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Related Experiment Video

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Treatment with Locking Intramedullary Nailing for Intertrochanteric Fracture of the Femur Utilizing a New Awl with a Distal Positioner
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Pisiform malalignment associated with distal radius fractures.

Takafumi Tajima1, Yukichi Zenke1, Yoshiaki Yamanaka1

  • 1Department of Orthopaedic Surgery, University of Occupational and Environmental Health, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.

Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association
|March 6, 2018
PubMed
Summary

Pisiform malalignment complicates nearly 30% of distal radius fractures, particularly those with dorsal displacement. This condition, affecting the pisotriquetral joint, requires careful assessment and management following wrist injuries.

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Area of Science:

  • Orthopedic Surgery
  • Radiology
  • Traumatology

Background:

  • Distal radius fractures are commonly associated with carpal bone injuries.
  • Pisiform malalignment, a specific type of pisotriquetral joint incongruity, is infrequently reported with distal radius fractures.

Purpose of the Study:

  • To determine the frequency and characteristics of pisiform malalignment in patients with distal radius fractures.
  • To investigate the relationship between pisiform malalignment and distal radius fracture patterns.

Main Methods:

  • Retrospective review of 152 surgically treated distal radius fractures.
  • Preoperative computed tomography (CT) assessment of the pisotriquetral joint for malalignment (wide, non-parallel, or overriding types).
  • Correlation of malalignment with fracture displacement (dorsal vs. volar) and intra-articular extension.

Main Results:

  • Pisiform malalignment was identified in 29% of distal radius fractures (48/152 cases).
  • Dorsal displacement of distal radius fractures was significantly associated with a higher incidence of pisiform malalignment.
  • The non-parallel type of malalignment showed the lowest reduction rate postoperatively.

Conclusions:

  • Pisiform malalignment is a notable complication of distal radius fractures, occurring in nearly one-third of cases.
  • Dorsal displacement is a key indicator for potential pisiform malalignment in distal radius fractures.