Surgical-site-infections (SSI) prolong hospital stay, and they are leading nosocomial cause of morbidity and a source of excess cost. Recently, a waterless hand-rubbing protocol containing aqueous 1% chlorhexidine gluconate was developed before surgery, but there is no literature in orthopaedic surgery. The aim was to compare the SSI rates between waterless hand-rubbing and traditional hand-scrubbing protocol. STUDY 1: A total of 996 consecutive patients who underwent orthopaedic surgery between August 1, 2012 and January 31, 2014, were screened for SSI within 30 days after surgery. 500 patients from August 1, 2012 to April 1, 2013 were used by traditional hand-scrubbing, and 496 patients from June 1, 2013 to January 1, 2014 were by waterless hand-rubbing. STUDY 2: The twelve operating room staff members were randomly recruited, and the participants were assigned equally to use either a traditional hand-scrubbing protocol or a waterless hand-rubbing on 2 separate days. Washing times were recorded and microorganisms on hands were sampled on bacterial culture plates. Two days after sampling, the grown colonies were counted.[Introduction]
[Materials and Methods]
A Trabecular Metal Modular Acetabular System (Zimmer, Warsaw, Indiana, USA) is a peripheral rim expansion (elliptical) cup, i.e. a non-hemispherical cup. Radiologically a non-hemispherical cup may be deferent from other conventional hemispherical cups. We reviewed radiological findings of a Trabecular Metal Modular Acetabular System chronologically. Twenty six patients with osteoarthritis underwent primary total hip arthroplasty (THA) using a Trabecular Metal Modular Acetabular System from 2011 to April 2013. Twenty five patients (follow-up rate: 96.2%) 31 hips could be followed-up over a year were registered. In common, the diameter of every femoral head was 32 mm. We planned the acetabular cup inclination angle to be 45-degree, the cup coverage with host-bone (cup-CE angle) to be over 10-degree, and high hip center was allowed up to 20mm. In case of the cup-CE angle under 10-degree, an acetabular cup was placed medially using Dorr's medial protrusio technique. We established the medial protrusion angle indicating the degree of medial protrusion of an acetabular cup over the pelvic internal wall. The medial protrusion angle was defined by the center point of THA (C) and the 2 cross-points (X1, X2) which the outline of an acetabular cup crosses the Kohler's line (Figure 1). The cup anteversion angle was measured by the method of Lewinnek, and the cup fixation was evaluated according to the Tompkin's classification.Purpose
Methods
