J Korean Orthop Assoc.  2014 Apr;49(2):172-176. 10.4055/jkoa.2014.49.2.172.

Mechanical Failure in Distraction Osteogenesis Using the Intramedullary Skeletal Kinetic Distractor

Affiliations
  • 1Department of Orthopedic Surgery, CHA Bundang Medical Center, Seongnam, Korea. orthopaedee@naver.com
  • 2Department of Orthopedic Surgery, CHA Gumi Medical Center, CHA University, Gumi, Korea.

Abstract

In an effort to overcome the drawbacks of distraction osteogenesis using the Ilizarov external fixator, intramedullary lengthening devices have been developed and applied for long bone distraction osteogenesis. Several successful cases have been reported, leading to the next generation of distraction osteogenesis. However, intramedullary lengthening devices have their own problems, such as device failure, difficulty of control of the lengthening degree. The authors report on a case of device failure during distraction osteogenesis using ISKD(R) (Orthofix Inc.) in the distraction phase, and the strategy that involved switching to a lengthening over nail system, which uses the Ilizarov external fixator, in order to obtain the target length.

Keyword

equipment failure analysis; leg length inequality/surgery; distraction osteogenesis/instrumentation

MeSH Terms

Equipment Failure
Equipment Failure Analysis
External Fixators
Osteogenesis, Distraction*

Figure

  • Figure 1 Initial operation, ISKD® (Orthofix Inc.) inserted into both tibia.

  • Figure 2 Interrupted lengthening of the right tibia.

  • Figure 3 Bony union of fibular.

  • Figure 4 Lengthening over nail with using ISKD® (Orthofix Inc.) as an intramedullary nail.

  • Figure 5 Termination of lengthening followed by removal of the external fixator.

  • Figure 6 Key-ring collar breakage in ISKD® (Orthofix Inc.). Arrow: broken key-ring collar.


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