Medial patellofemoral ligament reconstruction is a standard treatment option for patients with patellar instability. The main purpose of this study was to determine whether isolated anatomic medial patellofemoral ligament reconstruction using double folded, four-strand plantaris tendon autograft restores patellar stability in adolescent patients. Plantaris tendon autografts were harvested through proximal approach and used in four adolescent patients.
View Article and Find Full Text PDFJ Am Acad Orthop Surg Glob Res Rev
November 2020
Purpose: The purpose of this retrospective cross-sectional case-control study was to evaluate an alternative imaging test for lateralization of the tibial tuberosity, unbiased towards knee rotation.
Methods: On axial CT images of 129 knees, classified as cases (two or more patellar luxations) and controls (no patellar luxations), two raters gauged the standard tibial tuberosity-trochlear groove (TT-TG) distance, tibial tuberosity-femoral intercondylar midpoint (TT-FIM) distance, and new tibial tuberosity-tibial intercondylar midpoint (TT-TIM) distance singly, and knee longitudinal rotation angles (LRAs), and the presence of femoral trochlear dysplasia (FTD) jointly.
Results: All imaging tests intercorrelated and discriminated between stability groups.
The anterolateral ligament is recently recognized as an important structure in restoring rotational stability of the anterior cruciate ligament-deficient knee. Biomechanical and clinical studies confirmed the benefits of concurrent anterior cruciate ligament and anterolateral ligament reconstruction. However, present techniques mostly use hamstring tendons autografts and therefore additionally disrupt the knee biomechanics.
View Article and Find Full Text PDFBackground: To examine the relationship of the Böhler's angle with age, sex, and laterality, and to analyze the interrater agreement.
Methods: After 248 digital lateral radiographs of the foot were submitted to exclusion criteria, three raters independently measured the Böhler's angle on the remaining 130 X-rays in PACS. The variables were analyzed with correlation coefficients, and one-way ANOVA.
In the longitudinal (sagittal) plane, the angle between the axis of the uterine body and the cervix defines the flexion, whereas the angle between the axis of the cervix and the axis of the vagina defines the version of the uterus. In that regard, there are four uterine positions in the pelvis: anteflexion, retroflexion, anteversion and retroversion. The anteflexion with anteversion of the uterus is considered the natural position of the uterus in the pelvis.
View Article and Find Full Text PDFObjective: To propose a new reference line in diagnosing a high-riding patella (patella alta) on routine digital lateral radiographs of the knee.
Materials And Methods: On 64 routine digital lateral radiographs of adult knees with no bone pathology or surgery and over the range of knee flexion between 1.6° and 79.
Objective: To compare the positions of the trochlear groove (TG) line and the vertical midline of the pericondylar rectangle on axial computed tomography (CT).
Materials And Methods: A retrospective pilot study was conducted in February and March 2011 comprising 14 knees in 9 consecutive patients with patellofemoral pain, a normal trochlear angle (124°-145°), and no medical record of prior knee surgery. After the axial CT image displaying the center of the trochlear groove ("reference cut") with a normal trochlear angle was identified, the pericondylar rectangle was drawn and located in the first quadrant of the Cartesian rectangular coordinate system.
The aim of our study was to investigate the influence of gender, loss of academic year(s), confidence and attitudes of students on the clinical experience gained by undergraduate education. The survey was conducted during 2004 and 2005 in a sample of 182 students of the 5th and the 6th year at J.J.
View Article and Find Full Text PDFObjective: To compare the efficacy and tolerability of two different types of vaginal progesterone (P), Crinone 8% gel (Fleet Laboratories Ltd., Watford, United Kingdom) and Utrogestan capsules (Laboratories Besins International, Paris, France), used for luteal support after in vitro fertilization (IVF) cycles.
Design: Cohort study.