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Digital lengthening using the callotasis technique

W H Seitz1, A I Froimson

  • 1Department of Orthopedic Surgery, Mt Sinai Medical Center, Cleveland, OH 44106-4198, USA.

Orthopedics
|February 1, 1995
PubMed
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This study demonstrates successful single-stage digital lengthening for congenital and posttraumatic deficiencies using specialized devices. Patients achieved significant lengthening with minimal pain and maintained hand function throughout treatment.

Area of Science:

  • Orthopedic Surgery
  • Regenerative Medicine
  • Pediatric Orthopedics

Background:

  • Congenital and posttraumatic digital deficiencies present significant functional challenges.
  • Previous methods for digital lengthening may involve multiple stages or external supports.
  • The need for stable, single-stage solutions is critical for improving patient outcomes.

Purpose of the Study:

  • To evaluate the efficacy of a single-stage digital lengthening procedure using individual, half-frame devices.
  • To assess the degree of lengthening achieved and the need for adjunct procedures.
  • To determine the impact of the lengthening process on patient pain and hand function.

Main Methods:

  • A series of 14 digital lengthening procedures were performed using custom, half-frame devices.

Related Experiment Videos

  • Lengthening was achieved at a slow rate (0.25 mm, four times daily) to minimize discomfort.
  • Individual digital stability was maintained without external fixation.

    • Main Results:

    • All 14 cases achieved the projected lengthening goals, ranging from 2.0 cm to 3.5 cm per digit.
    • Bone grafting was only required in one instance.
    • Patients reported minimal pain and were able to use their hands during the lengthening period.
    • Continued growth was observed in cases with open physeal plates post-procedure.

    Conclusions:

    • Individual, half-frame digital lengthening devices provide stable, effective single-stage correction for digital deficiencies.
    • A slow lengthening protocol minimizes pain and allows for functional hand use during treatment.
    • This technique shows promise for achieving significant digital growth, even with open physes.