 1 2014

Fingerprint

Ankle Fractures
Pronation
Supination
Ankle
Ligaments
Foot
Wounds and Injuries
Pyridinolcarbamate
Joints
Articular Range of Motion

All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Schottel, P. C., Berkes, M. B., Little, M. T. M., Garner, M., Fabricant, P. D., Lazaro, L. E., ... Lorich, D. G. (2014). Comparison of clinical outcome of pronation external rotation versus supination external rotation ankle fractures. Foot and Ankle International, 35(4), 353-359. https://doi.org/10.1177/1071100714520694
Schottel, Patrick C. ; Berkes, Marschall B. ; Little, Milton T.M. ; Garner, Matthew ; Fabricant, Peter D. ; Lazaro, Lionel E. ; Helfet, David L. ; Lorich, Dean G. / Comparison of clinical outcome of pronation external rotation versus supination external rotation ankle fractures. In: Foot and Ankle International. 2014 ; Vol. 35, No. 4. pp. 353-359.
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abstract = "Background: A pronation external rotation (PER) ankle fracture is a relatively uncommon injury. The purpose of this study was to examine the immediate and short-term clinical outcomes of operatively treated PER IV ankle fractures and compare them with a similarly treated cohort of supination external rotation IV (SER IV) fractures. Methods: 22 PER IV and 108 SER IV fractures were identified from a single surgeon's prospectively collected database from 2004 to 2010. All patients were treated with fracture fragment and ligament specific fixation during the same time period by the same surgeon. Postoperative radiographs and bilateral ankle computed tomography (CT) scans were reviewed for articular incongruity, syndesmotic malreduction, and loss of reduction. Clinical outcome measures, including the Foot and Ankle Outcome Score (FAOS) and ankle range of motion (ROM), were collected at latest follow-up visit. Results: There was no difference in the rate of wound complications, fracture nonunion, or loss of reduction between the PER IV and SER IV groups. There was no significant difference in the incidence of postoperative articular incongruity (19{\%} vs 8{\%}, P = .23); however, the PER IV cohort was found to have a significantly higher rate of syndesmotic malreduction (40{\%} vs 18{\%}, P = .04). No clinically or statistically significant differences were detected between the 2 groups in regard to all FAOS domains. Conclusion: In a cohort of operatively treated PER IV fractures, fracture fragment and ligament specific fixation resulted in good short-term outcomes that were comparable to those seen in similarly treated patients with an SER IV fracture pattern. However, a notably greater number of syndesmotic malreductions were noted in the PER IV cohort, and therefore heightened scrutiny is recommended in treating this particular injury pattern.",
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Schottel, PC, Berkes, MB, Little, MTM, Garner, M, Fabricant, PD, Lazaro, LE, Helfet, DL & Lorich, DG 2014, 'Comparison of clinical outcome of pronation external rotation versus supination external rotation ankle fractures', Foot and Ankle International, vol. 35, no. 4, pp. 353-359. https://doi.org/10.1177/1071100714520694

Comparison of clinical outcome of pronation external rotation versus supination external rotation ankle fractures. / Schottel, Patrick C.; Berkes, Marschall B.; Little, Milton T.M.; Garner, Matthew; Fabricant, Peter D.; Lazaro, Lionel E.; Helfet, David L.; Lorich, Dean G.

In: Foot and Ankle International, Vol. 35, No. 4, 01.01.2014, p. 353-359.

Research output: Contribution to journalArticle

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T1 - Comparison of clinical outcome of pronation external rotation versus supination external rotation ankle fractures

AU - Schottel, Patrick C.

AU - Berkes, Marschall B.

AU - Little, Milton T.M.

AU - Garner, Matthew

AU - Fabricant, Peter D.

AU - Lazaro, Lionel E.

AU - Helfet, David L.

AU - Lorich, Dean G.

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N2 - Background: A pronation external rotation (PER) ankle fracture is a relatively uncommon injury. The purpose of this study was to examine the immediate and short-term clinical outcomes of operatively treated PER IV ankle fractures and compare them with a similarly treated cohort of supination external rotation IV (SER IV) fractures. Methods: 22 PER IV and 108 SER IV fractures were identified from a single surgeon's prospectively collected database from 2004 to 2010. All patients were treated with fracture fragment and ligament specific fixation during the same time period by the same surgeon. Postoperative radiographs and bilateral ankle computed tomography (CT) scans were reviewed for articular incongruity, syndesmotic malreduction, and loss of reduction. Clinical outcome measures, including the Foot and Ankle Outcome Score (FAOS) and ankle range of motion (ROM), were collected at latest follow-up visit. Results: There was no difference in the rate of wound complications, fracture nonunion, or loss of reduction between the PER IV and SER IV groups. There was no significant difference in the incidence of postoperative articular incongruity (19% vs 8%, P = .23); however, the PER IV cohort was found to have a significantly higher rate of syndesmotic malreduction (40% vs 18%, P = .04). No clinically or statistically significant differences were detected between the 2 groups in regard to all FAOS domains. Conclusion: In a cohort of operatively treated PER IV fractures, fracture fragment and ligament specific fixation resulted in good short-term outcomes that were comparable to those seen in similarly treated patients with an SER IV fracture pattern. However, a notably greater number of syndesmotic malreductions were noted in the PER IV cohort, and therefore heightened scrutiny is recommended in treating this particular injury pattern.

AB - Background: A pronation external rotation (PER) ankle fracture is a relatively uncommon injury. The purpose of this study was to examine the immediate and short-term clinical outcomes of operatively treated PER IV ankle fractures and compare them with a similarly treated cohort of supination external rotation IV (SER IV) fractures. Methods: 22 PER IV and 108 SER IV fractures were identified from a single surgeon's prospectively collected database from 2004 to 2010. All patients were treated with fracture fragment and ligament specific fixation during the same time period by the same surgeon. Postoperative radiographs and bilateral ankle computed tomography (CT) scans were reviewed for articular incongruity, syndesmotic malreduction, and loss of reduction. Clinical outcome measures, including the Foot and Ankle Outcome Score (FAOS) and ankle range of motion (ROM), were collected at latest follow-up visit. Results: There was no difference in the rate of wound complications, fracture nonunion, or loss of reduction between the PER IV and SER IV groups. There was no significant difference in the incidence of postoperative articular incongruity (19% vs 8%, P = .23); however, the PER IV cohort was found to have a significantly higher rate of syndesmotic malreduction (40% vs 18%, P = .04). No clinically or statistically significant differences were detected between the 2 groups in regard to all FAOS domains. Conclusion: In a cohort of operatively treated PER IV fractures, fracture fragment and ligament specific fixation resulted in good short-term outcomes that were comparable to those seen in similarly treated patients with an SER IV fracture pattern. However, a notably greater number of syndesmotic malreductions were noted in the PER IV cohort, and therefore heightened scrutiny is recommended in treating this particular injury pattern.

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