Scaphoid malunion

Peter C. Amadio, Thomas H. Berquist, Douglas K. Smith, Duane M. Ilstrup, William P. Cooney, Ronald L. Linscheid

Research output: Contribution to journalArticle

318 Scopus citations

Abstract

Forty-five patients with 46 scaphoid fractures were studied more than 6 months after union by clinical examination and trispiral tomography. Twenty had normal scaphoid alignment with lateral intrascaphoid angles <35 degrees; the rest had varying degrees of increased flexion angulation of the scaphoid, ranging from 36 degrees to 60 degrees. Increasing lateral scaphoid angulation, eventually resulting in a "humpback" deformity, was associated with progressively poor clinical and radiographic results. There were satisfactory clinical outcomes in 83% and posttraumatic arthritis in only 22% of those with normal scaphoid anatomy. Those with greater than 45 degrees of lateral intrascaphoid angulation present at the time of union had a satisfactory clinical outcome in 27% and posttraumatic arthritis in 54%. Union alone is an insufficient criterion for success in treating scaphoid fractures.

Original languageEnglish (US)
Pages (from-to)679-687
Number of pages9
JournalJournal of Hand Surgery
Volume14
Issue number4
DOIs
StatePublished - Jul 1989

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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    Amadio, P. C., Berquist, T. H., Smith, D. K., Ilstrup, D. M., Cooney, W. P., & Linscheid, R. L. (1989). Scaphoid malunion. Journal of Hand Surgery, 14(4), 679-687. https://doi.org/10.1016/0363-5023(89)90191-3