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Use of Human Perivascular Stem Cells for Bone Regeneration

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Plate-Assisted Bone Segment Transport Using an Intramedullary Implant for Treatment of Large Segment Bone Loss in

Kacy J Peek¹, Joshua Schwartz, Elizabeth K Driskill

¹University of Virginia Department of Orthopaedics, Charlottesville, Virginia.

JBJS Case Connector

|September 11, 2025

Abstract

Case:

We present the case of a 42-year-old woman with an infected distal humeral shaft nonunion treated with plate-assisted bone segment transport (PABST) using a magnetic lengthening intramedullary implant. At eight months postoperatively, the patient had consolidation of distraction osteogenesis and transport docking sites, equal humeral length, and ability to perform activities of daily living.

Conclusion:

We demonstrate the successful treatment of humeral shaft nonunion using PABST. To our knowledge, this is the first documented case using this technique to treat a large bone segment defect in the humerus.

Keywords:

Bone transport distal humerus fracture nonunion infected nonunion long segment bone loss

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