Сomparative study of computer-assistance ortho-suv external fixation and conventional hybrid external fixation in adolescent with genu recurvatum

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Abstract


The aim of the study: to compare the results with the use of computer-assisted Ortho-SUV ExFix and conventional hybrid external fixator.

Materials and methods.

A retrospective analysis of examination and treatment of 13 patients aged 13 to 17 years with genu recurvatum of different etiology in combination with crus shortening. Ortho-SUV Frame was used in 5 patient, conventional hybrid external fixation was used in 5 patients.

Results.

Average time correction of deformity using Ortho-SUV ExFix (group A) was 23 ± 3,8 days, and using hybrid external fixator - 31 ± 4,5 days (group B). Fixation index (FI) for group A was 49,8 days/cm and 72,7 days/cm for group B. Posterior proximal tibia angle (aPPTA) reference value is 81° (77-84°). aPPTA after the final correction was 81,8 ± 1,6° for group A and 85,2 ± 4,1° for group B.

Conclusions.

Ortho-SUV frame allow for correction time reduction of 8 days and FI decrease of 22,9 days/cm. Genu recurvatum correction accuracy by Ortho-SUV frame is superior to the correction accuracy when using a hybrid wire-rod device.


Edgar Valentinovich Bukharev

Author for correspondence.
edgar.bukharev@gmail.com
The Turner Institute for Children’s Orthopedics, Saint-Petersburg
Russian Federation

MD, PhD, research associate of the department of bone pathology. The Turner Scientific and Research Institute for Children’s Orthopedics.

Aleksander Pavlovich Pozdeev

edgar.bukharev@gmail.com
The Turner Institute for Children’s Orthopedics, Saint-Petersburg
Russian Federation

MD, PhD, professor, chief research associate of the department of bone pathology. The Turner Scientific and Research Institute for Children’s Orthopedics

Timur Faizovich Zubairov

edgar.bukharev@gmail.com
The Turner Institute for Children’s Orthopedics, Saint-Petersburg
Russian Federation

MD, PhD, research associate of the department of bone pathology. The Turner Scientific and Research Institute for Children’s Orthopedics

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Copyright (c) 2015 Bukharev E.V., Pozdeev A.P., Zubairov T.F.

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