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Leg length inequality

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https://www.readbyqxmd.com/read/29430492/a-single-femoral-component-for-all-total-hip-replacements-performed-by-a-trust-does-this-affect-early-clinical-and-radiological-outcomes
#1
James Ricketts, Paul Sherry
Background: Hospitals may be under pressure to implement cost saving strategies regarding prosthesis choice. This may involve the use of components which are not the first preference of individual surgeons, or those they have little experience with. We aim to examine the effect of standardizing the type of femoral stem used in a single trust, and determine whether this is safe practice, particularly in those who have never used this particular stem before. Methods: We report results at 2 years of 151 primary total hip arthroplasties performed using a single femoral stem...
January 2018: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29081149/-effect-of-simulating-leg-length-inequality-on-spinal-and-pelvic-posture-in-the-elderly
#2
H F Zhang, J L Liao, M Ji, S Y Tang, J F Jin, L Chen, L J Wu
Objective: To study the effects of simulating leg length inequality on the spine and pelvic posture in standing and walking states and to explore their compensatory laws. Methods: From January to April, a total of 44 healthy volunteers were rasterstereographically examined for spine and pelvis in Institute of Digitized Medicine, Wenzhou Medical University and Department of Orthopaedics, First Affiliated Hospital of Wenzhou Medical University.Volunteers wore uniform shoes, and single 5 mm thick insoles were customized...
October 24, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29039128/distal-femoral-flexion-deformity-from-growth-disturbance-treated-with-a-two-level-osteotomy-and-internal-lengthening-nail
#3
Austin T Fragomen, Fiona R Fragomen
Salter Harris fractures of the distal femur can lead to growth disturbance with resulting leg length inequality and knee deformity. We have looked at a case series (3) of patients who presented with a distal femur flexion malunion and shortening treated with a distal femoral osteotomy and plating and a proximal femoral osteotomy with a magnetic internal lengthening nail. Does a two-level osteotomy and internal fixation approach provide a reliable result both radiographically and functionally? The average knee extension loss was 12°, LLD 47 mm, PDFA 65°, MAD 2 mm...
November 2017: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/28946517/evaluation-of-the-effect-of-heel-lift-on-postural-stability-and-symmetry-of-muscle-activity
#4
Patrik Kutilek, Zdenek Svoboda, Slavka Viteckova, Karel Hana, Zdenek Vana
BACKGROUND: Although a leg length inequality (LLI) has the effect on the performed movement, more complex indices for the evaluation of kinematic variables of postural stability and a symmetry of a muscle activity during standing in subjects with the LLI were never used before. OBJECTIVE: The objective is to present appropriate parameters for an evaluation of kinematic variables of postural stability and muscle activity during standing, i.e. to consider EMG signals, in patients with LLI...
September 22, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28793888/does-structural-leg-length-discrepancy-affect-postural-control-preliminary-study
#5
Małgorzata Eliks, Wioleta Ostiak-Tomaszewska, Przemysław Lisiński, Paweł Koczewski
BACKGROUND: Leg-length inequality results in an altered position of the spine and pelvis. Previous studies on the influence of leg asymmetry on postural control have been inconclusive. The purpose of this paper was to investigate the effect of structural leg-length discrepancy (LLD) on the control of posture. METHODS: We studied 38 individuals (19 patients with structural LLD, 19 healthy subjects). The examination included measurement of the length of the lower limbs and weight distribution as well as a static posturography...
August 9, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28665226/is-a-long-leg-a-risk-for-hip-or-knee-osteoarthritis
#6
Kaj Tallroth, Leena Ristolainen, Mikko Manninen
Background and purpose - 7% of the asymptomatic population has leg-length inequality (LLI) greater than 12 mm. It has been proposed that LLI of >5 mm can be associated with an increased risk of osteoarthritis (OA) of the knee and hip. We studied a possible association between LLI and OA of the knee and hip joint. Patients and methods - We followed 193 individuals (97 women, 96 men) for 29 years. The initial mean age of the participants was 43 (34-54) years, and they had no clinical histories or signs of leg symptoms...
October 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28559750/comparison-of-supine-and-prone-methods-of-leg-length-inequality-assessment
#7
Robert Cooperstein, Marc Lucente
OBJECTIVE: The primary objective of the current study was to determine the reliability between methods of supine and prone leg length inequality (LLI) assessment. The secondary objective was to determine if the degree of examiner confidence affected the degree of intermethod agreement. METHODS: Two experienced doctors of chiropractic assessed 43 participants for LLI, one using a prone and the other a supine method. They stated whether they were confident or not confident in their findings...
June 2017: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/28394688/distance-between-the-malleoli-and-the-grounda-new-clinical-method-to-measure-leg-length-discrepancy
#8
Estela Gomez Aguilar, Águeda Gómez Domínguez, Carolina Peña-Algaba, José M Castillo-López
BACKGROUND: The aim of this work is to introduce a useful method for the clinical diagnosis of leg-length inequality: distance between the malleoli and the ground (DMG). METHODS: A transversal observational study was performed on 17 patients with leg-length discrepancy. Leg-length inequality was determined with different clinical methods: with a tape measure in a supine position from the anterior superior iliac spine (ASIS) to the internal and external malleoli, as the difference between the iliac crests when standing (pelvimeter), and as asymmetry between ASISs (PALpation Meter [PALM]; A&D Medical Products Healthcare, San Jose, California)...
March 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28377642/computer-navigation-and-distal-femoral-reconstruction-in-the-oncologic-patient
#9
Brian T Palumbo, Eric Henderson, Justin Rizer, Douglas G Letson, David Cheong
OBJECTIVES: As adjuvant treatments for musculoskeletal malignancies improve expectations of preserved function increase. We questioned whether computer navigation for distal femoral reconstruction would improve outcomes. METHODS: Twenty oncology patients were reviewed after distal femoral reconstruction using navigation. Outcomes included local recurrence, implant revision, patient function, patellofemoral complications and leg-length inequality. RESULTS: Implant survivorship was 85% at 26 months...
June 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28241448/dual-mimu-pedestrian-navigation-by-inequality-constraint-kalman-filtering
#10
Wei Shi, Yang Wang, Yuanxin Wu
The foot-mounted inertial navigation system is an important method of pedestrian navigation as it, in principle, does not rely any external assistance. A real-time range decomposition constraint method is proposed in this paper to combine the information of dual foot-mounted inertial navigation systems. It is well known that low-cost inertial pedestrian navigation aided with both ZUPT (zero velocity update) and the range decomposition constraint performs better than those in their own respective methods. This paper recommends that the separation distance between the position estimates of the two foot-mounted inertial navigation systems be restricted by an ellipsoidal constraint that relates to the maximum step length and the leg height...
February 22, 2017: Sensors
https://www.readbyqxmd.com/read/27689506/erratum-to-assessing-reproducibility-for-radiographic-measurement-of-leg-length-inequality-after-total-hip-replacement-hip-int-2012-sep-oct-22-5-539-544
#11
(no author information available yet)
Erratum to: Hip Int. 2012 Sep-Oct;22(5):539-544. Assessing reproducibility for radiographic measurement of leg length inequality after total hip replacement. McWilliams AB, Grainger AJ, O'Connor PJ, Redmond AC, Stewart TD, Stone MH. PMID: 23100154 DOI:10.5301/HIP.2012.9751 [PubMed - indexed for MEDLINE] In the article "Assessing reproducibility for radiographic measurement of leg length inequality after total hip replacement", by Anthony B. McWilliams, Andrew J. Grainger, Philip J. O'Connor, Anthony C. Redmond, Todd D...
September 29, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27548584/complications-associated-with-epiphysiodesis-for-management-of-leg-length-discrepancy
#12
Marina R Makarov, Samuel H Dunn, Dustin E Singer, Karl E Rathjen, Brandon A Ramo, Chukwudi K Chukwunyerenwa, John G Birch
BACKGROUND: Epiphysiodesis is well-established surgical treatment for the management of leg length discrepancy (LLD) in children; however, a variety of complications may occur. This study evaluates the nature, rate, and potential risk factors of complications associated with epiphysiodesis in a large patient population treated in 1 institution. METHODS: We evaluated the medical and radiographic records of 863 children who had lower extremity epiphysiodesis to manage LLD between 1980 and 2011...
August 19, 2016: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/27217654/inequality-in-leg-length-is-important-for-the-understanding-of-the-pathophysiology-of-lumbar-disc-herniation
#13
Mehmet Sabri Balik, Ayhan Kanat, Adem Erkut, Bulent Ozdemir, Osman Ersagun Batcik
OBJECTIVE: Inequality in leg length may lead to to abnormal transmission of load across the endplates and degeneration lumbar spine and the disc space. There has been no study focusing on lumbar disc herniation (LDH) and leg length discrepancy. This subject was investigated in this study. MATERIALS AND METHODS: Consecutive adult patients with leg length discrepancy and low back pain (LBP) admitted to our department were respectivelly studied. RESULTS: A total number of 39 subjects (31 women and eight men) with leg length discrepancy and LBP and 43 (25 females and 18 males) patients with LBP as a control group were tested...
April 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27106260/anterior-total-hip-arthroplasty-using-a-metaphyseal-bone-sparing-stem-component-alignment-and-early-complications
#14
Mohammed M Ahmed, Thomas J Otto, Berton R Moed
BACKGROUND: Limited-incision total hip arthroplasty (THA) preserves hip abductors, posterior capsule, and external rotators potentially diminishing dislocation risk. However, potential complications also exist, such as component malposition. Specific implants have been manufactured that enhance compatibility with this technique, while preserving metaphyseal bone; however, little data exists documenting early complications and component position. The purpose was to evaluate primary THA using a curved, bone-sparing stem inserted through the anterior approach with respect to component alignment and early complications...
April 22, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27053972/lengthening-over-an-existing-intramedullary-nail-in-cases-of-post-traumatic-femoral-shortening-technical-note-case-series-study
#15
Achilleas Boutsiadis, Eirini Iosifidou, Xilouris Nikolaos, Ippokratis Hatzokos
BACKGROUND: Intramedullary (IM) nailing is the method of choice for the treatment of most femoral shaft fractures. However, despite successful solid union, great initial fracture comminution can lead to significant leg length discrepancy affecting normal gait mechanics. Femoral osteotomy and distraction osteogenesis over the pre-existing IM nail could restore this limb inequality. METHODS: Five patients with an average post-traumatic femoral shortening of 3.83 cm were presented in our department with the nail in situ...
2016: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/26673427/severe-pelvic-obliquity-affects-femoral-offset-in-patients-with-total-hip-arthroplasty-but-not-leg-length-inequality
#16
Xiaoxiao Zhou, Qi Wang, Xianlong Zhang, Yunsu Chen, Xiaochun Peng, Yuanqing Mao, Yang Yang, Beigang Fu, Xiuhui Wang, Tingting Tang
Leg-length inequality is an extensively studied complication of total hip arthroplasty in normal patients. However, few studies have focused on the pelvic obliquity of coronal pelvic malrotation. We hypothesized that pelvic obliquity with a fixed abduction/adduction contracture deformity of the hip may intraoperatively affect the release of soft tissues, ultimately resulting in a leg-length inequality. This study also investigated whether the femoral and vertical offsets of total hip arthroplasty were correlated with pelvic obliquity...
2015: PloS One
https://www.readbyqxmd.com/read/26613631/complications-in-leg-lengthening-using-an-ilizarov-external-fixator-and-intramedullary-alignment-in-children-comparative-study-during-a-fourteen-year-period
#17
COMPARATIVE STUDY
Bojan Bukva, Goran Vrgoč, Ivan Rakovac, Siniša Dučić, Joško Sindik, Miran Čoklo, Marin Marinović, Bore Bakota
BACKGROUND: The purpose of this retrospective study was to evaluate the complications associated with leg lengthening in children treated with the Ilizarov external fixator (IEF) and compare them between two groups of patients: one group was treated using an IEF alone and the other group was treated using an IEF in association with intramedullary alignment (IA). PATIENTS AND METHODS: The study was performed at the University Children's Hospital in Belgrade, Serbia during a fourteen-year period (from 2000 to 2014)...
November 2015: Injury
https://www.readbyqxmd.com/read/26109159/pelvic-reference-selection-in-patients-with-unilateral-crowe-type-iv-ddh-for-measuring-leg-length-inequality
#18
COMPARATIVE STUDY
Yanbo Zhang, Fei Chang, Chenyu Wang, Modi Yang, Jincheng Wang
We identified the presence of deformities in the affected pelvis of unilateral Crowe type IV DDH patients, and if present, whether the teardrop and ischial lines were parallel with the sacral base line. We also verified whether the sacral base line provided a better pelvic landmark than the teardrop line for determining leg length inequality (LLI). After leveling the pelvis by using a block to lift the short leg, standard anterior-posterior full-length radiography was performed on 10 patients and 10 healthy volunteers as controls...
September 2015: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/25931709/the-effect-of-simulating-a-leg-length-discrepancy-on-pelvic-position-and-spinal-posture
#19
Yu-Jeong Kwon, Minyoung Song, Il-Hun Baek, Taesik Lee
[Purpose] The purpose of this study was to examine how a leg-length discrepancy contributes to the pelvic position and spinal posture. [Subjects and Methods] A total of 20 subjects (10 males, 10 females) were examined during different artificially created leg-length inequalities (0-4 cm) using a platform. The pelvic tilt and torsion and the sagittal deviation of the spine were measured using the rasterstereographic device formetric 4D. [Results] Changes in platform height led to an increase in pelvic tilt and torsion, while no changes in the spinal posture were found with the different simulated leg-length inequalities...
March 2015: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/25907394/small-diameter-acetabulum-and-femoral-head-in-total-hip-arthroplasty-for-developmental-dysplasia-of-the-hip-with-no-femoral-osteotomy
#20
Dionysios-Alexandros Verettas, Pelagia Chloropoulou, Konstantinos Xarchas, Georgios Drosos, Athanasios Ververidis, Konstantinos Kazakos
We present the results of 66 total hip arthroplasties in 62 patients of mean age 46 years (24-74 years), with developmental dysplasia of the hip. In all cases the centre of rotation of the new hip was positioned at the site of the true acetabulum. In all patients cementless press fit acetabular components of small diameter (42-44 mm) were used, articulating exclusively with a 22.25 mm modular metal femoral head, without the use of bone grafts or shortening osteotomies of the femur. Despite the use of small diameter femoral heads the rate of dislocation was 3%...
May 2015: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
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