Biomechanical comparison of acetabular fracture fixation with stand-alone THA or in combination with plating.
Eur J Trauma Emerg Surg
; 48(4): 3185-3192, 2022 Aug.
Article
em En
| MEDLINE
| ID: mdl-35037075
ABSTRACT
PURPOSE:
A common surgical treatment in anterior column acetabular fractures with preexisting osteoarthritis is THA, which is commonly combined with plate osteosynthesis. Implantation of a solitary revision cup cranially fixed to the os ilium is less common. The purpose of this study was to compare the stabilization of anterior column acetabular fractures fixed with a cranial socket revision cup with flange and iliac peg or with a suprapectineal plate osteosynthesis combined with an additional revision cup.METHODS:
In 20 human hemipelves, an anterior column fracture was stabilized by either a cranial socket revision cup with integrated flange (CF = Cup with Flange) or by a suprapectineal plate combined with a revision cup (CP = Cup and Plate). Each specimen was loaded under a stepwise increasing dynamic load protocol. Initial construct stiffness, interfragmentary movements along the fracture line, as well as femoral head movement in relation to the acetabulum were analyzed.RESULTS:
Both groups showed comparable initial construct stiffness (CP 3180 ± 1162 N/mm and CF 3754 ± 668 N/mm; p = 0.158). At an applied load of 1400 N, interfragmentary movements at the acetabular (p = 0.139) and the supraacetabular region (p = 0.051) revealed comparable displacement for both groups and remained below 1 mm. Femoral head movement in relation to the acetabulum also remained below 1 mm for both test groups (p = 0.260).CONCLUSION:
From a biomechanical point of view, both surgical approaches showed comparable fracture reduction in terms of initial construct stiffness and interfragmentary movement. The potential benefit of the less-invasive cranial socket revision cup has to be further investigated in clinical studies.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fraturas da Coluna Vertebral
/
Artroplastia de Quadril
/
Fraturas Ósseas
/
Fraturas do Quadril
Tipo de estudo:
Guideline
Limite:
Humans
Idioma:
En
Revista:
Eur J Trauma Emerg Surg
Ano de publicação:
2022
Tipo de documento:
Article