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https://www.readbyqxmd.com/read/28731965/functional-outcomes-post-lisfranc-injury-transarticular-screws-dorsal-bridge-plating-or-combination-treatment
#1
Simon Lau, Catherine Guest, Marcus Hall, Mark Tacey, Samuel Joseph, Andrew Oppy
OBJECTIVE: To identify whether transarticular screws, dorsal bridging plates or a combination of the 2 result in the best functional outcome after Lisfranc injury. DESIGN: Case series. SETTING: Level one trauma center. PATIENTS: Fifty patients who underwent surgical fixation of Lisfranc injuries over a 6-year period were retrospectively reviewed. INTERVENTION: One of 3 treatment arms: transarticular screw fixation alone, dorsal bridge plating alone or a combination of dorsal bridge and transarticular screw fixation...
August 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28730921/kinematic-repeatability-of-a-multi-segment-foot-model-for-dance
#2
Sarah L Carter, Nahoko Sato, Luke S Hopper
The purpose of this study was to determine the intra and inter-assessor repeatability of a modified Rizzoli Foot Model for analysing the foot kinematics of ballet dancers. Six university-level ballet dancers performed the movements; parallel stance, turnout plié, turnout stance, turnout rise and flex-point-flex. The three-dimensional (3D) position of individual reflective markers and marker triads was used to model the movement of the dancers' tibia, entire foot, hindfoot, midfoot, forefoot and hallux. Intra and inter-assessor reliability demonstrated excellent (ICC ≥ 0...
July 21, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28728130/superficial-plantar-cutaneous-sensation-does-not-trigger-barefoot-running-adaptations
#3
M A Thompson, K M Hoffman
It has long been proposed that the gait alterations associated with barefoot running are mediated by alterations in sensory feedback, yet there has been no data to support this claim. Thus, the purpose of this study was to examine the role of superficial plantar cutaneous feedback in barefoot and shod running. METHODS: 10 healthy active subjects (6 male, 4 female); mass: 65.2+9.7kg; age: 27+7.1years participated in this study. 10 over-ground running trials were completed in each of the following conditions: barefoot (BF), shod (SHOD), anesthetized barefoot (ANEST BF) and anesthetized shod (ANEST SHOD)...
June 27, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28725271/normal-foot-loading-parameters-and-repeatability-of-the-footscan%C3%A2-platform-system
#4
Chao Xu, Xin-Xin Wen, Lu-Yu Huang, Lei Shang, Xi-Xia Cheng, Ya-Bo Yan, Wei Lei
BACKGROUND: The Footscan® platform system is one of the most commonly used clinical tools for the measurement of the foot pressure. The present study was designed to assess the repeatability of the system and identify the range of loading parameters observed in the normal foot. METHODS: Measurements were collected from 32 healthy participants, 15 females and 17 males, twice at an interval of 1 week. Peak pressure (PP), contact time (CT), contact area (CA), pressure-time integral (PTI), and maximum force (MaF) were recorded; these parameters were investigated in 10 areas of the foot: medial heel, lateral heel, midfoot, first to fifth metatarsals, hallux, and toes 2-5...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28714755/foot-and-ankle-kinematics-during-descent-from-varying-step-heights
#5
Emily E Gerstle, Kristian O'Connor, Kevin G Keenan, Stephen C Cobb
In the general population, one-third of incidences during step negotiation occur during the transition to level walking. Furthermore, falls during curb negotiation are a common cause injury in older adults. Distal foot kinematics may be an important factor in determining injury risk associated with transition step negotiation. The purpose of this study was to identify foot and ankle kinematics of uninjured individuals during descent from varying step heights. A seven-segment foot model was used to quantify kinematics as participants walked on a level walkway, stepped down a single step (heights: 5 cm, 15 cm, 25 cm) and continued walking...
July 17, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28714106/prevalence-and-distribution-of-sesamoid-bones-and-accessory-ossicles-of-the-foot-as-determined-by-digital-tomosynthesis
#6
Bon San Koo, Yoonah Song, Seunghun Lee, Yoon-Kyoung Sung, Il-Hoon Sung, Jae-Bum Jun
We previously reported that digital tomosynthesis (DTS) is a reliable tool for evaluating bony structures of the hand. The current study aimed to identify the prevalence and distribution of sesamoid bones and accessory ossicles of the foot using DTS and to compare the results to those of conventional radiography (CR). Foot images (DTS, 213; CR, 44) of 213 patients taken at a tertiary hospital were retrospectively reviewed. Sesamoid bones were identified in the metatarsaophalangeal (MTP), distal interphalangeal (DIP) and interphalangeal (IP) joints of the great (I), second (II), third (III), fourth (IV), and fifth (V) toes...
July 16, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28708955/nonweightbearing-radiographs-in-patients-with-a-subtle-lisfranc-injury
#7
Dong-Kyo Seo, Ho-Seong Lee, Ki Won Lee, Suk Kyu Lee, Sang-Bum Kim
BACKGROUND: A midfoot sprain can be easily missed because of minimal findings on initial radiographs, which are almost universally nonweightbearing. We investigated preoperative nonweightbearing plain radiographic images in patients who were found to have unstable subtle Lisfranc injuries. METHODS: We retrospectively reviewed 51 patients who were operated on between February 2004 and March 2015. Abnormal preoperative radiographic findings and intraoperative instability were compared...
July 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28696780/evaluation-of-the-effectiveness-of-toe-board-energy-absorbing-material-for-foot-ankle-and-lower-leg-injury-reduction
#8
John P Patalak, Joel D Stitzel
OBJECTIVE: Since 2000 numerous improvements have been made to the National Association for Stock Car Auto Racing, Incorporated (NASCAR®) driver restraint system, resulting in improved crash protection for motorsports drivers. Advancements have included seats, head and neck restraints (HNR), seat belt restraint systems, driver helmets and others. These enhancements have increased protection for drivers from severe crash loading. Extending protection to the driver's extremities remains challenging...
July 11, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28687865/-forefoot-relief-with-shoe-inserts-effects-of-different-construction-strategies
#9
H Baur, N Merz, A Muster, G Flückiger, A Hirschmüller
BACKGROUND: Shoe inserts and shoe modifications are used to reduce plantar peak pressure. The effects of different shoe inserts and shoe construction strategies for relief of the forefoot have not yet been sufficiently evaluated. PURPOSE: The aim of this study was to analyze the effects of shoe inserts and shoe construction strategies (e.g. metatarsal pad, forefoot cushioning and control) and shoe modifications (e.g. flexible or stiff) on the peak plantar pressure in the forefoot region...
July 7, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/28682674/free-flap-transfer-for-coverage-of-transmetatarsal-amputation-stump-to-preserve-residual-foot-length
#10
Hyung Min Hahn, Kwang Sik Jeong, Myong Chul Park, Dong Ha Park, Il Jae Lee
Surgical management of soft-tissue defects of the forefoot and midfoot caused by trauma or diabetic complications can be challenging because locoregional tissue is insufficient to provide adequate flap. This deficiency necessitates higher-level amputations, such as Chopart or even transtibial amputation, resulting in far more debilitating functional outcomes than are seen with partial foot amputation. The purpose of this study was to examine the surgical outcomes after transmetatarsal amputation and a free-flap transfer to preserve foot length...
March 2017: International Journal of Lower Extremity Wounds
https://www.readbyqxmd.com/read/28666050/open-navicular-dislocation-with-midfoot-dissociation-in-a-45-year-old-man
#11
Dean N Papaliodis, Timothy T Roberts, Maria Vanushkina, Shankar Das, Jordan Lisella, John DiPreta
Traumatic dislocation of an intact tarsal navicular is an uncommon injury. In this article, we report a case of open medial navicular dislocation in a 45-year-old man. The injury was managed with open reduction and stabilization with Kirschner wires within the acute period. Ten months after injury, the patient developed avascular necrosis of the navicular and exhibited progressive collapse of the medial midfoot. He underwent naviculocuneiform arthrodesis 1 year after the index surgery. Two years after fusion, he was pain-free and ambulating independently...
May 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28663624/the-effect-of-preemptive-ankle-block-using-ropivacaine-and-dexamethasone-on-postoperative-analgesia-in-foot-surgery
#12
Ashraf Elsayed Alzeftawy, Nabil Aly Elsheikh
BACKGROUND: Peripheral nerve blocks have become an increasingly popular form of anesthesia. Preemptive analgesia reduces central sensitization, postoperative pain, and analgesic consumption. Different additive has been used to prolong regional blockade and improve postoperative analgesia. AIM: This study was conducted to evaluate whether preemptive ankle block using combination of ropivacaine and dexamethasone would succeed in improving the postoperative analgesia after foot surgery in patients receiving general anesthesia...
April 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28657790/magnitude-and-spatial-distribution-of-impact-intensity-under-the-foot-relates-to-initial-foot-contact-pattern
#13
Bastiaan Breine, Philippe Malcolm, Veerle Segers, Joeri Gerlo, Rud Derie, Todd Pataky, Edward C Frederick, Dirk De Clercq
In running, foot contact patterns (rear-, mid- or forefoot contact) influence impact intensity and initial ankle and foot kinematics. The aim of the study was to compare impact intensity and its spatial distribution under the foot between different foot contact patterns. Forty-nine subjects ran at 3.2 m·s(-1) over a level runway while ground reaction forces (GRF) and shoe-surface pressures were recorded and foot contact pattern was determined. A four-zone footmask (forefoot, midfoot, medial and lateral rearfoot) assessed the spatial distribution of the vertical GRF under the foot...
June 28, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28656782/impact-of-generalized-joint-laxity-on-plantar-loading-patterns-in-young-females
#14
Elif Aydın, Ayfer Metin Tellioğlu, I Mran Kurt Ömürlü, Yasemin Turan
BACKGROUND: Generalized joint laxity is often associated with gait deviations. The aim of this study was to investigate the static and dynamic loading pattern of the foot with increasing joint mobility and to discuss the potential impact of this condition on the plantar loading patterns. METHODS: Seventy female participants between ages of 18 and 30 were included in this cross-sectional survey. The Beighton-Horan Joint Mobility Index scores were assessed and participants divided into 3 categories: no hypermobility (NH) group, scores 0 to 2; moderate hypermobility (MH) group, scores 3 to 4; distinct hypermobility (DH) group, scores 5 to 9...
June 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28650764/dorsal-fracture-dislocation-of-the-tarsal-navicularcase-report-and-review-of-a-rare-injury
#15
Isidro Jimenez, Juan Pedro Rodriguez-Alvarez, Ricardo Navarro-Navarro
Fracture-dislocations of the tarsal navicular are rare and highly complex injuries to the midfoot. The only published data on this type of fracture are clinical case reports. These injuries are normally caused by high-energy trauma, and their pathophysiology and most appropriate treatment remain unclear. We report a clinical case of a dorsal fracture-dislocation of the tarsal navicular bone associated with a medial swivel dislocation of the Chopart joint caused by a bicycle fall in a 20-year-old healthy man...
May 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28650759/evaluation-of-plantar-pressure-distribution-in-relationship-to-body-mass-index-in-czech-women-during-walking
#16
Kristína Tománková, Miroslava Přidalová, Zdenek Svoboda, Roman Cuberek
BACKGROUND: Excessive body weight seems to be a risk factor for foot loading. We sought to investigate the effect of different body mass index (BMI) levels on plantar pressure distribution during walking. METHODS: In total, 163 women aged 45 to 65 years (mean ± SD: age, 57.4 ± 5.3 years; BMI, 27.0 ± 5.3) participated in the study. The women were divided, on the basis of BMI, into a normal-weight, overweight, or obese group. The study used the four following plantar pressure parameters (PPPs): contact percentage, absolute pressure impulse, relative pressure impulse, and absolute peak pressure, which were recorded in ten foot regions using a pressure measurement system...
May 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28641159/a-model-to-calculate-the-progression-of-the-centre-of-pressure-under-the-foot-during-gait-analysis
#17
Melissa Gar Yee Louey, Anita Mudge, Elizabeth Wojciechowski, Morgan Sangeux
Pedobarography and the centre of pressure (COP) progression is useful to understand foot function. Pedobarography is often unavailable in gait laboratories or completed asynchronously to kinematic and kinetic data collection. This paper presents a model that allows calculation of COP progression synchronously using force plate data. The model is an adjunct to Plug-In-Gait and was applied to 49 typically developing children to create reference COP data. COP progressions were noted to spend 8% of stance behind the ankle joint centre, traverse lateral of the longitudinal axis of the foot through the midfoot for 76% of stance and finishing past the second metatarsal head on the medial side for 16% of stance...
June 10, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28634696/prominent-midfoot-involvement-in-children-with-enthesitis-related-arthritis-category-of-juvenile-idiopathic-arthritis
#18
Sanat Phatak, Namita Mohindra, Abhishek Zanwar, Amita Aggarwal
Foot involvement is common in juvenile idiopathic arthritis (JIA) but is often unrecognized and difficult to treat. This study was done to assess clinical and radiological involvement of the feet and its impact on function in Indian children with enthesitis-related arthritis (ERA). We enrolled consecutive children with ERA with disease duration of less than 5 years. All patients underwent clinical examination of the feet and filled the juvenile arthritis foot index (JAFI) questionnaire. Ultrasound (US) of foot joints and entheses and extremity magnetic resonance imaging (MRI) scan of one foot were done...
August 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28633771/relationship-of-cuboid-height-to-plantar-ulceration-and-other-radiographic-parameters-in-midfoot-charcot-neuroarthropathy
#19
Andrew J Meyr, Joshua A Sebag
The objective of the present investigation was to examine the effect of cuboid height on the presence of plantar midfoot ulceration and the relationship of cuboid height to other commonly performed radiographic parameters during evaluation of midfoot Charcot neuroarthropathy. A retrospective analysis was performed of 68 feet in 60 subjects who met the inclusion criteria. We did not observe statistically significant differences in the presence of a plantar midfoot ulceration when considering a cuboid height threshold of 0...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28633035/economy-and-endurance-in-human-evolution
#20
REVIEW
Herman Pontzer
The evolutionary pressures shaping humans' unique bipedal locomotion have been a focus of research since Darwin, but the origins of humans' economical walking gait and endurance running capabilities remain unclear. Here, I review the anatomical and physiological determinants of locomotor economy (e.g., limb length and posture) and endurance (e.g., muscle volume and fiber type) and investigate their development in the hominin fossil record. The earliest hominins were bipedal but retained ape-like features in the hind limb that would have limited their walking economy compared to living humans...
June 19, 2017: Current Biology: CB
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