The use of a ti-ni shape memory alloy ring bone fixator during the retrograde nailing of supracondylar femoral fractures.

Knee Surgery & Related Research
Hyuk-Soo HanSeung-Baik Kang

Abstract

To identify the effects of using a Ti-Ni shape memory alloy ring shaped bone fixator (SMA-rBF) during the retrograde nailing of supracondylar femoral fractures. The authors reviewed 25 patients with a supracondylar femoral fracture treated by retrograde intramedullary nailing with or without SMA-rBF (group S, 12/25; group N, 13/25). Radiological measurements of angular deformity were performed and functional assessments were made using the Sanders grading system. All fractures healed after an average of 12.2 weeks (range, 9-15 weeks) in group N and after 11.6 weeks (range, 10-13 weeks) in group S (p=0.351). The mean angle of coronal angular deformity was valgus 0.8° (range, varus 2.3°-valgus 4.5°) in group N and valgus 0.7° (range, varus 1.0°-valgus 2.4°) in group S (p=0.892). The mean angle of sagittal angular deformity was 1.0° in extension (range, flexion 3.2°-extension 3.1°) in group N and 0° (range, flexion 2.1°-extension 1.2°) in group S (p=0.022). However, functional grading evaluations revealed no differences between the two groups. When reduction of a distal femoral fracture with retrograde nailing was difficult additional mini-open reduction and fixation with a ring shaped SMA did not delay or prevent bony union and r...Continue Reading

References

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Citations

May 27, 2015·Archives of Orthopaedic and Trauma Surgery·Wei HaoXin Wang
Aug 14, 2015·The Cochrane Database of Systematic Reviews·Xavier L GriffinJohn McArthur

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Methods Mentioned

BETA
dissection
SMAs
SMA

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