Biomechanics

Human movement science

Biomechanics of propulsion: Implications for AFOs

For many patients, the ability of an ankle foot orthosis to enhance propulsion is key to improving gait efficiency and reducing fatigue. But experts are only beginning to understand the biomechanical complexities that influence … READ MORE

Step up your workout with Nordic walking

Trekking poles, traditionally used in Nordic walking, are almost everywhere walkers walk today – and with good reason: Using them burns more calories and has other benefits that regular walking doesn’t offer. By Sean Kelley, … READ MORE

Charcot-Marie-Tooth: AFO mechanics and gait patterns

Patients with Charcot-Marie-Tooth disease showing the greatest increase in speed appear to respond to and utilize the energy storing and releasing properties of a carbon fiber composite ankle foot orthosis differently from those who … READ MORE

Foot instability in Down syndrome linked to hallux valgus, narrow shoes

Regular foot checks may curb problems. A recent study published in the Journal of Foot and Ankle Research found that hallux valgus and too-narrow footwear contribute to foot-specific disability in children with Down syndrome. … READ MORE

Wearable chair for surgeons

Here is a wearable chair that allows surgeons to perform long surgeries with less muscle fatigue. It supports a half-sitting posture and reduces the burden of standing for hours each day. Cool Wearables. Archelis wearable chair helps … READ MORE

Panel discusses nonoperative treatment of knee osteoarthritis

Clinical practice guidelines for knee osteoarthritis (OA) were developed and published by the American Academy of Orthopaedic Surgeons (AAOS) in 2008. The guidelines have been helpful and have stimulated discussion among physicians as … READ MORE

OA bracing: Spin class

Rotation may be key to pain relief. Research from the Hospital for Special Surgery in New York City confirms that the kinetic effects of osteoarthritis knee bracing are in fact related to bracing’s effects on knee pain—but not in … READ MORE

Biomechanics play key role in knee osteoarthritis

Researchers and clinicians often point to biomechanical elements, particularly aberrant biomechanical forces and pathological responses to them, as key factors in osteoarthritis (OA) disease progression. However, little is known about … READ MORE

When not to fix: Thoughts of an orthopaedic surgeon

One driving force that is emerging in our high-tech, low-touch approach to healthcare is our tendency to rely far too much on technology such as MRI findings, and too little on our physical exam findings and on the story our patient … READ MORE

Conservative biomechanical strategies for knee osteoarthritis

Knee osteoarthritis (OA) is one of the most prevalent forms of this disease, with the medial compartment most commonly affected. The direction of external forces and limb orientation during walking results in an adduction moment that … READ MORE

Knee brace reduces damage, pain in osteoarthritis

For the first time, a scientific study has shown that a simple slip-on knee brace reduces bone marrow lesions and pain associated with osteoarthritis. Alice Goodman, Medscape Multispecialty October 31, 2013 “There is a pressing … READ MORE

Tomasz Bugajski, PhD Candidate, Biomedical Engineering

Tomasz’s Master’s thesis was focused on the Calgary Protocol for the Treatment of Pectus Carinatum, developed by Dr. David S. Sigalet, General Surgery Clinic at the Alberta Children’s Hospital. This method of … READ MORE

Bracing results in significant improvements in Pectus carinatum

Comfort is the key because the brace is worn continuously to provide compression during regular daily activity. Patients are more compliant with the Braceworks PC brace and encouraging results are often apparent early in treatment. … READ MORE

Pectus carinatum treatment in Canada: current practice

The Calgary Protocol: bracing for Pectus carinatum BACKGROUND Multiple treatment options currently exist for the correction of pectus carinatum (PC). We performed a survey of Canadian pediatric surgeons to define current practices. … READ MORE

Do elite athletes have an anti-aging secret in their muscles?

Elite runners do not experience the muscle weakening associated with aging as non-athletes do. A new study published in the American Journal of Physiology—Cell Physiology examines if their superb fitness is because their muscles … READ MORE

Low intensity intervention yields modest benefit in knee and hip osteoarthritis

The combined patient and provider intervention resulted in modest improvement in self-reported physical function in patients with hip and knee osteoarthritis. Allen, Yancy, Bosworth, et al. The Lantern Path in the woods of Hakone, … READ MORE

Equinus: Its surprising role in foot pathologies

Treatment for equinus should be aimed at increasing ankle joint dorsiflexion to facilitate normal gait mechanics. In most cases, non-spastic forms of equinus tend to be more treatable and easily corrected than the spastic … READ MORE

Gait retraining improves symptoms of knee OA

Walking differently to reduce knee pain. A number of different gait modifications have been demonstrated to significantly reduce the knee adduction moment in patients with knee osteoarthritis (OA). Now research suggests gait … READ MORE

Out on a limb: Hockey gets hip to FAI

Despite evidence of significant lower extremity injury risks associated with ice hockey, even at youth levels, preventing those types of injuries has never been a priority in that sport. But that may be starting to change. Young ice … READ MORE

Ankle motion may predict who will respond to lateral wedge insoles

Lateral wedge insoles are a potential simple treatment for medial knee osteoarthritis (OA) patients by reducing the external knee adduction moment (EKAM). However in some patients, an increase in their EKAM is seen. Understanding the … READ MORE

OA knee braces: Buying time

Long-term compliance data raise issues. A study published in the August issue of Orthopedics found that although unloader braces effectively relieve pain and improve function in patients with unicompartmental knee osteoarthritis, … READ MORE

Hot tip for knee OA: Foam rollers reduce quadriceps soreness

Canadian and Australian researchers found large decreases in quadriceps pain 24 and 48 hours after foam rolling. 4 foam roller exercises to relieve pain in 10 minutes. By Lois Wingerson, Physicians Practice November 26, 2014 The … READ MORE

Variation in use of non-surgical treatments among osteoarthritis patients in orthopaedic practice in the Netherlands

While most recommended non-surgical treatments for OA were used frequently as single therapy, the combination is used in only a small percentage of OA patients who received a THA or TKA. With regard to wild animals, dogs should also … READ MORE

Hip-abductor strengthening protocol for runners with patellofemoral pain syndrome

Reed Ferber, PhD. Knee Injury Study Investigator, Alberta Innovates – Health Solutions. Running Injury Clinic, University of Calgary. YouTube Mar 18, 2011 A 3-week hip-abductor muscle-strengthening protocol was effective in … READ MORE

Patellar instability in children and adolescents

Patellar instability is a common occurrence in the skeletally immature patient population, and multiple treatment options exist. Abstract [1] Non-operative treatment is appropriate for patients without osteochondral injuries and … READ MORE

Patellofemoral tracking syndrome

The beating heart of the conventional wisdom about patellofemoral pain is mostly nonsense. The idea of patellofemoral tracking syndrome is that the kneecap may not slide evenly as your knee flexes and extends, because of muscular … READ MORE

Solving the curious case of runner’s knee

Biomechanics research reveals potential new ways to treat one of the most common running injuries. “What we found was that, regardless of which orthotic volunteers received, there was a relationship between change in biomechanics … READ MORE

Lateral wedge insoles not associated with improvement of knee pain in osteoarthritis

“These results suggest that compared with control interventions, lateral wedges are not efficacious for the treatment of knee pain in persons with medial knee osteoarthritis.” CHICAGO – Although a pooling of data from 12 studies … READ MORE

The effect of knee orthoses on gait in medial knee compartment osteoarthritis

Knee osteoarthritis (OA) is one of the most common joint disorders. Epidemiological studies have demonstrated that approximately 6% of the population aged 30 years or older and 12% of the population aged 65 years or older have knee … READ MORE

Internet-connected brace designed to help seniors avoid falls

Clinicians and patients can view progress easily, using an app or a web dashboard, to assess and adjust for improved mobility and self-sufficiency. Ben Coxworth, Gizmag November 10, 2015 Falls can be devastating for the elderly, … READ MORE

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