The features of canine m. psoas minor histogenesis in the period of active growth during modeling the lumbar spine scoliosis
Objective. To identify the features of m. psoas minor histogenesis in growing dogs under conditions of the development of spinal scoliotic deformity. Material and Methods. Experiments were performed on 16 four-month-old mongrel dogs, males and females. In animals of Se- ries I, the deformity was...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Ministry of Health of Russian Federation, Federal State Budgetary Institution "Novosibirsk Research Institute of Traumatology and Orthopaedics n.a. Ya.L. Tsivyan"
2016-09-01
|
| Series: | Хирургия позвоночника |
| Subjects: | |
| Online Access: | https://www.spinesurgery.ru/jour/article/view/229/1254 |
| Summary: | Objective. To identify the features of m. psoas minor histogenesis in growing dogs under conditions of the development of
spinal scoliotic deformity.
Material and Methods. Experiments were performed on 16 four-month-old mongrel dogs, males and females. In animals of Se-
ries I, the deformity was created by gangliotomy at five lumbar motion segments (L2–L6), in animals of Series II – by fixation
of adjacent L3–L6 vertebral bodies with nickel titanium staples possessing thermochemical shape memory effect, and in animals
of Series III – by implantation of titanium plates into the subchondral zone of vertebral growth plates, together with the staples.
The control series included intact age-matched dogs. The X-ray examination of animals of Series I–III was performed in dorso-
ventral and lateral views at days 14, 30, 60, 90, and 180 after surgery. Paraffin and semi-thin sections of m. psoas minor from con-
cave and convex sides of the lumbar scoliotic deformity zone were studied using light microscopy in 3 and 6 months after surgery.
Results. Standard signs of degenerative-dystrophic changes and reparation by restitution/substitution type characterize
the histogenesis of m. psoas minor. The most marked destructive changes in the muscles on both sides of the deformity re-
tained in the long-term only in animals of Series III.
Conclusions. The study results can be used for evaluating the adaptation and plasticity potential of paravertebral muscles,
as well as for developing models of the spine scoliotic deformity. |
|---|---|
| ISSN: | 1810-8997 2313-1497 |