| Autor: |
Я. О., Головіна, Р. В., Малик, О. Є., Вирва |
| Zdroj: |
Travma; 2022, Vol. 23 Issue 3, p36-42, 7p |
| Abstrakt: |
Background. Bioreconstruction of long bones occupies an important place among all surgical techniques aimed at replacing post-resection defects of long bones in case of a tumor. The combination of segmental bone alloplasty and metal structures fixing the implant allows for the early rehabilitation of a patient and restoring the function of the affected limb. Various types of osteotomies are used to obtain stable fixation that provides conditions for effective osteoreparation between the allograft and the recipient’s bone. Transverse osteotomy is the most common, but its use causes complications such as disruption of osteoreparation processes in the area of contact between the alloimplant and the recipient’s bone. The step-cut osteotomy has a number of advantages over other types, but it is difficult to use. The purpose of the study is to develop a universal tool for performing stepcut osteotomy in case of alloplasty of segmental defects of long bones. Materials and methods. A tool has been developed — a universal template for performing step-cut osteotomy the use of which allows you to make identical “steps” in the bone of the recipient and the bone segmental alloimplant and to compare them most closely. Approbation of the developed tool was carried out. Results. These methods were used in 17 patients with bone tumors. The median period of followup was 16.2 [9.2; 50.7] months. The average score on the Musculoske-letal Tumor Society (MSTS) system for all patients (n = 17) was 22.3 ± 2.8 (19–27) points. The gender distribution slightly influenced the functional outcome of treatment: in men (n = 7), MSTS score was 23.1 ± 2.3 points, in women (n = 10) — 21.7 ± 3.1 points. In patients with osteosarcoma (n = 7), the functional results were assessed as 21.6 ± 2.8 points (from 19 to 27). The developed universal tool can be used in different situations (long bones of different sizes, “steps” of different size for step-cut osteotomy). In our opinion, this has a more pronounced economic effect. Clinical examples of using segmental bone alloimplants in case of post-resection defects of long bones are presented. Conclusions. The success of using segmental bone alloplasty depends on many factors, mainly on correctly selected indications for the use of this treatment method. The step-cut osteotomy allows to obtain a stable and dense fixation between the bones and the best conditions for osteoreparation in case of bone alloplasty. The development and application of a universal tool for step-cut osteotomy allows performing the most accurate bone resection and reduce the time of surgical intervention, which can affect the improvement of treatment outcomes in cancer patients. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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