Radiomorphological Manifestations of Femoral and Tibial Cortical Bones at Different Stages of Limb Lengthening.

Background: There has been a lot of research done on Ilizarov's limb lengthening; however, very few publications focus on the quantitative assessment of the distractional bone regeneration in tibial and femur lengthening. Data regarding quality of the bone after lengthening are needed to consider the time of frame removal and develop a rehabilitation program.

Materials And Methods: Computed tomography (CT) assessment of a parent bone was performed on 136 patients with limb length discrepancy and bone deformity of various etiologies before and after lengthening.

Detecting reasons for recurrent deformity in treatment of patients with vitamin D-resistant rickets using diagnostic imaging.

Purpose: To assess age related manifestations of the femur and tibia in patients with vitamin D-resistant rickets (VDR) and explore causes for recurrent deformity using imaging modalities.

Methods: Computed tomography (CT), magnetic resonance imaging (MRI) and dual energy X-ray densitometry (DEXA) were used to assess conditions of long bones of lower limbs in patients with vitamin D-resistant rickets aged from 4 years to 30 years preoperatively and after limb lengthening.

Results: Age related MRI findings showed specific structure of the femur and tibia in patients with VDR preoperatively and after operative treatment.

Easy method to simplify "freehand" subaxial cervical pedicle screw insertion.

Study Design: Technical note.

Objectives: The objective of this study is to check out safety and rationality of standardized and fast tricks to select trajectory of subaxial cervical pedicle screw (SCPS) insertion, based on simple angles to bony landmarks.

Materials And Methods: Stage 1 - Computed tomography (CT)-morphometric analysis of C3-C7 vertebrae of ten patients with cervical degenerative diseases.