Study Design. This study analyzed two groups of subjects during forward bending. Group 1 (n = 20) contained with a history low back pain and 2 21) included without pain. Objective. The purposes this were to establish the amount pattern lumbar spine hip motion bending, determine differences in Summary Background Data. Reported values for bending vary from 23.9° 60° ranges 26° 66°. There has been no direct both total amounts or Methods. A three-dimensional optoelectric analysis system was used...

In the present study, tensile mechanical properties of all collateral ligaments human ankle joint were determined, in vitro, from tests conducted on 120 obtained 20 fresh lower limbs. The ultimate load lateral increased an anteroposterior sequence, with anterior fibulotalar ligament less than fibulocalcaneal and posterior ligament. For medial ligaments, increasing order was found to be tibiocalcaneal ligament, tibionavicular tibiospring tibiotalar so frequently neglected anatomical...

The in-vitro, three dimensional kinematic characteristics of the human ankle and subtalar joint were investigated in this study. main goals investigation were: 1) To determine range motion foot-shank complex associated joints; 2) coupling complex, 3) identify relationship between movements at joints resulting produced foot shank. tests conducted on fifteen fresh amputated lower limbs consisted incrementally displacing with respect to shank while articulating bones was measured through a...

In Brief Study Design. vitro comparison of four reconstruction techniques following transforaminal lumbar interbody fusion in a human cadaveric model. Introduction. Transforaminal (TLIF) is relatively new technique that avoids the morbidity an anterior approach and nerve root manipulation posterior fusion. This study measured effects TLIF on overall segmental flexibility spine using different spinal implant configurations. Summary Background Data. Anterior fusion, combined anterior–posterior...

Progressive peritalar subluxation (PTS) is part of adult acquired flatfoot deformity (AAFD). We investigated the use middle facet as an indicator PTS using standing, weight-bearing computed tomography (CT) images. hypothesized that CT would be accurate method measuring increased ("uncoverage") and incongruence middle-facet among patients with AAFD.We included 30 stage-II AAFD (20 female 10 male; mean age, 57.4 years [range, 24 to 78 years]) matched controls 51.8 19 81 who underwent CT. Two...

Study Design. This study analyzed two groups of individuals during return to an upright position (extension) from a forward, bent position. Group 1 (n = 12) included with history low back pain who were currently asymptomatic, and group 2 no pain. Objectives. To determine the amount pattern lumbar spine hip motion that occur as individual rises flexed position, if differences exist in this measurement between without pain, hamstring length is related motion. Summary Background Data. Reports...

The objective of the present study was to investigate in-vitro, coupled, three-dimensional load-displacement and flexibility characteristics human ankle joint complex consisting talocrural talocalcaneal joints determine effects that sectioning anterior talofibular ligament has on these characteristics. Similar other anatomical such as knee intervertebral joint, found exhibit highly nonlinear with angular displacement approaching asymptotic values external load increased. Therefore, a...

Background The modified Jobe and Docking techniques are commonly used to reconstruct the elbow's ulnar collateral ligament. Hypothesis Valgus laxity kinematic coupling after these reconstructive procedures similar those of native Study Design Controlled laboratory study. Methods Testing was conducted on 10 pairs cadaver elbows using a 4 degrees freedom loading system. Subfailure valgus loads were applied at different flexion angles; motion ligament elongation measured. then loaded failure in...

Throwing injuries.To study the effects of posterior capsule tightness on humeral head position in late cocking simulation.Eight fresh frozen shoulders were placed "late cocking," 90 degrees abduction, and 10 adduction maximal external rotation. 3D measurements relationship to glenoid taken with an infrared motion sensor, both before after suture plication capsule. Plications 20% posterior/inferior entire performed, followed by plications 40% capsule.Cadaver Lab.Posterior capsular...

ABSTRACT Many failures in total joint replacement are associated to prosthesis‐to‐bone mismatch. With recent additive‐manufacturing, that is, 3D‐printing, custom‐made prosthesis can be created by laser‐melting metal powders layer‐by‐layer. Ankle is particularly suitable for this progress because of the limited number sizes and poor bone stock. In study a novel procedure presented subject‐specific ankle replacements, including medical‐imaging, modelling, design, 3D‐printing. Three shank‐foot...

Background: The purpose of this study was to compare the mechanical properties metacarpal neck fracture fixation by headless compression screw (HCS) with that Kirschner wire (KW) cross-pinning and locking plate (LP) fixation. Methods: A created in 30 fourth-generation composite Sawbones models. volar-based wedge removed using a custom jig simulate typical apex dorsal fracture, unstable flexion. models were divided into 3 equal groups based on method fixation: retrograde two 1.2-mm KWs,...

A test-retest design to establish the reliability of a new system capable quantifying load-displacement characteristics cervical spine. The study was primarily descriptive, but allowed comparisons between men and women as well within-group among different motions.To determine flexibility entire spine in vivo developed for this purpose.The has been studied vitro by applying loads isolated osteoligamentous segments. Quantification mechanical may provide insights effects pathology treatment...

This study quantified and compared the efficacy of in-shoe orthoses ankle braces in stabilizing hindfoot medial longitudinal arch a cadaveric model acquired flexible flatfoot deformity. was addressed by combining measurement kinematics with plantar pressure distribution, produced response to axial loads simulating quiet standing. Experiments were conducted on six fresh-frozen lower limbs. Three conditions tested: intact-unbraced; flatfoot-unbraced; flatfoot-braced. Flatfoot deformity created...