Ankle

The main objective was to investigate if the cumulative load of the lower limbs, defined as the product of external load and step rate, could be predicted using spatiotemporal variables gathered with a commercially available wearable device in running. Therefore, thirty-nine runners performed two running tests at 10 and 12 km/h, respectively. Spatiotemporal variables (step rate, ground contact time and vertical oscillation) were collected using a commercially available wearable device. Kinetic variables, measured with gold standard equipment (motion capture system and instrumented treadmill) and used for the calculation of a set of variables representing cumulative load, were peak vertical ground reaction force (peak vGRF), vertical instantaneous loading rate (VILR), vertical impulse, braking impulse, as well as peak extension moments and angular impulses of the ankle, knee and hip joints...

OBJECTIVE: Diabetic foot ulcer (DFU) is a serious chronic complication leading to disability and death in patients suffering from diabetes. Currently, there is no effective marker for its early diagnosis. The aim of this study is to analyze the difference of circRNA expression profiles between DFU and normal human wounds (NHW) and to screen serum biomarkers for the early diagnosis of DFU. MATERIALS AND METHODS: Differentially expressed circRNAs were screened by bioinformatics analysis, using GSE114248 chip data downloaded from GEO database, including 5 pairs of tissue samples from DFU patients and NHW cases...

PURPOSE: In this study, we performed a comparison between open calcaneoplasty through transtendinous approach and endoscopic calcaneoplasty for Haglund's disease. METHODS: A retrospective review was performed of patients who had undergone either a calcaneoplasty with transtendinous approach or endoscopic for Haglund's disease from three centres. Inclusion criteria were patients with Haglund's disease confirmed radiographically, neutral alignment of the hindfoot and at least one year of follow-up...

The estimation of the human ankle's mechanical impedance is an important tool for modeling human balance. This work presents the implementation of a parameter-estimation approach based on the State-Augmented Extended Kalman Filter (AEKF) to infer the human ankle's mechanical impedance during quiet standing. However, the AEKF Filter is sensitive to the initialization of the noise covariance matrices. In order to avoid a time consuming trial-and-error method and to obtain a better estimation performance, an algorithm based on Genetic Algorithms (GA) is proposed for tuning the measurement noise Rk and process noise covariances Q of the Extended Kalman filter (EKF)...

Background: The maintenance of deformity in the ankle and hindfoot after correction of knee deformity following knee arthroplasty may cause abnormal tension in the knee and patient dissatisfaction. The aim of this study was to determine the effect of knee arthroplasty on the hindfoot alignment in patients with severe genu varum and valgum. Methods: A total of 84 patients with primary osteoarthritis, were enrolled in the study. The knee deformity was measured using a long leg film before surgery...

Background: The lymph vessels from the dorsum and the medial ankle ascending to the medial side of the thigh toward the inguinal lymph nodes can be observed by the linear flow using indocyanine green near-infrared lymphography (ICGL). Although anatomical studies have shown the widespread existence of lymphatic vessels throughout the body, ICGL shows little linear flow. We herein report our findings of the course of lymph vessels in healthy lower limbs. Methods: The unaffected lower limbs of 14 patients who underwent lymphaticovenular anastomosis were evaluated for this study...

BACKGROUND/OBJECTIVES: Arterial stiffness and endothelial dysfunction are 2 of the independent predictors for cardiovascular disease, while Acanthopanax senticosus Harms (ASH) is a traditional medicinal plant that can improve cardiovascular health. This study aimed to investigate the efficacy of the fruit of ASH on vascular function in apparently healthy subjects. SUBJECTS/METHODS: A 12-week, randomized, double-blind, placebo-controlled design, consisting of healthy adults with at least 2 of the following 3 conditions: borderline high blood pressure (BP; 120 mmHg ≤ systolic BP ≤ 160 mmHg or 80 mmHg ≤ diastolic BP ≤ 100 mmHg), smoking (≥10 cigarettes/day), and borderline blood lipid levels (220 ≤ total cholesterol ≤ 240, 130 ≤ low density lipoprotein cholesterol ≤ 165, or 150 ≤ triglyceride ≤ 220 mg/dL)...

Isokinetic muscle strength test implemented by the Biodex system is a method used for evaluating muscle function that has been applied clinically in the field of sports and rehabilitation medicine. However, information on its application on Haglund's deformity remain insufficient. Therefore, the present study examined the effectiveness of the muscle strength test using the Biodex system in evaluating the recovery of athletic capacity in patients with Haglund's deformity following endoscopic surgery. In total, 34 patients treated by the authors from June 2012 to November 2018 at Peking University Third Hospital (Beijing, China) were included...

Purpose: This study was conducted to investigate the relationships between arterial stiffness, frailty and fall-related injuries among community-dwelling older adults. Materials and Methods: A cross-sectional study of a random sample of older adults aged 60 years and older was conducted. Main study parameters: arterial stiffness was measured by the determining the cardio-ankle vascular index (CAVI); Frailty status was defined using a 7-item frailty screening scale, developed in Russia...

Reactive arthritis (ReA) is typically preceded by sexually transmitted disease or gastrointestinal infection. An association has also been reported with bacterial and viral respiratory infections. Herein, we report the first case of ReA after the he severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. This male patient is in his 50s who was admitted with COVID-19 pneumonia. On the second day of admission, SARS-CoV-2 PCR was positive from nasopharyngeal swab specimen. Despite starting standard dose of favipiravir, his respiratory condition deteriorated during hospitalisation...

OBJECTIVES: To investigate the interaction of ankle-foot complex and hip joint factors with Achilles Tendinopathy (AT) occurrence in recreational runners. DESIGN: Cross-sectional. SETTING: Research Laboratory. PARTICIPANTS: 51 runners, 26 healthy and 25 with AT. MAIN OUTCOMES MEASURES: Shank-forefoot alignment (SFA), weight bearing lunge test (WBLT), passive hip internal rotation (IR) range of motion (ROM), hip external rotators (ER) and ankle plantar flexors (PF) isometric strength...

BACKGROUND: Prosthetic feet are available in a range of stiffness categories, however, there is limited evidence to guide optimal selection during prosthetic foot prescription. The aim of this study was to determine the effect of commercial prosthetic foot stiffness category on foot-ankle biomechanics, gait symmetry, community ambulation, and relative foot stiffness perception. METHODS: Participants were fit in randomized order with three consecutive stiffness categories of a commonly-prescribed prosthetic foot...

OBJECTIVE: Ankle brachial index (ABI) is widely used for the diagnosis of lower extremity artery disease (LEAD). The purpose of this prospective study was to validate the diagnostic ability and reproducibility of a four cuff automated oscillometric device vs. the Doppler method. METHODS: Patients with suspected LEAD or asymptomatic individuals at risk because of the presence two or more cardiovascular risk factors were enrolled. For each patient, Doppler and oscillometric ABI measurements were repeated by two observers to address intra- and interobserver reproducibility...

BACKGROUND: The interaction of functional and mechanical deficits in chronic ankle instability remains a major issue in current research. After an index sprain, some patients develop sufficient coping strategies, while others require mechanical support. This study aimed to analyze persisting functional deficits in mechanically unstable ankles requiring operative stabilization. METHODS: We retrospectively analyzed the functional testing of 43 patients suffering from chronic, unilateral mechanical ankle instability (MAI) and in which long-term conservative treatment had failed...

OBJECTIVE: This retrospective single-center study aimed to analyze immediate and follow-up results of using drug-coated balloons (DCBs) for treating peripheral arterial disease. METHODS: In this study, we identified a total of 75 patients who underwent DCB therapy at our institution. The ankle-brachial index (ABI) was measured before and after intervention. Intermittent claudication and whether there was healing of ulcers were determined by telephone. RESULTS: The cohort consisted of 56 men and 19 women aged 38 to 87 years (68 ± 12 years)...

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BACKGROUND: The open anterior approach to ankle arthrodesis offers a technique that provides several advantages for surgeons, such as easier visualization of the joint for deformity correction and preservation of the malleoli for potential future conversion to total ankle arthroplasty. The purpose of this study was to evaluate clinical, radiographic, and functional outcomes in a large series of patients undergoing open ankle arthrodesis via a fibular-sparing anterior approach. METHODS: A retrospective review was performed of patients undergoing primary ankle arthrodesis with a single fellowship-trained foot and ankle orthopedic surgeon between 2009 and 2017...

BACKGROUND: There is controversy regarding the effectiveness of postoperative antibiotics to prevent wound infection. Some surgeons still use a routine postoperative oral antibiotic regimen. The purpose of this study was to review a series of cases and document statistically any difference in infection rates and whether routine postoperative antibiotics in foot and ankle surgery are justified. METHODS: A retrospective chart review of 649 patients was performed who underwent elective foot and ankle surgery...

BACKGROUND: The Kidner procedure is performed to treat painful accessory navicular syndrome, with varying results. Recurrent pain remains a complication, and to date, there is a paucity of literature regarding the causes of recurrent pain and surgical outcomes of revision. METHODS: Twenty-one patients who underwent revision surgery for recurrent pain after the Kidner procedure were identified. All patients had their tendon inspected and treated, and all had a medial displacement calcaneal osteotomy...

This paper describes how to develop a practical new type of atherosclerosis detection device, which can realize real-time measurement and analysis of human atherosclerosis. According to the mechanism of human atherosclerosis, the design objectives of the system are formulated to determine the construction of the platform. The system calculates the pulse wave velocity by measuring the pulse wave of human fingers and toes, adds four blood pressure measurements to the system design, calculates the ankle-brachial index, and comprehensively measures and analyses the degree of human arteriosclerosis...