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Biomedical subjects

Svetlana Ilizarov

Publications and source records attributed to Svetlana Ilizarov.

4 recordsLinked to original sources
PubMed2007

Lengthening of a free fibular graft after sarcoma resection of the humerus.

We report a patient who had resection of the humerus for osteosarcoma, initial reconstruction with a free fibular graft of the humerus, and subsequent lengthening of the graft. A 9-cm (100% of free fibula length) lengthening was achieved to equalize the humerus length. A complication of regenerate fracture was treated successfully with plating. Four years after the initial surgery for lengthening, the patient presented with a new radial neuropathy.

Adolescent↗
PubMed2006

Simultaneous treatment of tibial bone and soft-tissue defects with the Ilizarov method.

OBJECTIVES: To evaluate the potential for limb salvage using the Ilizarov method to simultaneously treat bone and soft-tissue defects of the leg without flap coverage. DESIGN: Retrospective study. SETTING: Level I trauma centers at 4 academic university medical centers. PATIENTS/PARTICIPANTS: Twenty-five patients with bone and soft-tissue defects associated with tibial fractures and nonunions. The average soft-tissue and bone defect after debridement was 10.1 (range, 2-25) cm and 6 (range, 2-14) cm respectively. Patients were not candidates for flap coverage and the treatment was a preamputation limb salvage undertaking in all cases. INTERVENTION: Ilizarov and Taylor Spatial Frames used to gradually close the bone and soft-tissue defects simultaneously by using monofocal shortening or bifocal or trifocal bone transport. MAIN OUTCOME MEASUREMENTS: Bone union, soft-tissue closure, resolution or prevention of infection, restoration of leg length equality, alignment, limb salvage. RESULTS: The average time of compression and distraction was 19.7 (range, 5-70) weeks, and time to soft-tissue closure was 14.7 (range, 3-41) weeks. Bony union occurred in 24 patients (96%). The average time in the frame was 43.2 (range, 10-82) weeks. Lengthening at another site was performed in 15 patients. The average amount of bone lengthening was 5.6 (range, 2-11) cm. Final leg length discrepancy (LLD) averaged 1.2 (range, 0-5) cm. Use of the trifocal approach resulted in less time in the frame for treatment of large bone and soft-tissue defects. There were no recurrences of osteomyelitis at the nonunion site. All wounds were closed. There were no amputations. All limbs were salvaged. CONCLUSIONS: The Ilizarov method can be successfully used to reconstruct the leg with tibial bone loss and an accompanying soft-tissue defect. This limb salvage method can be used in patients who are not believed to be candidates for flap coverage. One also may consider using this technique to avoid the need for a flap. Gradual closure of the defect is accomplished resulting in bony union and soft-tissue closure. Lengthening can be performed at another site. A trifocal approach should be considered for large defects (>6 cm). Advances in technique and frame design should help prevent residual deformity.

Debridement↗
PubMed2005

Knee arthrodesis with simultaneous lengthening using the Ilizarov method.

OBJECTIVE: To determine whether knee arthrodesis with simultaneous lengthening using the Ilizarov method for a nonreconstructable knee joint with bone loss and infection is a successful salvage procedure. DESIGN: Retrospective review of patients. SETTING: University hospital-based orthopaedic practice. PATIENTS: From 1999 to 2001, 4 consecutive patients with a nonreconstructable knee joint, bone loss, and infection after trauma underwent knee arthrodesis with simultaneous lengthening. INTERVENTION: Arthrodesis of the knee with simultaneous limb lengthening through an osteotomy of the tibia and/or femur and the use of an Ilizarov frame. External bone stimulation was used at the knee arthrodesis site and the lengthening sites. Application of this device began during the early distraction phase and continued until frame removal. MAIN OUTCOME MEASURES: Bony union at the arthrodesis and bone lengthening sites, alignment of the lower extremity, limb length discrepancy, infection, pain, and outcome scales (SF-36 scores and American Academy of Orthopaedic Surgeons lower limb modules). RESULTS: Bony union of the knee arthrodesis and lengthening sites and good alignment were achieved in all 4 patients. Mean amount of lengthening was 5.4 cm (range 2.5-11.5 cm). Average time in frame was 11 months (range 6-17 months). Limb length discrepancy after treatment averaged 1.8 cm (range 0.6-3.7 cm). Mean duration of follow-up after frame removal was 35 months (range 28-48 months). At follow-up, infection had not recurred, pain was not present, and assistive devices were not needed for ambulation. Average SF-36 scores improved in all 8 categories, and the average American Academy of Orthopaedic Surgeons lower limb modules improved from a mean of 33 (range 11-37) to a mean of 68 (range 51-76). CONCLUSION: Knee arthrodesis with simultaneous lengthening can be performed successfully using the Ilizarov method. It enables surgeons to optimize limb length during knee arthrodesis. The use of external fixation and the avoidance of internal implants may be advantageous in the presence of or history of infection. The Ilizarov frame provides stability that allows weight bearing during treatment.

Adult↗