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Limb lengthening

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https://www.readbyqxmd.com/read/28342821/correction-of-axial-deformity-during-lengthening-in-fibular-hypoplasia-hexapodal-versus-monorail-external-fixation
#1
Antoine Chalopin, Loïc Geffroy, Sébastien Pesenti, Antoine Hamel, Franck Launay
INTRODUCTION: Childhood fibular hypoplasia is a rare pathology which may or may not involve limb-length discrepancy and axial deformity in one or more dimensions. The objective of the present study was to compare the quality of the axial correction achieved in lengthening procedures by hexapodal versus monorail external fixators. The hypothesis was that the hexapodal fixator provides more precise correction. MATERIAL AND METHODS: A retrospective multicenter study included 52 children with fibular hypoplasia...
March 22, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28297175/pelvic-breadth-and-locomotor-kinematics-in-human-evolution
#2
Laura Tobias Gruss, Richard Gruss, Daniel Schmitt
A broad pelvis is characteristic of most, if not all, pre-modern hominins. In at least some early australopithecines, most notably the female Australopithecus afarensis specimen known as "Lucy," it is very broad and coupled with very short lower limbs. In 1991, Rak suggested that Lucy's pelvic anatomy improved locomotor efficiency by increasing stride length through rotation of the wide pelvis in the axial plane. Compared to lengthening strides by increasing flexion and extension at the hips, this mechanism could avoid potentially costly excessive vertical oscillations of the body's center of mass (COM)...
April 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28261423/cementless-total-hip-arthroplasty-involving-trochanteric-osteotomy-without-subtrochanteric-shortening-for-high-hip-dislocation
#3
Soong Joon Lee, Jeong Joon Yoo, Hee Joong Kim
BACKGROUND: Total hip arthroplasty with subtrochanteric shortening osteotomy is widely performed for high hip dislocation. However, suboptimal leg length discrepancy correction and nonunion of the osteotomy site remain concerns. Although total hip arthroplasty using trochanteric osteotomy without subtrochanteric osteotomy was introduced, cemented implants have been more commonly used than contemporary cementless implants in this procedure. We evaluated the long-term results of cementless total hip arthroplasty with trochanteric osteotomy without subtrochanteric osteotomy for high hip dislocation...
March 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28251066/titanium-elastic-nailing-in-diaphyseal-femoral-fractures-of-children-below-six-years-of-age
#4
Fabrizio Donati, Giuseppe Mazzitelli, Marco Lillo, Amerigo Menghi, Carla Conti, Antonio Valassina, Emanuele Marzetti, Giulio Maccauro
AIM: To report the clinical and radiographic results of titanium elastic nail (TEN) in diaphyseal femoral fractures of children below age of six years. METHODS: A retrospective analysis of 27 diaphyseal femoral fractures in children younger than six years treated with TEN between 2005 and 2015 was conducted. Patients were immobilized in a cast for 5 wk and the nails were removed from 6 to 12 wk after surgery. Twenty-four cases were clinically and radiographically re-evaluated using the Flynn's scoring criteria, focusing on: Limb length discrepancy, rotational deformity, angulation, hip and knee range of motion (ROM), functional status, complications, and parent's satisfaction...
February 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28244924/humerus-lengthening-with-the-precice-internal-lengthening-nail
#5
Anton M Kurtz, S Robert Rozbruch
BACKGROUND: Deformity and growth arrest of the humerus in children may result as sequelae of proximal humerus fractures and unicameral bone cysts, or as complications of their treatment. As approximately 80% of the growth of the humerus arises from the proximal physis, the resultant upper limb-length discrepancy can be substantial. Benefits to lengthening the shortened arm have been previously demonstrated with the use of external fixation devices. To our knowledge, no reports have been published on the use of intramedullary implants for this purpose...
February 27, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28220260/three-stage-treatment-protocol-for-recalcitrant-distal-femoral-nonunion
#6
Ching-Hou Ma, Yen-Chun Chiu, Yuan-Kun Tu, Cheng-Yo Yen, Chin-Hsien Wu
INTRODUCTION: In this study, we proposed a three-stage treatment protocol for recalcitrant distal femoral nonunion and aimed to analyze the clinical results. MATERIALS AND METHODS: We retrospective reviewed 12 consecutive patients with recalcitrant distal femoral nonunion undergoing our three-stage treatment protocol from January 2010 to December 2014 in our institute. The three-stage treatment protocol comprised debridement of the nonunion site, lengthening to eliminate leg length discrepancy, deformity correction, stabilization with a locked plate, filling of the defect with cement spacer for inducing membrane formation, and bone reconstruction using a cancellous bone autograft (Masquelet technique) or free vascularized fibular bone graft...
February 20, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28194386/femur-lengthening-with-monoplanar-external-fixator-associated-with-locked-intramedullary-nail
#7
Henrique Paradella Alvachian Fernandes, Danilo Gabriel do Nascimento Silva Barronovo, Fabio Lucas Rodrigues, Marcos Hono
OBJECTIVE: This study aimed to demonstrate that the lengthening technique of an external fixator associated with locked intramedullary nail is an efficient method that decreases the duration of the external fixation and improves the rehabilitation period. METHODS: From January of 2005 to May of 2014, 31 patients with mean lower limb discrepancy of 5.31 cm were treated. The etiologies of the deformity were femur fracture sequelae, infection, hip development dysplasia, polio, and congenital short femur...
January 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28184364/tibial-lengthening-using-a-fixator-assisted-lengthening-plate-a-new-technique
#8
Haci Bayram Tosun, Ismail Agir, Seyitali Gumustas, Sancar Serbest, Abuzer Uludag, Suat Celik
BACKGROUND: There are many techniques that are used for limb lengthening. Lengthening a limb over a plate is an alternative choice used in children or when using an intramedullary nail is difficult. OBJECTIVES: In this study, we presented a new technique for tibial lengthening using a monolateral external fixator over a lengthening plate. MATERIALS AND METHODS: For tibial lengthening, a monolateral external fixator was attached to the composite bone model medially...
November 2016: Trauma Monthly
https://www.readbyqxmd.com/read/28148662/intra-articular-corrective-osteotomies-combined-with-the-ilizarov-technique-for-the-treatment-of-deformities-of-the-knee
#9
J Xu, Y Jia, Q Kang, Y Chai
AIMS: To present our experience of using a combination of intra-articular osteotomy and external fixation to treat different deformities of the knee. PATIENTS AND METHODS: A total of six patients with a mean age of 26.5 years (15 to 50) with an abnormal hemi-joint line convergence angle (HJLCA) and mechanical axis deviation (MAD) were included. Elevation of a tibial hemiplateau or femoral condylar advancement was performed and limb lengthening with correction of residual deformity using a circular or monolateral Ilizarov frame...
February 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28144605/limb-lengthening-using-the-precice-tm-nail-system-complications-and-results
#10
Ulrich Wiebking, Emmanouil Liodakis, Mohamed Kenawey, Christian Krettek
BACKGROUND: Three types of telescopic nails are mainly used for intramedullary limb lengthening nowadays. Despite some important advantages of this new technology (e.g. controlled distraction rate, not restricted availability, possibility to perform accordion maneuvers), few articles exist on clinical results and complications after lengthening with the PRECICE(TM) nail (Ellipse, USA). OBJECTIVES: The aim of the current study was to describe and analyze the complications associated with lengthening with the PRECICE(TM) nail...
December 2016: Archives of Trauma Research
https://www.readbyqxmd.com/read/28117253/comparison-of-four-methods-for-percutaneous-achilles-tendon-lengthening-a-cadaveric-study
#11
Li Chen, Xin Ma, Xu Wang, Jiazhang Huang, Chao Zhang, Chen Wang
Percutaneous Achilles tendon lengthening can result in Achilles tendon rupture. This complication has been controversially linked to torsion effects in the Achilles tendon. Routine percutaneous triple-hemisection techniques (group A), rotary triple-hemisection (group B), distal double-hemisection (group C), and proximal double-hemisection (group D) were compared in cadaveric specimens to provide insights into the mechanism of uneven incision lengthening and inadvertent Achilles tendon rupture. The degree of Achilles tendon torsion on various planes was measured in 20 lower limb pairs from fresh cadavers...
March 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28074440/distal-femoral-extension-and-shortening-osteotomy-as-a-part-of-multilevel-surgery-in-children-with-cerebral-palsy
#12
Matthias C M Klotz, Klemens Hirsch, Daniel Heitzmann, Michael W Maier, Sebastien Hagmann, Thomas Dreher
BACKGROUND: There are several reports describing an increase in anterior pelvic tilt after hamstring lengthening in children with cerebral palsy (CP). Distal femoral extension and shortening osteotomy (DFESO) is an alternative treatment for correction of fl exed knee gait, but investigations analyzing outcome and infl uence on adjacent joint are few in the literature. The purpose of this study was to analyze the influence of DFESO on knee and pelvis in children with CP. Furthermore, it was of interest if an additional patellar tendon advancement (PA) infl uences outcome...
December 23, 2016: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28053384/management-of-complex-femoral-nonunion-with-monorail-external-fixator-a-prospective-study
#13
Hemendra Kumar Agrawal, Mohit Garg, Balvinder Singh, Ashish Jaiman, Vipin Khatkar, Shailender Khare, Sumit Batra, Vinod Kumar Sharma
AIM: To evaluate 30 patients who underwent distraction osteogenesis with monorail external fixator for complex femoral nonunion. METHOD: Complex femoral nonunion includes infective non-union, gap nonunion, and limb-length discrepancy secondary to traumatic bone loss, which needs specialized treatment to ensure the functional integrity of femoral bone. 30 patients, including 28 male and 2 female (aged 22-62 years) patients, underwent surgical debridement followed by bone transport with monorail fixator...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28052378/comparison-of-limb-kinematics-between-collected-and-lengthened-medium-extended-trot-in-two-groups-of-dressage-horses-on-two-different-surfaces
#14
V A Walker, C A Tranquille, J R Newton, S J Dyson, J Brandham, A J Northrop, R C Murray
BACKGROUND: Dressage horses are often asked to work in lengthened paces during training and competition, but to date there is limited information about the biomechanics of dressage-specific paces. Preliminary work has shown increased fetlock extension in extended compared with collected paces, but further investigation of the kinematic differences between collected, medium and extended trot in dressage horses is warranted. OBJECTIVES: Investigation of the effect of collected versus medium/extended trot on limb kinematics of dressage horses...
January 4, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28042118/post-operative-neuropathy-after-total-hip-arthroplasty
#15
REVIEW
E P Su
Nerve palsy is a well-described complication following total hip arthroplasty, but is highly distressing and disabling. A nerve palsy may cause difficulty with the post-operative rehabilitation, and overall mobility of the patient. Nerve palsy may result from compression and tension to the affected nerve(s) during the course of the operation via surgical manipulation and retractor placement, tension from limb lengthening or compression from post-operative hematoma. In the literature, hip dysplasia, lengthening of the leg, the use of an uncemented femoral component, and female gender are associated with a greater risk of nerve palsy...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28040091/reconstruction-of-patellar-tendon-following-implantation-of-proximal-tibia-megaprosthesis-for-the-treatment-of-post-traumatic-septic-bone-defects
#16
Giorgio M Calori, Emilio Luigi Mazza, Luca Vaienti, Simone Mazzola, Alessandra Colombo, Luca Gala, Massimiliano Colombo
INTRODUCTION: Latest advances made in joint replacement implants allows reconstruction of entire limbs. These special prostheses or megaprostheses were originally designed for the treatment of severe oncological bone loss. Nowadays, however, the indications and applications of these devices are expanding to other orthopaedic and trauma clinical conditions. Since 2008 we have implanted 152 megaprostheses in non-oncological conditions: 87 were implanted for post-traumatic failures aseptic/septic (represented by complex non-unions and critical size bone defects); 26 total femur, 52 distal femur and 9 proximal tibia...
December 2016: Injury
https://www.readbyqxmd.com/read/28031510/use-of-a-magnetic-bone-nail-for-lengthening-of-the-femur-and-tibia
#17
Ozgur Karakoyun, Sami Sokucu, Mehmet Fatih Erol, Metin Kucukkaya, Yavuz Selim Kabukçuoğlu
PURPOSE: To report our experience with the PRECICE nail for limb lengthening in 23 patients. METHODS: Records of 15 female and 8 male patients aged 14 to 38 (mean, 23.6) years who underwent lengthening of the tibia (n=6) or femur (n=21) using the PRECICE nail were reviewed. The reasons for lengthening included trauma (n=7), hemihypertrophy (n=2), focal femoral deficiency (n=2), Ellis-van Creveld syndrome (n=1), hip septic arthritis sequelae (n=1), hereditary multiple exostosis (n=1), club foot sequela (n=1), congenital tibial pseudoarthrosis (n=1), fibrous dysplasia (n=1), idiopathic limb length discrepancy (n=7), and cosmetic (n=1)...
December 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28029668/titanium-elastic-nailing-system-tens-for-tibia-fractures-in-children-functional-outcomes-and-complications
#18
K M Kc, P Acharya, A Sigdel
INTRODUCTION: Closed reduction and cast application is still regarded as first line treatment for pediatric tibial fractures. Over the past few decades, management of pediatric tibial fractures has shifted more towards operative intervention because of quicker recovery, shorter rehabilitation period, less immobilization, lack of stiffness of adjoining joints, and less psychological impact to the children. Flexible intramedullary nails not only fulfill the above advantage but also maintain alignment and rotation...
October 2016: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/28009799/percutaneous-hamstring-lengthening-surgery-is-as-effective-as-open-lengthening-in-children-with-cerebral-palsy
#19
Alexander Nazareth, Susan Rethlefsen, Ted C Sousa, Nicole M Mueske, Tishya A L Wren, Robert M Kay
BACKGROUND: Surgical lengthening of the hamstrings is often performed to correct crouch gait in children with cerebral palsy (CP). Previous studies have demonstrated the effectiveness of open hamstring lengthening (oHSL) in improving knee extension static and dynamic range of motion; however, literature regarding percutaneous hamstring lengthening (pHSL) is limited. The purpose of this study was to investigate the effect of open versus pHSL for improving crouch gait and knee function in children with CP...
December 22, 2016: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/27990273/advances-in-the-management-of-osteosarcoma
#20
REVIEW
Stefan S Bielack, Stefanie Hecker-Nolting, Claudia Blattmann, Leo Kager
Osteosarcoma, a bone cancer most commonly seen in adolescents and young adults, is usually a high-grade malignancy characterized by a very high risk for the development of pulmonary metastases. High-grade osteosarcomas are usually treated by preoperative and postoperative chemotherapy and surgery, with a very limited number of active agents available. Rarer lower-grade variants such as parosteal and periosteal osteosarcoma or low-grade central osteosarcoma are treated by surgery only. Imaging to search for possible metastases focuses on the lung...
2016: F1000Research
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