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

The Turner Institute for Children’s Orthopedics, Saint-Petersburg

Author for correspondence.
Email: edgar.bukharev@gmail.com

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

The Turner Institute for Children’s Orthopedics, Saint-Petersburg

Email: edgar.bukharev@gmail.com

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

The Turner Institute for Children’s Orthopedics, Saint-Petersburg

Email: edgar.bukharev@gmail.com

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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