Why it’s better to believe in a larger definition of the diametaphyseal junction zone in pediatric distal radius fractures - Summary - MDSpire

The Importance of an Expanded Understanding of the Diametaphyseal Junction Zone in Pediatric Distal Radius Fractures

  • By

  • Christoph von Schrottenberg

  • Susann Marie Beck

  • Philipp Schwerk

  • Guido Fitze

  • Jurek Schultz

  • July 20, 2026

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Objective:

To investigate whether fractures categorized as diaphyseal according to the AO-PCCF but considered to lie within the DMJZ as defined by an FFI between 1 and 2 can be stabilized with conventional ESIN technique and to compare outcomes with TEPIK fixation.

Approach:
  • Surgical Techniques: Comparison of outcomes between conventional ESIN and TEPIK fixation in treating DMRF+.
Key Findings:
  • Of 516 DMRF identified, 75 patients met inclusion criteria, with 11 DMRF+ included in the analysis.
  • ESIN reduced angulation in the lateral radiograph from 37° to 3° (p = 0.0032).
  • TEPIK reduced angulation in the lateral radiograph from 17° to 1° (p = 0.048).
  • One patient treated with ESIN developed a pseudarthrosis.
Interpretation:

The study provides insights into the effectiveness of ESIN and TEPIK in treating DMRF+ fractures, highlighting differences in radiographic outcomes.

Limitations:
  • Small sample size of 11 DMRF+ cases.
  • Retrospective nature may introduce bias.
  • Lack of randomization in surgical technique selection.
Conclusion:

The findings suggest that both ESIN and TEPIK can be effective in managing DMRF+, but further studies are needed to validate these results.

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