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Leg Length Discrepancy clinical trials

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NCT ID: NCT03666975 Recruiting - Clinical trials for Leg Length Discrepancy

Can we Promote Bone Lengthening With Vibration Therapy?

Start date: January 28, 2017
Phase: N/A
Study type: Interventional

This research will assess whether vibration therapy can increase bone-growth in length of the shorter leg in children aged 6-12 years with pre-existing leg length difference (LLD) which is being treated with a heel-raise or orthotics. Children will be referred by orthopaedic and musculoskeletal clinics, physiotherapists and orthotists. Children will have monthly measurement of leg length (LL) over a 13 month period (4 months pre-treatment, 3 months treatment, 6 months post-treatment) using a portable Ultrasound-laser system which is safe, accurate, reproducible and validated against standing x-ray measurement. During the treatment phase they will be randomised to receive vibration therapy 3 times per week using a vibration platform at 30 Hz and very low amplitude of 0.4g (less than experienced when walking) or 30 Hz at 1.0 g (the same force as standing with the effect of gravity). The child will stand with the shorter leg on the platform and the longer leg on a stationary block for 15 minutes per treatment session. The aim is to assess the potential of this safe, non-invasive and potentially cost-effective method for levelling LL. If effective, the research could be extended in future to children with much larger LLD in whom it could potentially avoid the need for surgery and minimise long-term musculoskeletal disability.

NCT ID: NCT02260856 Recruiting - Clinical trials for Leg Length Discrepancy

A Randomized Controlled Trial of Leg Length Discrepancy Techniques

Start date: June 2015
Phase: N/A
Study type: Interventional

This is a randomized clinical trial of epiphysiodesis techniques: percutaneous transphyseal screw epiphysiodesis versus percutaneous drill epiphysiodesis for the correction of leg length discrepancy. Failed epiphysiodesis was selected as the primary outcome. Failed epiphysiodesis was defined as one or more of the following: development of angular deformity > 5°, revision epiphysiodesis, or growth inhibition < 70% of expected. EOS, low dose biplanar X-Ray, will be used to make all length measurements. Secondary outcomes assess mean growth at the physis following epiphysiodesis, in the subset of patients with bead implantation, fluoroscopy and operative times, length of stay, return to full weight bearing, as well as functional and quality of life outcomes. The following outcome scales will be used to measure pain (VAS), quality of life (PROMIS Pediatric Pain Interference Scale), and function (PROMIS Pediatric Mobility Scale, Pedi-FABS, and UCLA Activity Score). Each of these scales has been validated for use in children (Beyer, Denyes, & Villarruel, 1992; DeWitt et al., 2011; Fabricant et al., 2013; Novais et al., 2014; Varni et al., 2010a). We will also determine the cost associated with each technique and perform a cost-effectiveness analysis to establish which technique is preferred from a societal perspective.

NCT ID: NCT02095093 Recruiting - Hip Osteoarthritis Clinical Trials

An Intelligent Instrument for Improved Leg Length and Hip Offset Accuracy in Total Hip Arthroplasty

Start date: March 2014
Phase: N/A
Study type: Interventional

Leg length discrepancies following total hip arthroplasty have been associated with nerve palsies, gait abnormalities, and lower back pain. Leg length discrepancies are related to poorer functional outcomes and patient dissatisfaction. Failure to restore femoral offset following total hip arthroplasty has been linked to decreased range of motion and abductor muscle strength, impingement, limping, higher dislocation rates, increased polyethylene wear, and loosening of implants. Computer navigation has shown to improve the accuracy of leg length and hip offset during total hip arthroplasty. The investigators research objective is to prove the accuracy of the Intellijoint HIP™ system for determining leg length and hip offset. The investigators hypothesis was that Intellijoint HIP™, an imageless intraoperative intelligent instrument, could improve the accuracy of leg length and hip offset during primary total hip arthroplasty. The investigators plan to study this hypothesis in humans by comparing the leg length and hip offset discrepancies produced with Intellijoint HIP™ to the standard at the investigators institution, which is a pin and outrigger system.

NCT ID: NCT01625975 Completed - Clinical trials for Leg Length Discrepancy

Retrospective Eight Plate Study

Start date: July 2012
Phase:
Study type: Observational

Understanding bone growth and achieving bone deformity corrections re-mains one of the oldest challenges in paediatric orthopaedics. The purpose of this study is to investigate the clinical and biomechanical effects of implants for growth modulation in pediatric patients undergoing correction of leg length or deformities of the knee. The primary aim of the study is to assess outcome after growth modulation using the Eight plate (Orthofix) at the time of implant removal with regard to any Adverse Events (AE) related to the growth plates or implants under investigation. The secondary aims are to assess if the planned correction was achieved and if the achieved correction was maintained after implant removal. Furthermore, secondary aims include investigation of the number and type of revision surgeries, the proportions of any other local AE as well as any influencing factors for growth modulation.

NCT ID: NCT01087437 Recruiting - Clinical trials for Leg Length Discrepancy

Testing the Effect of Crustacean's Gastrolith Nutraceutical on Mineralization Rate During Distraction Osteogenesis

Start date: January 2011
Phase: Phase 1
Study type: Interventional

BACKGROUND: Distraction osteogenesis, the gradual lengthening of bones, is performed in order to equalize leg length discrepancy and correct skeletal deformities or to achieve greater height in short stature people. The femur and tibia are the bones most frequently lengthened. The surgery is currently performed at Hadassah Medical Center routinely by the pediatric orthopedic team utilizing a variety of external fixation devices. The procedure involves application of an external fixation device to the bone, creation of an osteotomy and gradual, controlled distraction of the bone fragments On the last week of the distraction phase and every month thereafter, patients will be provided with a monthly supply of gastrolith calcium in a sealed container (65 capsules of 500 mg each, provided by Amorphical). Starting on the first day of the last week of the distraction phase, during the entire consolidation phase until the external fixator is removed; adults will orally consume two (2) 500 mg capsules a day (total of 1 gr of gastrolith calcium). Children will be given 25 mg calcium per kg body weight up to the daily adult dose of 1000mg .

NCT ID: NCT00155545 Completed - Scoliosis Clinical Trials

Influence of Leg Length Discrepancy on the Spinal Shape and Biomechanics in Functional and Idiopathic Scoliosis Patients

Start date: September 2005
Phase: Phase 1
Study type: Interventional

The purposes of this study are to use motion analysis techniques to study the biomechanical interactions between the spine and the lower limbs in scoliosis patients with or without leg length discrepancy (LLD) during activity; to investigate the effects of correction of LLD: using foot orthosis on the functional scoliotic spinal curve and motion during functional activity; and to test whether idiopathic scoliosis without LLD can be improved by artificially creating a leg length discrepancy with a foot orthosis.