Category Archives: Feature Article
Ankle braces help prevent injury by restricting motion, but those restrictions don’t necessarily result in negative effects on athletic performance. Evidence suggests that while agility may be affected with use of an ankle brace, vertical jump and balance skills may not.
By Jatin P. Ambegaonkar, PhD, ATC, OT, CSCS; Nelson Cortes, PhD; and Shruti J. Ambegaonkar, MS, PT
Studies assessing the relative functional benefits of limb salvage and amputation for lower extremity bone and soft tissue tumors have produced inconsistent results, but the range of subjective and objective tests used in those studies may have influenced the findings.
By Lucy Kupersmith, BA, and Jeremy S. Somerson, MD
For the majority of evolutionary history, runners were either barefoot or wore minimalist footwear lacking the cushioning of today’s running shoes. Barefoot or minimally shod runners demonstrate differences1 in kinematics and impact forces compared with those wearing modern running shoes, and some research suggests barefoot running may confer biomechanical advantages over more cushioned footwear.
By Erik M. Haniuk, BS; LTC Steven J. Svoboda, MD; Karen Y. Peck, MEd, ATC; Kenneth L. Cameron, PhD, MPH, ATC; and LTC Brett D. Owens, MD
Hamstring injuries that occur during sprinting are a significant concern in football, not just because of the frequency with which they occur, but also because they are notoriously difficult to rehabilitate, which underscores the need for effective prevention through targeted exercise programs.
By Charles D. Kenyon, MS, RSCC, and Marcus C.C.W. Elliott, MD
Not all patients with diabetes and not all ulcerated limbs are amenable to salvage. When salvage is not an option, amputation can help improve patient function, but a number of factors should be considered when deciding how much of the foot—if any—should be retained.
By Cary Groner
A delay in the activation of the peroneus longus and peroneus brevis muscles is thought to contribute to the risk of inversion ankle sprain. New research suggests that ankle taping, in addition to providing mechanical stability, also helps reduce this peroneal latency.
By Adam Knight, PhD, and Wendi Weimar, PhD
Evidence suggests that the prevalence and symptom severity of knee osteoarthritis are greater in African-American patients, underscoring the need for lower extremity practitioners to implement effective strategies for disease prevention and management in this patient population.
By Kelli D. Allen, PhD
A patient presenting with both end-stage knee osteoarthritis and a painful foot-ankle deformity is not uncommon, but the medical literature offers practitioners little guidance as to which condition should be managed first or whether they should be addressed simultaneously.
by Michael S. Pinzur, MD, and William Hopkinson, MD
Advances in communications technology now make it possible for an expert in one location to assess a diabetic foot ulcer in a patient who is miles away. But telehealth efforts face a number of hurdles, the most daunting of which may be patient privacy.
By Emily Delzell
When prescribing an ankle foot orthosis or neuroprosthesis for a patient with acute drop foot following stroke, lower extremity practitioners should consider the device’s potential effects on neural plasticity and motor relearning in addition to its potential effects on gait.
By Chad Lairamore, PhD, PT, CBISt
Newly published proceedings of an interdisciplinary osteoarthritis summit hosted by the Hospital for Special Surgery explore how researchers are working to understand the complexities of the disease and break down the barriers facing the development of new interventions.
By Cary Groner
Barefoot training and balance training have each been effective in studies of runners, but combining the methods could lead to even better results.
By Emily Splichal, DPM, MS, CPT
Demonstrated associations between impaired proprioception and knee osteoarthritis suggest some interventions that help relieve painful symptoms in patients with knee osteoarthritis , such as exercise and bracing, do so by positively affecting joint position sense.
By Barbara Boughton
Hospitals with multidisciplinary diabetic foot care programs have found that adding vascular surgeons to the team makes their amputation prevention efforts more effective, but also adds an extra layer of challenges in terms of coordination and communication.
By Cary Groner
Not all patients with chronic ankle instability develop ankle osteoarthritis, but evidence suggests the two conditions are related, which in turn suggests that ankle sprain prevention and management could help reduce ankle replacement rates.
By Larry Hand
Acute compartment syndrome can develop after open or closed tibial fractures, even those that appear to be benign. Early diagnosis of increased compartmental pressure and timely surgical intervention can prevent adverse outcomes including nerve injury and muscle necrosis.
By Langdon A. Hartsock, MD, and William R. Barfield, PhD Continue reading
Most conservative measures to reduce knee adduction moment in patients with knee osteoarthritis involve altering proximal biomechanics, but research suggests that similar kinetic changes and pain relief can be achieved with the use of wedged foot orthoses.
By Emily Delzell
Recent interest has focused on the use of Nordic hamstring strengthening exercises to prevent hamstring injuries in athletes, but evidence also supports eccentric exercise for managing tendinopathy and for prevention and rehabilitation of anterior cruciate ligament injury.
By Daniel Lorenz, DPT, PT, ATC/L, CSCS
Misalignment between the mechanical joint of an articulated AFO and the corresponding anatomical joint can significantly affect the device’s mechanical properties, particularly resistance and stiffness, which can impair AFO effectiveness and negatively affect proximal joints.
By Fan Gao, PhD, and Susan Kapp, MEd, CPO, LPO, FAAOP
Golfers demonstrate significant asymmetries between hips with regard to rotational range of motion and rotational velocity, which can contribute to the development of conditions including low back pain, femoroacetabular impingement, and hip labral degeneration.
By Heather Gulgin, PhD, ATC
Survey results suggest that at least one-third of individuals at risk for foot pain or diabetic foot ulcers are wearing shoes that are at least one size too big or too small, which can further increase those risks. Proper shoe fit and foot health start with patient education.
By Stephanie Swensen, BSc, and Ran Schwarzkopf, MD, MSc
This study found that closed basket-weave ankle taping significantly affects ankle range of motion and time to peak vertical ground reaction force, which can have implications higher up the kinetic chain that appear to vary from one individual to another.
By Matthew L. Santos-Vitorino, MS, ATC, LAT, Sue Shapiro, EdD, ATC, LAT, Kathy Ludwig, PhD, and Claire Egret, PhD
New research suggests that serious injuries occur as frequently in off-road motorcycle racing as they do in football, but such injuries occur less frequently in riders who wear knee braces.This may be why, although it is not well studied, knee bracing is widespread among off-road motorcycle riders.
By Wesley M.Gladin, BS, Robert A.Cates, BA, and Mark S.Sanders, MD, FACS