Twelve cadaver lower limbs were used for radiographic and CT assessment of the tibiofibular syndesmosis. Plastic spacers placed in distal intervals each specimen successive 1-mm increments until diastasis could be appreciated on plain radiographs. All 2- 3-mm diastases noted clearly identified scans, while 1-, 2-mm, half syndesmotic not with routine scanning is more sensitive than radiography detecting minor degrees injuries. Therefore, a scan can performed cases instability after ankle...

A retrospective review of the cases 180 patients who had 198 acute open fractures tibial shaft and were admitted to a multiple-trauma referral center over three-year period revealed an incidence accompanying compartment syndrome 9.1 per cent (eighteen in sixteen patients). Each eighteen syndromes was documented by measurements intracompartmental pressure that obtained saline-injection technique, all treated four-compartment fasciotomy. The found be directly proportional degree injury soft...

In Brief Study Design. To determine the effect of cage/spacer stiffness on stresses in bone graft and cage subsidence. Objective. investigate biomechanics fused segment lumbar region using finite element analysis. Summary Background Data. There are a wide variety designs available for interbody fusion surgery. These range from circular, tapered, rectangular with without curvature, were initially manufactured titanium alloy. Recent advances medical implant industry have resulted grade...

A multidisciplinary study involving clinical, histologic, biomechanical, biologic, and immunohistologic approaches. OBJECTIVE.: To clarify the pathomechanism of hypertrophy ligamentum flavum.The most common spinal disorder in elderly patients is lumbar canal stenosis, causing low back leg pain, paresis. Canal narrowing, part, results from flavum. Although histologic biologic literature on this topic available, flavum still unknown.The thickness 308 ligamenta flava at L2/3, L3/4, L4/5, L5/S1...

Study Design. In this cadaveric study, the outcomes of two techniques for pedicle screw placement in thoracic spine were compared. Objectives. To assess Roy-Camille technique, and to determine whether placement, aided by partial laminectomy, could decrease incidence violations. Summary Background Data. Pedicle fixation remains technically challenging. The method may be one leading placement. However, there are few studies evaluating technique determining methods penetration with insertion....

The assessment of sacrum angular motions and stress across sacroiliac joint (SIJ) articular surfaces using finite element lumbar spine-pelvis model simulated posterior fusion surgical procedures.To quantify the increase in SIJ as a function fused spine model.A review literature suggests that for 20% to 30% surgery patients, failed back syndrome possible complication. might be contributing factor 29% 40% cases. exact pathomechanism which leads pain generation is not well understood. We...

This anatomic study tested placement of C2 pedicle screws using cadaver specimens.To further assess the safety transpedicular screw in axis by comparing two surgical techniques.Transpedicular fixation traumatic spondylolisthesis has been described literature. Recently, studies and clinical applications for lesions middle lower cervical spine have described. No previous assessing is available.Sixteen embalmed cadaveric specimens were used this study. In first eight (Method A), point entry was...

A histologic, biologic, and immunohistochemical assessment using human samples of the lumbar ligamentum flavum.To prove our hypothesis that hypertrophy flavum is caused by accumulation inflammation-related scar tissue.Lumbar spinal canal stenosis 1 most common disorders in elderly patients. Canal narrowing, part, results from flavum. The mechanism remains unclear. Based on preliminary analyses, we have previously proposed may be due to tissue ligament. Scar reported develop after...

In Brief Study Design. Clinical review of pediatric patients with lumbar spondylolysis and biomechanical analysis using finite-element spine model. Objectives. To evaluate the usefulness signal changes observed on MR images pedicle for early diagnosis spondylolysis, to investigate pathomechanism based stresses in pedicles, as predicted analyses. Furthermore, change predict bony healing following conservative treatment. Summary Background Data. Since early-stage can achieve osseous...

Fifty-eight patients with 60 talar fractures were retrospectively reviewed. There 39 men and 19 women. The age average was 32 (range, 14–74). Eighty six percent of the had multiple injuries. most common mechanism injury a motor vehicle accident. Twenty-seven (45%) neck, 22 (36.7%) process, 11 (18.3%) body. Forty-eight operative treatment 12 non-operative management. follow-up period 30 months 24–65). Thirty-two (53.3%) developed subtalar arthritis. Two subsequent fusion. Fifteen (25%) ankle...

Study Design This study evaluated the lower cervical pedicle from C3 to C6 provide information for accurate transpedicular screw fixation in this region. Objectives To measure dimensions of and determine correct location axis on posterior aspect lateral mass. Summary Background Data Several anatomic studies clinical applications spine have been documented, but little quantitative data concerning its projection are available. Methods Forty dry specimens (160 vertebrae) were used study....

Unilateral spondylolysis is common in youths; its clinical and biomechanical features, especially effects on the contralateral side, are not fully understood.Unilateral predisposes side to stress fracture, athletes actively engaged sporting activities involving torsion of trunk.Case series descriptive laboratory study.Thirteen younger than age 20 with unilateral were included. The pedicle pars spondylolytic vertebrae examined using computed tomography magnetic resonance imaging. Using a...

Tarsal tunnel syndrome is an infrequent and probably underdiagnosed clinical condition. Diagnosis treatment depend on understanding the tibial branching pattern within tarsal tunnel. A total of 68 foot dissections were performed. Bifurcation into medial lateral plantar nerves occurred in 93% proximal 7%. Proximal bifurcation may predispose to syndrome, its occurrence correlates with diagnosis. Nine different calcaneal patterns noted; they provide anatomical explanation for heel sparing. An...

Study Design. This study defined the projection point of thoracic pedicles on their posterior aspect and its relation to a reliable landmark. It also reported pedicle dimensions based 43 spines. Objectives. To determine axis spine, quantitatively describe relations some landmarks, evaluate linear angular pedicle. Summary background data. Posterior segmental screw fixation is current standard internal at level second lumbar vertebrae or below. However, pedicular in especially middle upper...