R. Cianci et al., A COMPUTERIZED SYSTEM FOR RADIOGRAPHICAL EVALUATION IN TOTAL HIP-ARTHROPLASTY, Computer methods and programs in biomedicine, 46(3), 1995, pp. 233-243
In the field of orthopaedic surgery radiographical image evaluation is
frequently used to determine possible pathological processes. For tot
al hip arthroplasty in particular, it is important to evaluate both pr
eoperative femoral morphology and post-operative prosthesis performanc
e in terms of bone adhesion to the implant and, consequently, loosenin
g or stability of prosthesis components, References to a method called
Roentgen stereophotogrammetric analysis (RSA) exist in the literature
; however, the authors note that this method is expensive and requires
the insertion of markers during the operation, Here we present an alt
ernative computerized method for radiographical evaluation which we ca
ll radiographical evaluation system in total hip arthroplasty (RESTHA)
. The accuracy and the repeatability of the method have been evaluated
using a medium-sized pelvis-femur system made of composite material.
A mean error of +/-2 mm has been associated to each experimental point
. A post-operative inquiry case study is presented to indicate the app
licability of the method.