Raymond J Walls

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BACKGROUND Quadriceps femoris muscle (QFM) weakness is a feature of knee osteoarthritis (OA) and exercise programs that strengthen this muscle group can improve function, disability and pain. Traditional supervised resistance exercise is however resource intensive and dependent on good adherence which can be challenging to achieve in patients with(More)
BACKGROUND Supervised preoperative muscle strengthening programmes (prehabilitation) can improve recovery after total joint arthroplasty but are considered resource intensive. Neuromuscular electrical stimulation (NMES) has been shown to improve quadriceps femoris muscle (QFM) strength and clinical function in subjects with knee osteoarthritis (OA) however(More)
BACKGROUND AND PURPOSE Fomites are increasingly being recognised as a source of hospital-acquired infection. We have therefore assessed tourniquets and exsanguinators for the presence of bacterial pathogens in 1 elective and 2 trauma orthopedic hospitals. MATERIAL AND METHODS Swabs were taken prior to and after decontaminating these devices with 1 of 3(More)
BACKGROUND Overuse ankle injuries have been described in elite athletes and professional ballet dancers however the spectrum of injuries experienced by professional Irish dancers has not been defined. METHODS A troupe of actively performing dancers from an Irish-dance show were recruited (eight male, ten female; mean age, 26 years). The prevalence of(More)
BACKGROUND Reconstructing the ligamentous constraints of the medial arch associated with adult acquired flatfoot deformity remains a challenge. The purpose of this study was to test the efficacy of several reconstruction techniques of the medial arch. We hypothesized that an anatomic reconstruction of the spring ligament complex would correct the deformity(More)
BACKGROUND AND PURPOSE A tourniquet may potentiate rare and devastating arterial complications after total knee replacement (TKR) in patients with peripheral vascular disease (PVD). Most prior studies that evaluated peripheral arterial blood flow primarily used the ankle-brachial index (ABI). METHODS We assessed the prevalence and risk factors for PVD in(More)
BACKGROUND MRSA is a major economic and health issue internationally and as such is of particular importance in the appropriate management of orthopaedic patients. Bone, joint and implant infection can lead to unfavourable outcomes with a long protracted in hospital stay inevitable. The cost for the patient, the hospital and society are substantial. (More)
We have analysed the management and clinical outcome of a series of consecutive patients who had a total hip replacement and developed post-operative surgical site infection (SSI) with methicillin-resistant Staphylococcus aureus. The incidence of this infection was 1% over a period of five years. We studied SSI in 15 patients (16 infections) with a mean age(More)
Surgical correction of hindfoot varus is frequently performed with a lateral displacement calcaneal osteotomy. It has rarely been associated with iatrogenic tarsal tunnel syndrome in patients with pre-existing neurological disease. We report the first case of acute postoperative tarsal tunnel syndrome in a neurologically intact patient with post-traumatic(More)
BACKGROUND The purpose of this study was to assess the effect of insurance type (Medicaid, Medicare, and private insurance) on access to foot and ankle surgeons for total ankle arthroplasty. METHODS We called 240 foot and ankle surgeons who performed total ankle arthroplasty in 8 representative states (California, Massachusetts, Ohio, New York, Florida,(More)