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Related Experiment Videos

[Interlocking nailing of the humerus]

W Ruf1, E Pauly

  • 1Abteilung für Unfall-, Hand- und Wiederherstellungschirurgie, Klinikum Remscheid GmbH, Krankenhaus Lennep.

Der Unfallchirurg
|June 1, 1993
PubMed
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The Seidel intramedullary interlocking nail for humeral fractures showed a high complication rate, with only half of the cases having good outcomes. Its use is now limited to pathological shaft fractures.

Area of Science:

  • Orthopedic surgery
  • Traumatology
  • Biomedical engineering

Background:

  • Humeral shaft fractures are common injuries.
  • Intramedullary nailing is a standard surgical treatment.
  • The Seidel interlocking nail offers a theoretical advantage for humerus fixation.

Purpose of the Study:

  • To evaluate the clinical outcomes and complication rates of the Seidel intramedullary interlocking nail for humeral shaft fractures.
  • To identify device-specific complications and reasons for failure.
  • To determine the suitability of this nail for routine fracture treatment.

Main Methods:

  • Retrospective analysis of 42 humeral fractures treated over 3 years.
  • Nineteen fractures were treated with the Seidel intramedullary interlocking nail.

Related Experiment Videos

  • Fracture classification using the AO system.
  • Documentation of intraoperative and postoperative complications, hospital stay, and functional results.

    • Main Results:

    • 19 fractures treated with the Seidel nail; most were AO type A.
    • Two pathological fractures due to bone metastases were also treated.
    • Mean hospital stay was 24 days.
    • Complications included two infections and seven system-specific issues.
    • Reasons for complications included nail-medullary canal discrepancies, intraoperative fractures, and subacromial impingement.
    • Good functional results were achieved in approximately 50% of cases.

    Conclusions:

    • The Seidel intramedullary interlocking nail demonstrated a significant complication rate.
    • Device-specific issues, including sizing and nail end prominence, contributed to failures.
    • The initial optimism regarding the nail's theoretical concept was not met in practice.
    • Current application of the interlocking humerus nail is restricted to pathological shaft fractures.