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[Partial femur replacement: implanted without cement].

G Felmet1, U de Nicola, H W Springorum

  • 1Orthopädische Universitätsklinik Würzburg.

Zeitschrift Fur Orthopadie Und Ihre Grenzgebiete
|July 1, 1988
PubMed
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Cementless subtotal femoral replacements utilizing bony ingrowth surfaces show promising results for hip region malignancies, pertrochanteric fractures, and hip prosthesis loosening. These implants offer a biomechanically advantageous situation with no observed patient complaints over a two-year follow-up.

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Reconstructive Surgery

Background:

  • Subtotal femur replacement is indicated for hip region malignancies, pertrochanteric fractures, and hip prosthesis loosening with large bony defects.
  • Conventional implants are typically bone-cemented.
  • Novel cementless designs offer potential advantages.

Observation:

  • Three cases of cementless subtotal femoral replacements with a bony ingrowth surface were analyzed.
  • The implant surface design mimics the structure of spongious bone.
  • The mean observation period was over two years.

Findings:

  • Cementless subtotal femoral replacements demonstrated successful osseointegration.
  • The bony ingrowth surface facilitated a more advantageous biomechanical situation.

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  • No patient complaints were reported during the observation period.

    • Implications:

    • Cementless subtotal femoral replacement is a viable alternative to cemented implants.
    • Bony ingrowth surfaces enhance implant stability and biomechanical integration.
    • This approach may improve outcomes for patients requiring extensive femoral reconstruction.