The biomechanical efficacy of an oscillating K-wire driver.
Ann Plast Surg
; 29(4): 289-92, 1992 Oct.
Article
en En
| MEDLINE
| ID: mdl-1466521
ABSTRACT
A new oscillating drill, designed for insertional ease and safety, was biomechanically tested using an MTS 812 servohydraulic material testing machine (Instrom). Holding strength and drilling force were compared against a traditional rotary drill using rabbit tibias to approximate the diameter and cortical thickness of human metacarpals. Three differently sized (0.028-, 0.045-, and 0.062-in. diameter) K-wires were evaluated for each drill. Mean peak axial load (drilling force) was significantly different for each wire driver type in each of the three sized K-wires (p < or = 0.01). The oscillating drill used an average of 3 N less force to penetrate either cortex. Mean peak pull-out force (holding strength) was higher for the oscillating drill, but the difference was not significant (p > or = 0.5). This study indicated that the oscillating drill required less force for insertion and had a similar holding strength as the rotary drill. In addition, our drill has been shown to be less damaging to surrounding soft tissues. This new type of drill is likely to be advantageous in the fields of hand, microsurgery, orthopedic, and plastic surgery, where bone fixation is often near vital neurovascular structures.
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Banco de datos:
MEDLINE
Asunto principal:
Instrumentos Quirúrgicos
/
Hilos Ortopédicos
Límite:
Animals
Idioma:
En
Año:
1992
Tipo del documento:
Article