Browsing by Author "Espinosa, Julio"

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    Lumbar Scoliosis in Postmenopausal Women: Prevalence and Relationship With Bone Density, Age, and Body Mass Index
    (LIPPINCOTT WILLIAMS & WILKINS, 2011) Urrutia, Julio; Diaz Ledezma, Claudio; Espinosa, Julio; Berven, Sigurd H.
    Study Design. Cross-sectional study.
  • No Thumbnail Available
    Item
    The impact of lumbar scoliosis on pain, function and health-related quality of life in postmenopausal women
    (2011) Urrutia, Julio; Espinosa, Julio; Diaz-Ledezma, Claudio; Cabello, Carlos
    The impact of adult scoliosis on pain, function and health-related quality of life (QOL) has not been clearly defined. A population-based study using widely applied screening tools could better reflect the impact of adult scoliosis. In this study, a visual analog pain scale assessment (VAS) for lumbar and leg pain, an Oswestry disability index (ODI) and a standard version of the Medical Outcome Study Short Form-36 (SF-36) questionnaire were sent by mail to 261 women of age 50 years and older, consecutively evaluated with dual-energy radiograph absorptiometry (DXA) scan images. 138 patients (32 with lumbar curves 10A degrees or bigger) returned the questionnaires. Differences in lumbar VAS, leg VAS, ODI and SF-36 values between groups of patients with curves < 10A degrees, 10A degrees-19A degrees and a parts per thousand yen20A degrees were evaluated. Correlation analyses of the Cobb angle, age and body mass index (BMI) with VAS, ODI and SF-36 values, and multivariate regression analysis were performed. Patients with curves < 10A degrees, 10A degrees aEuro"19A degrees and a parts per thousand yen20A degrees had no significant differences in lumbar or leg VAS, ODI or SF-36 values. ODI values correlated with age and BMI; SF-36 values correlated with BMI only; lumbar and leg VAS values did not correlate with lumbar curvature, age or BMI. Regression disclosed that Cobb angle values did not influence ODI, SF-36 or VAS values. In postmenopausal women with mild and moderate lumbar curves, Cobb angle had no influence on pain, function and QOL; age and BMI had small effect.
  • No Thumbnail Available
    Item
    Tibial Cut Accuracy in Mechanically Aligned Total Knee Arthroplasty Using Extensor Hallucis Longus Tendon to Determine Extramedullary Tibial Guide Position
    (2022) Besa, Pablo; Vega, Rafael; Ledermann, Gerardo; Calvo, Claudio; Angulo, Manuela; Lira, Maria Jesus; Vidal, Catalina; Orrego, Mario; Irribarra, Luis; Espinosa, Julio; Vial, Raimundo; Irarrazaval, Sebastian
    This study aimed to determine the tibial cut (TC) accuracy using extensor hallucis longus (EHL) tendon as an anatomical landmark to position the total knee arthroplasty (TKA) extramedullary tibial guide (EMTG), and its impact on the TKA mechanical alignment (MA). We retrospectively studied 96 TKA, performed by a single surgeon, using a femoral tailored intramedullary guide technique. Seventeen were prior to the use of the EHL and 79 used the EHL tendon to position the EMTG. We analyzed preoperative and postoperative standing total lower extremity radiographs to determine the tibial component angle (TCA) and the correction in MA, comparing pre-EHL use and post-EHL technique incorporation. Mean TCA was 88.89 degrees and postoperative MA was neutral in 81% of patients. Pre- and postoperative MAs were not correlated. As a conclusion of this study, using the EHL provides a safe and easy way to determine the position of EMTG.