A team of researchers from China, Singapore, and New Zealand built a computer model to examine the role of ankle motion in anterior cruciate ligament (ACL) injury as related to single leg landing. Single-leg landing is an essential skill in sports such as basketball, soccer, and volleyball.

New University of British Columbia research analyzing actual pedestrian interactions with vehicles on busy streets concludes that distracted pedestrians face higher safety risks compared with undistracted road users. Previous studies have speculated that distracted pedestrians, such as those texting and talking on the phone, are at higher risk of being hit by a car due to…

This marathoner’s performance has declined since his record-breaking marathon in 2018 primarily due to a reduction in VO,max. His max HR changed minimally, but his peak O2 pulse decreased, suggesting that his maximal stroke volume and/or arteriovenous 02 difference decreased. These changes likely reflect primarily age-related effects.

Recent research has found that strengthening hip joint stability can considerably affect foot mechanics. The purpose of this study was to determine the effect of short foot exercises (SFEs), combined exercises (CEs), and SFEs with isometric hip abduction (IHA) on navicular drop (ND), static parameters (SP), and postural sway in women with flat foot (FF).

A small study of 25 boys (age 10-12y) with flexible flat foot (FF) sought to understand the impact of intrinsic- versus extrinsic-first corrective exercises on on muscle morphometry and navicular drop (ND). The boys underwent a 12-week exercise program that shifted focus midway. The results were significant. Leading with intrinsic exercises led to sustained improvement throughout the…

Metal hypersensitivity (MH) is a controversial topic with limited evidence. It is more commonly observed in failed arthroplasties. The most common metal involved in MH is nickel. Orthopaedic implants contain nickel because of its ability to provide increased strength and durability. MH is a type IV hypersensitive reaction.

In a study that looked at the data on more than 18,000 patients, researchers found that patients who have a self-reported nickel allergy can be advised that, on average, their clinical outcome scores will improve similarly to patients who do not have a self-reported nickel allergy, and revision rates will be similar.

In this longer-term follow-up of a limited cohort (48 patients/50 ankles, average age at index surgery: 64 years), Salto Talaris fixed-bearing total ankle arthroplasty demonstrated good long-term survival (Kaplan-Meier estimated survivorship was 84.2%) with relatively low rates of revision or other complications. Patient-reported outcome and range of motion measures revealed good stability.

Osteoarthritis of the first metatarsophalangeal joint (MTPJ) is a common forefoot problem affecting patients in later years. It leads to pain, gait problems, and difficulty with activities of daily living. Treatment is controversial and varies according to patient symptoms and surgeon preference. Arthrodesis remains the gold standard but it has its own complications.