Abstract
Objectives: This study aims to compare mechanical stability of osteosynthesis (plate and screw fixation) alone versus the same method supplemented with hip arthroplasty (hybrid solution) for double column fractures in elderly. Patients and methods: Mechanical investigations were performed on an advanced finite element pelvis model developed for double column fractures. The following simulated implant combinations were analyzed: modular acetabular basket with a ring with polyaxial screws and U-plate; plates with polyaxial screws placed on the medialhorizontal (linea terminalis) and quadrilateral bone surfaces; modular acetabular cup with U-plates; and polyaxial screws in sizes optimized based on a finite element model (FEM). Using the models, the possible shifts in peak load positions arising in different movement patterns caused by load and tension and implant deformation were measured. Results: Hybrid systems resulted in minimal deformation of the implants already available on the market. We observed less possible shifts and greater stability in the acetabular fracture zones, compared to conventional osteosynthesis alone. Optimization with available and compatible implant sizes led to a further significant increase in stability. Conclusion: Hybrid method combining osteosynthesis and prosthesis implantation provide more stability in biomechanical models in the treatment of double column fractures in elderly.
| Original language | English |
|---|---|
| Pages (from-to) | 106-111 |
| Number of pages | 6 |
| Journal | Eklem Hastaliklari ve Cerrahisi |
| Volume | 30 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jan 1 2019 |
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Keywords
- Acetabular fracture
- Acetabulum
- Finite element model
- Pelvic trauma
- Plate osteosynthesis
- Total hip replacement
ASJC Scopus subject areas
- Surgery
- Orthopedics and Sports Medicine
- Rehabilitation
Cite this
Hybrid solution combining osteosynthesis and endoprosthesis for double column acetabular fractures in the elderly provide more stability with finite element model. / Kocsis, András; Váradi, K.; Szalai, Gábor; Kovács, Tamás; Bodzay, Tamás.
In: Eklem Hastaliklari ve Cerrahisi, Vol. 30, No. 2, 01.01.2019, p. 106-111.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hybrid solution combining osteosynthesis and endoprosthesis for double column acetabular fractures in the elderly provide more stability with finite element model
AU - Kocsis, András
AU - Váradi, K.
AU - Szalai, Gábor
AU - Kovács, Tamás
AU - Bodzay, Tamás
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Objectives: This study aims to compare mechanical stability of osteosynthesis (plate and screw fixation) alone versus the same method supplemented with hip arthroplasty (hybrid solution) for double column fractures in elderly. Patients and methods: Mechanical investigations were performed on an advanced finite element pelvis model developed for double column fractures. The following simulated implant combinations were analyzed: modular acetabular basket with a ring with polyaxial screws and U-plate; plates with polyaxial screws placed on the medialhorizontal (linea terminalis) and quadrilateral bone surfaces; modular acetabular cup with U-plates; and polyaxial screws in sizes optimized based on a finite element model (FEM). Using the models, the possible shifts in peak load positions arising in different movement patterns caused by load and tension and implant deformation were measured. Results: Hybrid systems resulted in minimal deformation of the implants already available on the market. We observed less possible shifts and greater stability in the acetabular fracture zones, compared to conventional osteosynthesis alone. Optimization with available and compatible implant sizes led to a further significant increase in stability. Conclusion: Hybrid method combining osteosynthesis and prosthesis implantation provide more stability in biomechanical models in the treatment of double column fractures in elderly.
AB - Objectives: This study aims to compare mechanical stability of osteosynthesis (plate and screw fixation) alone versus the same method supplemented with hip arthroplasty (hybrid solution) for double column fractures in elderly. Patients and methods: Mechanical investigations were performed on an advanced finite element pelvis model developed for double column fractures. The following simulated implant combinations were analyzed: modular acetabular basket with a ring with polyaxial screws and U-plate; plates with polyaxial screws placed on the medialhorizontal (linea terminalis) and quadrilateral bone surfaces; modular acetabular cup with U-plates; and polyaxial screws in sizes optimized based on a finite element model (FEM). Using the models, the possible shifts in peak load positions arising in different movement patterns caused by load and tension and implant deformation were measured. Results: Hybrid systems resulted in minimal deformation of the implants already available on the market. We observed less possible shifts and greater stability in the acetabular fracture zones, compared to conventional osteosynthesis alone. Optimization with available and compatible implant sizes led to a further significant increase in stability. Conclusion: Hybrid method combining osteosynthesis and prosthesis implantation provide more stability in biomechanical models in the treatment of double column fractures in elderly.
KW - Acetabular fracture
KW - Acetabulum
KW - Finite element model
KW - Pelvic trauma
KW - Plate osteosynthesis
KW - Total hip replacement
UR - http://www.scopus.com/inward/record.url?scp=85069572852&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85069572852&partnerID=8YFLogxK
U2 - 10.5606/ehc.2019.66592
DO - 10.5606/ehc.2019.66592
M3 - Article
C2 - 31291857
AN - SCOPUS:85069572852
VL - 30
SP - 106
EP - 111
JO - Eklem Hastaliklari ve Cerrahisi
JF - Eklem Hastaliklari ve Cerrahisi
SN - 1305-8282
IS - 2
ER -