Ultrasound-navigated cementless total hip arthroplasty (THA) was performed in 10 consecutive patients with primary osteoarthritis of the hip between August 2008 and October 2009 (M:F, 6:4; median age, 61 years; age range, 30-86 years). The pelvic orientation was defined by preoperative digitization and registration of bony landmarks. Cup inclination and anteversion were documented for each pati...

Methods One-hundred thirty six volunteers (male:34, female:102, mean BMI=21.1) who have no history of spinal diseases were enrolled. The average age was 39.5 years (20 ~ 69). Spino-pelvic alignments (T1/T12 kyphosis, Lumbar Lordosis [LL], Sacral Slope [SS], Pelvic tilt [PT], Pelvic Incidence [PI], T9-hip axis sagittal angle [T9ang], and sagittal vertical axis [SVA]) were measured using the EOS ...

Joint centers and axes of rotation (joint parameters) are central to all branches of movement analysis. In gait analysis, the standard protocol used to determine hip and knee joint parameters is prone to errors arising from palpation, anthropometric regression equations, and misplaced alignment devices. Several alternative methods have been proposed, but to date none have been shown to be accur...

AIM To review and study the effect of lengthening along the anatomical axis of long bones and its relation to the mechanical axis deviation. METHODS We try in this review to calculate and discuss the exact clinical impact of lengthening along the anatomical axis of the femur on affecting the limb alignment. Also we used a trigonometric formula to predict the change of the femoral distal anato...

The ROBODOC system was designed to address potential human errors in performing cementless total hip replacement. The system consists of a preoperative planning computer workstation (called ORTHODOC) and a five-axis robotic arm with a high speed milling device as an end effector. The combined experience of the United States Food and Drug Administration multicenter trial and the German postmarke...

Loading of the skeleton can be achieved through weight-bearing exercise which is important for the development of a functionally and mechanically appropriate bone structure. Our objectives were to determine hip cross-sectional geometry in elite male athletes (n=54) subjected to different loading modalities (gymnastics, endurance running and swimming) and non-athletic, age-matched controls (n=20...

original article   one type of electromagnetic fields, based on frequency range, is extremely low frequency (elf) fields. there are lots of reports about measuring elf-magnetic field (mf) in substations, power plants, cities and etc. this study aimed to compare the difference between measurement of three-axis and single-axis probe mf meters. elf-mf was measured by tes-1394 mf tester (three-axis...

SUMMARY This study is designed to confirm the changes of various bones in the osteopetrotic op/op mouse. The female adult mouse were sonicated in papain solution. After the complete treatment, the bones (Skull, Mandible, Scapula, Humerus, Radius, Ulna, Hip, Femure, Tibia, Atlas, Axis and 5th Lumbar vertebra) were measured three dimensionally using of high quality scale and low power binocular ...

CONTEXT As high school female athletes demonstrate a rate of noncontact anterior cruciate ligament (ACL) injury 3-6 times higher than their male counterparts, research suggests that sagittal-plane hip strength plays a role in factors associated with ACL injuries. OBJECTIVE To determine if gender or age affect hip-abductor strength in a functional standing position in young female and male ath...