Abstract
There are few good surgical options that allow for continued spinal growth in patients with early-onset scoliosis. The "Shilla" is a growth guidance system that does not require repeated surgical lengthenings. The Shilla system guides growth at the ends of dual rods with the apex of the curve corrected, fused, and fixed to the rods. The growth occurs through the extraperiosteally implanted pedicle screws that slide along the rods at either end of the construct. We implanted 11 2-month-old immature goats with the dual rod system and euthanized all 11 goats 6 months postoperatively. We evaluated plain radiographs, regular computed tomography, microcomputed tomography, physical and histologic examinations, and a microscopic wear analysis. All of the goat spines grew with the implants in place; growth occurred in both the thoracic and lumbar ends of the rods for a total average of 48 mm. None of the implants failed, although we observed minor wear at the rod/screw interface. Growth guidance with the Shilla rod system allowed for continued growth in this goat model.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 705-710 |
| Number of pages | 6 |
| Journal | Clinical Orthopaedics and Related Research |
| Volume | 468 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2010 |
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ASJC Scopus subject areas
- Orthopedics and Sports Medicine
Cite this
Shilla growing rods in a caprine animal model : A pilot study. / McCarthy, Richard E.; Sucato, Daniel; Turner, Joseph L.; Zhang, Hong; Henson, Meleah A W; McCarthy, Kathryn.
In: Clinical Orthopaedics and Related Research, Vol. 468, No. 3, 03.2010, p. 705-710.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Shilla growing rods in a caprine animal model
T2 - A pilot study
AU - McCarthy, Richard E.
AU - Sucato, Daniel
AU - Turner, Joseph L.
AU - Zhang, Hong
AU - Henson, Meleah A W
AU - McCarthy, Kathryn
PY - 2010/3
Y1 - 2010/3
N2 - There are few good surgical options that allow for continued spinal growth in patients with early-onset scoliosis. The "Shilla" is a growth guidance system that does not require repeated surgical lengthenings. The Shilla system guides growth at the ends of dual rods with the apex of the curve corrected, fused, and fixed to the rods. The growth occurs through the extraperiosteally implanted pedicle screws that slide along the rods at either end of the construct. We implanted 11 2-month-old immature goats with the dual rod system and euthanized all 11 goats 6 months postoperatively. We evaluated plain radiographs, regular computed tomography, microcomputed tomography, physical and histologic examinations, and a microscopic wear analysis. All of the goat spines grew with the implants in place; growth occurred in both the thoracic and lumbar ends of the rods for a total average of 48 mm. None of the implants failed, although we observed minor wear at the rod/screw interface. Growth guidance with the Shilla rod system allowed for continued growth in this goat model.
AB - There are few good surgical options that allow for continued spinal growth in patients with early-onset scoliosis. The "Shilla" is a growth guidance system that does not require repeated surgical lengthenings. The Shilla system guides growth at the ends of dual rods with the apex of the curve corrected, fused, and fixed to the rods. The growth occurs through the extraperiosteally implanted pedicle screws that slide along the rods at either end of the construct. We implanted 11 2-month-old immature goats with the dual rod system and euthanized all 11 goats 6 months postoperatively. We evaluated plain radiographs, regular computed tomography, microcomputed tomography, physical and histologic examinations, and a microscopic wear analysis. All of the goat spines grew with the implants in place; growth occurred in both the thoracic and lumbar ends of the rods for a total average of 48 mm. None of the implants failed, although we observed minor wear at the rod/screw interface. Growth guidance with the Shilla rod system allowed for continued growth in this goat model.
UR - http://www.scopus.com/inward/record.url?scp=77449089009&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77449089009&partnerID=8YFLogxK
U2 - 10.1007/s11999-009-1028-y
DO - 10.1007/s11999-009-1028-y
M3 - Article
C2 - 19693636
AN - SCOPUS:77449089009
VL - 468
SP - 705
EP - 710
JO - Clinical Orthopaedics and Related Research
JF - Clinical Orthopaedics and Related Research
SN - 0009-921X
IS - 3
ER -