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Proximal scaphoid costo-osteochondral replacement arthroplasty

M J Sandow1

  • 1Department of Orthopaedics and Trauma, Royal Adelaide Hospital and Wakefield Orthopaedic Clinic, South Australia, Australia.

Journal of Hand Surgery (Edinburgh, Scotland)
|June 2, 1998
PubMed
Summary

Costo-osteochondral autografts effectively treat scaphoid bone defects, restoring wrist function and motion. This surgical technique improved grip strength and reduced pain in patients with scaphoid deficiencies.

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Area of Science:

  • Orthopedic Surgery
  • Hand Surgery
  • Regenerative Medicine

Background:

  • Scaphoid bone deficiencies, often from fracture or necrosis, impair wrist function.
  • Current treatments may have significant complications.
  • Restoring the proximal pole's mechanical integrity is crucial for wrist stability.

Purpose of the Study:

  • To evaluate the efficacy of costo-osteochondral autografts for treating proximal scaphoid pole deficiency.
  • To assess functional outcomes, pain reduction, and carpal alignment post-procedure.

Main Methods:

  • Prospective study of 22 patients undergoing costo-osteochondral replacement arthroplasty.
  • Utilized autografts from rib bone and cartilage.
  • Median follow-up of 24 months (range, 12-72 months).

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Main Results:

  • All patients demonstrated improved wrist function, including increased motion, grip strength, and reduced pain.
  • Average modified Green and O'Brien Wrist Function Score improved from 53 to 80.
  • Most patients improved from fair/poor to good/excellent functional grades.
  • No graft non-unions or significant complications observed; carpal alignment was maintained.

Conclusions:

  • Costo-osteochondral autografts provide a satisfactory solution for proximal scaphoid pole reconstruction.
  • This technique restores mechanical integrity and maintains wrist motion effectively.
  • It offers a viable alternative with fewer complications than other arthroplasty methods.