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Fig. 1A–C SEM images of the surfaces of (A) grit-blasted (x 2000), (B) SLA (x1000) and (C)MAO (x1000) specimens. (A) The grit-blasted specimen shows a finely textured surface. (B)The SLA specimen shows 1 – 2-μm micropitting, but no porous structure. (C) The MAOspecimen shows a multilayered porosity of 1 – 5 μm.Fig. 2A-B (A) Intraoperative photograph showing the transcortical cylindrical implants insertedin the femoral cortex. (B) The beagles were scarified at 24 weeks postoperative forhistomorphometry and biomechanical analyses.Fig. 3 Radiologic images of the femur at 24 weeks postoperative. There was no significantdifference among the four groups of surface treatments.Fig. 4 The percentage of bone-to-implant contact was calculated from the analysis of eightspecimen sections. The MAO group shows the highest degree of bone osseointegration amongall surface treatments, followed by the SLA, grit blasted, and then machined groups.Fig. 5 Interfacial shear strength 24 weeks postoperative (n = 16, P < 0.05). The MAO groupshows a statistically significant increase of the interfacial strength when compared to the others.FiguresFigure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8Poster: 56Meralgia Paresthetica: A Cause of Anterior Thigh Pain After a DissociatedPelvic-Sacral Joint; Management and Literary Review*Haoju Lo - Taipei City Hospital - Taichung City, Taiwan (R.O.C.)*Email: doctor@url.com.twMeralgia paresthetica is an entrapment neuropathy of the lateral femoral cutaneous nerve(LFCN). When the LFCN is entrapped, paresthesias and numbness of the upper lateral thigharea are the presenting symptoms. In most cases, the cause is considered to be idiopathicentrapment of the lateral femoral cutaneous nerve. These causes of meralgia paresthetica haveranged from chronic disturbance of the nerve due to a tense inguinal ligament in the case of aleg-length discrepancy; tight trousers; wallet carried in front pants pockets; obesity orpregnancy; or a mass compressing the nerve. In the case presented here, a trauma inducedpelvic fracture and displaced pelvic-sacral made a complicated problem after an operation forreduction. This case with symptoms of meralgia paresthetica underwent local injection andnerve release then symptom relief.ã€Materials and Results】A 49-year-old female suffered from a pelvic fracture after a trafficaccident. Pelvic fracture with displaced was diagnosed and then underwent reduction operation.file:///E|/ISTA2010-Abstracts.htm[12/7/2011 3:15:47 PM]