Read by QxMD icon Read

tibial torsion

John A Heflin, Scott Ford, Peter Stevens
Blount's disease is commonly attributed to an intrinsic, idiopathic defect in the posteromedial proximal tibial physis resulting in progressive bowing of the leg, intoeing, and lateral knee thrust. Treatment has historically included bracing, physeal stapling, or corrective osteotomy, and was determined primarily by age at presentation. As we feel the pathology is not necessarily age dependent, we have elected to use the technique of guided growth using a lateral tension band plate to correct limb alignment as a first-line treatment in all patients presenting to our clinic as long as they had growth remaining and no evidence of a physeal bar...
October 2016: Medicine (Baltimore)
Emily Andrisevic, David E Westberry, Linda I Pugh, Anita M Bagley, Stephanie Tanner, Jon R Davids
BACKGROUND: Excessive internal or external tibial torsion is frequently present in children with cerebral palsy. Several surgical techniques have been described to correct excessive tibial torsion, including isolated distal tibial rotation osteotomy (TRO). The anatomic changes surrounding this technique are poorly understood. The goal of the study was to examine the anatomic relationship between the tibia and fibula following isolated distal TRO in children with cerebral palsy. METHODS: Twenty patients with 29 limbs were prospectively entered for study...
October 2016: Journal of Pediatric Orthopedics
John G Galbraith, Charles J Daly, James A Harty, Hannah L Dailey
BACKGROUND: For tibial fractures, the decision to fix a concomitant fibular fracture is undertaken on a case-by-case basis. To aid in this clinical decision-making process, we investigated whether loss of integrity of the fibula significantly destabilises midshaft tibial fractures, whether fixation of the fibula restores stability to the tibia, and whether removal of the fibula and interosseous membrane for expediency in biomechanical testing significantly influences tibial interfragmentary mechanics...
October 2016: Clinical Biomechanics
Behzad Javaheri, Mark Hopkinson, Blandine Poulet, Andrea S Pollard, Sandra J Shefelbine, Yu-Mei Chang, Philippa Francis-West, George Bou-Gharios, Andrew A Pitsillides
Tissue inhibitor of metalloproteinases-3 (TIMP-3) regulates extracellular matrix via its inhibition of matrix metalloproteinases and membrane-bound sheddases. Timp-3 is expressed at multiple sites of extensive tissue remodelling. This extends to bone where its role, however, remains largely unresolved. In this study, we have used Micro-CT to assess bone mass and architecture, histological and histochemical evaluation to characterise the skeletal phenotype of Timp-3 KO mice and have complemented this by also examining similar indices in mice harbouring a Timp-3 transgene driven via a Col-2a-driven promoter to specifically target overexpression to chondrocytes...
2016: PloS One
David Hudson
The purpose of this study was to compare the rotational profile of adults with higher versus lower foot progression angles (FPA). Tibial torsion, femoral torsion, hip internal and external rotation and FPA data were collected on one hundred two healthy volunteers. Data were stratified into Low, Mid, and High FPA groups to study relationships among the components of the rotational profile and if there were group differences in the magnitude of torsion angles. Direction of torsion was also studied as an attempt to look at the incidence of offsetting between the tibia and femur...
September 2016: Gait & Posture
Ádám Tibor Schlégl, Ian O'Sullivan, Péter Varga, Péter Than, Csaba Vermes
The aim of this study was to evaluate bone age and its correlation with the lower limbs' developing skeletal anatomy during growth. 1005 children and young adults were evaluated for bone age and 14 different parameters measured on lower-limb reconstructions from radiological examinations carried out with an EOS 2D/3D system in the course of routine orthopedic indicated diagnostic practice. Cervical vertebral morphology evaluation for bone age using the Hassel-Farman method, which describes 6 stages of maturity, was selected...
August 11, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Abir Massaad, Ayman Assi, Ziad Bakouny, Christophe Sauret, Nour Khalil, Wafa Skalli, Ismat Ghanem
Skeletal abnormalities, affecting posture and walking pattern, increase with motor impairment in children with cerebral palsy (CP). However, it is not known whether these skeletal malalignments occur in children with slight motor impairment. Our aim was to evaluate skeletal malalignment at the level of the pelvis and lower limbs in ambulant children with CP, with slight motor impairment, using a low dose biplanar X-ray technique. Twenty-seven children with spastic CP (mean age: 10.9±4years, 7 Hemiplegia, 20 Diplegia, GMFCS levels I:17, II:10), with no previous treatments at the hips and knees, underwent EOS(®) biplanar X-rays...
September 2016: Gait & Posture
A Cebulski-Delebarre, N Boutry, C Szymanski, C Maynou, G Lefebvre, E Amzallag-Bellenger, A Cotten
PURPOSE: The goal of this study was to identify rotational abnormalities of the lower limb in adult patients with primary symptomatic flatfoot. MATERIALS AND METHODS: From September 2009 to May 2012, 24 patients (12 women, 12 men; mean age: 40 years) were prospectively included in the study. Each patient underwent radiographs of the flat foot and weight-bearing upright EOS(®) examination. Three-dimensional reconstructions of the lower extremities were performed with derived measurements (length, hip and knee parameters, rotations)...
June 13, 2016: Diagnostic and Interventional Imaging
Joseph L Petfield, Garry T Hayeck, David L Kopperdahl, Leon J Nesti, Tony M Keaveny, Joseph R Hsu
Virtual stress testing provides a non-invasive estimate of the strength of a healing bone through a biomechanical analysis of a patient's computed tomography (CT) scan. We asked whether virtual stress testing could improve management of patients who had a tibia fracture treated with external fixation. In a retrospective case-control study of 65 soldier-patients who had tibia fractures treated with an external fixator, we performed virtual stress testing utilizing CT scans acquired prior to fixator removal. The strength of the healing bone and the amount of tissue damage after application of an overload were computed for various virtual loading cases...
June 15, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Glen Gaebe, Richard Kruse, Kenneth Rogers, William G Mackenzie, Laurens Holmes
BACKGROUND: Pseudoachondroplasia is a diverse group of skeletal dysplasias with a common pathway of altered cartilage oligomeric matrix protein (COMP) production. This rhizomelic dwarfism is commonly associated with deformities of the lower extremities, accelerated osteoarthritis, and ligamentous laxity. One of the most common alignment problems is coronal knee angulation which combined with tibial torsion, results in a complex deformity. The outcome of surgical correction of these deformities is variable...
June 13, 2016: Journal of Pediatric Orthopedics
F Hollman, J Korpisah, A H Ismail, Pjjm Rompa, P Moh, L W van Rhijn, H M Staal
PURPOSE: The W/M serrated high tibial osteotomy is a not frequently described surgical technique for simultaneously correcting the varus and torsional deformity in patients with Blount's disease. Without the need for internal fixation, this surgical treatment is well suited for developing countries. This study describes the short-term results of the bilateral and unilateral W/M serrated osteotomy in patients with infantile Blount's disease. METHODS: Between May 2008 and January 2013, 52 patients were treated with uni- (n = 22) or bi-lateral (n = 30) W/M serrated osteotomy of the proximal tibia due to a tibial varus deformity in two district hospitals in Ghana...
July 2016: Nigerian Journal of Clinical Practice
James D Wernle, Kimberly D Mimnaugh, Alicia S Rufner, Oludele O Popoola, Jean-Noel Argenson, Michael Kelly
The suitability of grafted vitamin-E highly crosslinked polyethylene (VE-HXPE) for use in posterior stabilized (PS) and constrained condylar knee (CCK) applications has not been explored. We hypothesized that VE-HXPE performs better than conventional and crosslinked polyethylene under clinically relevant conditions. PS tibial post fracture resistance under adverse shear loading conditions, CCK tibial post resistance to torsional fatigue, delamination resistance under high stress, and wear resistance were evaluated...
May 18, 2016: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Jangwon Lee, Hye-Sang Park
This research was performed to identify the incidence of deformity of lower extremity and to identify the relationship of the incidence between the deformities. Once the incidences and relationship are found, next purpose was to find the effects of physical characteristics and residence styles on the development of lower extremity deformities. One hundred fifteen males and 108 females participated in this study. Data collecting was performed by questionnaire and visual postural evaluation. The incidence of genu varus was significantly high in standing-up life style compared to sitting-on life style (chi-square=8...
April 2016: Journal of Exercise Rehabilitation
Douglas S Weinberg, Braden J Tucker, Joseph P Drain, David M Wang, Allison Gilmore, Raymond W Liu
BACKGROUND: Patellofemoral joint osteoarthritis is common, although circumstances dictating its evolution and pathogenesis remain unclear. Advances in surgical technique have improved the ability to modify long-bone alignment in the coronal, sagittal, and axial planes. However, to our knowledge, there is no significant long-term data available in regard to the relationship between anatomic alignment parameters most amenable to surgical modification and patellofemoral joint osteoarthritis...
June 2016: Knee
Douglas S Weinberg, Paul J Park, Raymond W Liu
OBJECTIVES: Tibia fractures are the most common long bone fracture. Criteria for closed and open reduction are based on the amount of fracture shortening, angulation, and rotation, with high success rates achieved if acceptable alignment is maintained. However, there exists limited data available regarding the long-term consequences of specific deformation patterns. METHODS: The tibiae of 2898 cadaveric skeletons were manually inspected for evidence of fracture...
September 2016: Journal of Orthopaedic Trauma
Tobias J Dietrich, Sandro F Fucentese, Christian W A Pfirrmann
This review article presents several pitfalls and limitations of image interpretation of anatomical risk factors for patellar instability. The most important imaging examinations for the work-up of patients with patellar instability are the true lateral radiograph and transverse computed tomography (CT) or MR images of the knee. Primary anatomical risk factors are an insufficient medial patellofemoral ligament (MPFL), patella alta, trochlear dysplasia, increased distance from the tibial tuberosity to the trochlear groove (TTTG), and torsional limb parameters...
February 2016: Seminars in Musculoskeletal Radiology
Rachel M Izard, William D Fraser, Charles Negus, Craig Sale, Julie P Greeves
PURPOSE: Few human studies have reported early structural adaptations of bone to weight-bearing exercise, which provide a greater contribution to improved bone strength than increased density. This prospective study examined site- and regional-specific adaptations of the tibia during arduous training in a cohort of male military (infantry) recruits to better understand how bone responds in vivo to mechanical loading. METHODS: Tibial bone density and geometry were measured in 90 British Army male recruits (ages 21±3years, height: 1...
July 2016: Bone
Amy E Quanbeck, Jeffrey A Russell, Sara C Handley, Deborah S Quanbeck
Turnout, or external rotation (ER) of the lower extremities, is essential in ballet. The purpose of this study was to utilise physical examination and a biomechanical method for obtaining functional kinematic data using hip and knee joint centres to identify the relative turnout contributions from hip rotation, femoral anteversion, knee rotation, tibial torsion, and other sources. Ten female dancers received a lower extremity alignment assessment, including passive hip rotation, femoral anteversion, tibial torsion, weightbearing foot alignment, and Beighton hypermobility score...
March 25, 2016: Journal of Sports Sciences
Khadije Hette, A A Anderson, D M Barnes
OBJECTIVES: To describe a protocol for the measurement of tibial rotational alignment using CT multiplanar reconstructions. To establish the feasibility of producing general guidelines for the amount of torsional contouring to apply to a bone plate applied to the medial aspect of the tibia during repair of a non-reducible tibial fracture. METHODS: CT scans of the pelvic limbs of 15 chondrodystrophic and 34 non-chondrodystrophic dogs were studied. Medial tibial cortex torsion angle and distal medial tibial cortex angle were determined from CT multiplanar reconstructions...
May 2016: Journal of Small Animal Practice
Matthias Erschbamer, Pascal Gerhard, Harry Klima, Birte Ellenrieder, Katja Zdenek-Lehnen, Karlmeinrad Giesinger
We retrospectively reviewed the safety and efficacy of operative treatment of torsional malalignment of the tibia in 44 children, on whom we performed 71 derotational osteotomies of the distal tibia to treat tibial torsion. We placed four pins using an alignment jig, performed a percutaneous osteotomy, and applied an external fixator after derotation. Postoperative radiographs showed accurate tibial derotation and pin placement in all patients. Nine patients developed superficial pin-tract infections that resolved with antibiotic treatment...
March 18, 2016: Journal of Pediatric Orthopedics. Part B
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"