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https://www.readbyqxmd.com/read/29663091/anatomical-feasibility-study-of-flexor-hallucis-longus-transfer-in-treatment-of-achilles-tendon-and-posteromedial-portal-of-ankle-arthroscopy
#1
Haijiao Mao, Linger Wang, Wenwei Dong, Zhenxin Liu, Weigang Yin, Dachuan Xu, Keith L Wapner
PURPOSE: The aim of this study was to evaluate the occurrence of anatomical variations of the musculotendinous junction of the flexor hallucis longus (FHL) muscle, the relationship between FHL tendon or muscle and the tibial neurovascular bundle at the level of the posterior ankle joint in human cadavers. METHODS: Seventy embalmed feet from 20 male and 15 female cadavers, the cadavers' mean age was 65.4 (range from 14 to 82) years, were dissected and anatomically classified to observe FHL muscle morphology define the relationship between FHL tendon or muscle and the tibial neurovascular bundle...
April 16, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29657849/talar-process-fractures-an-overview-and-update-of-the-literature
#2
Haroon Majeed, Donald J McBride
Fractures of the lateral and the posterior processes of the talus are uncommon and frequently missed because of a low level of suspicion and difficulty in interpretation on plain radiographs. Missed fractures can lead to persistent pain and reduced function.Lateral process fractures are usually a consequence of forced dorsiflexion and inversion of fixed pronated foot. These are also commonly known as snowboarder's fractures.The posterior process of the talus is composed of medial and lateral tubercles, separated by the groove for the flexor hallucis longus tendon...
March 2018: EFORT Open Reviews
https://www.readbyqxmd.com/read/29564053/origin-of-satellite-ganglion-cysts-with-effusion-in-the-flexor-hallucis-longus-tendon-sheath-around-the-hallux
#3
Jung Woo Lee, Min Wook Joo, Jin-Kyeong Sung, Jae-Hoon Ahn, Yong-Koo Kang
Background: To describe the clinical and magnetic resonance imaging findings of ganglion cysts with effusion in the flexor hallucis longus tendon sheath around the hallux to evaluate their origin. Methods: Patients with recurrent or painful ganglion cysts around the hallux with effusion in the flexor hallucis longus tendon sheath who underwent surgical treatment at St. Vincent's Hospital from February 2007 to August 2016 were investigated. Surgical indication was a painful or recurrent mass caused by the cystic lesions...
March 2018: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/29548631/anatomic-study-of-anterior-and-posterior-ankle-portal-sites-for-ankle-arthroscopy-in-plantarflexion-and-dorsiflexion-a-cadaveric-study-in-the-japanese-population
#4
Ichiro Tonogai, Fumio Hayashi, Yoshihiro Tsuruo, Koichi Sairyo
Arthroscopy is an important and minimally invasive diagnostic and therapeutic tool. However, the risk of injury to the neurovascular structures around the portals exists during arthroscopy of the ankle. In the present study, we measured the distance between each portal and the adjacent neurovascular structures with the foot in plantarflexion and dorsiflexion in the Japanese population. Standard anterolateral (AL), anteromedial, posterolateral (PL), and posteromedial portal positions were identified in 6 fresh adult cadaveric feet...
March 13, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29526839/metatarsophalangeal-joint-flexion-affects-dorsiflexor-activity-in-subjects-with-a-dominant-extensor-hallucis-longus
#5
Ji-Hyun Lee, Hyo-Jung Jeong, Heon-Seock Cynn, Tae-Woo Kang
BACKGROUND AND OBJECTIVES: Normal dorsiflexion (DF) required for normal gait is achieved through balance of the tibialis anterior (TA) and extensor hallucis longus (EHL). Imbalance may induce ankle and foot deformities and exacerbate pathology. EHL dominance is associated with progressive TA weakness, attributable to muscle non-use. When the EHL dominantly dorsiflexes the ankle, the big toe extends at the metatarsophalangeal joint (MTPJ) and pure ankle DF is absent. The effects of active MTPJ flexion on TA and EHL muscles, TA/EHL ratio, and the force applied during active DF in EHL-dominant (EHL-D) and EHL-non-dominant (EHL-ND) subjects were compared...
March 2, 2018: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29524635/vestibular-evoked-responses-indicate-a-functional-role-for-intrinsic-foot-muscles-during-standing-balance
#6
Jonathan W Wallace, Brandon G Rasman, Brian H Dalton
Maintaining standing balance involves multisensory processing and integration to produce dynamic motor responses. Electrical vestibular stimulation (EVS) delivered over the mastoid processes can be used to explore the vestibular control of balance. The purpose of this study was to determine whether intrinsic foot muscles exhibit vestibular-evoked balance responses and to characterize the traits associated with these responses. Electromyography (EMG) of the abductor hallucis (AH), abductor digiti minimi (ADM) and medial gastrocnemius (MG) and anterior-posterior (AP) forces were sampled while quietly standing participants were subjected to a random continuous EVS signal (peak-to-peak amplitude = ±3 mA)...
May 1, 2018: Neuroscience
https://www.readbyqxmd.com/read/29510786/results-of-treatment-of-posterior-ankle-impingement-syndrome-and-flexor-hallucis-longus-tendinopathy-in-dancers-a-systematic-review
#7
A B M Boni Rietveld, F M T Hagemans, S Haitjema, T Vissers, R G H H Nelissen
Dancing on pointe and relevé requires extreme plantar flexion of the talo-crural joint. Hence, these positions may lead to posterior ankle impingement syndrome (PAIS). PAIS often coincides with flexor hallucis longus tendinopathy (FHL tendinopathy, or "dancers' tendinitis"). Both injuries can appear in isolation as well. The goal of this review is to evaluate the results and the available levels of evidence of conservative and operative treatment (both open and endoscopic) of PAIS and FHL tendinopathy in dancers...
March 15, 2018: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/29510785/operative-treatment-of-posterior-ankle-impingement-syndrome-and-flexor-hallucis-longus-tendinopathy-in-dancers-open-versus-endoscopic-approach
#8
A B M Boni Rietveld, F M T Hagemans
Posterior ankle impingement syndrome (PAIS) is a painful, usually limited plantar flexion of the ankle joint due to soft tissue impingement or a bony impediment often coinciding with tendinopathy of the flexor hallucis longus (FHL) behind the medial malleolus. In persistent complaints, the bony impediment is removed, the tunnel of the FHL tendon is released, or a combination of both procedures has traditionally been performed by open surgery. In 2000, an endoscopic surgical technique for PAIS and FHL tendinopathy was introduced...
March 15, 2018: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/29510784/posterior-ankle-impingement-syndrome-and-m-flexor-hallucis-longus-tendinopathy-in-dancers-results-of-open-surgery
#9
A B M Boni Rietveld, S Haitjema
Posterior ankle impingement syndrome (PAIS), the result of posterolateral soft tissue or bony impingement of the ankle, and tendinopathy of the flexor hallucis longus (FHL tendinopathy) in the ankle are common in dancers. If conservative treatment of these conditions fails to produce adequate results, surgical intervention might be necessary. However, outcomes of treatment by open surgery for these diagnoses have been described only in small series of dancers. For this study, data were extracted from clinical files and operative reports of an orthopaedic surgery clinic specialized in dance medicine...
March 15, 2018: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/29503138/quantification-of-the-learning-curve-for-arthroscopic-os-trigonum-excision
#10
Kotaro Yamakado
The purpose of the present study was to quantify the learning curve for arthroscopic os trigonum excision using the log-linear model. Twenty-three consecutive feet underwent arthroscopic os trigonum excision and release of the flexor hallucis longus. The required time from the beginning of shaving of the soft tissue until completion of os trigonum excision and release of the flexor hallucis longus (van Dijk time) was recorded. Regression analysis was applied to predict the required time on the basis of the cumulative case volume after logarithmic transformation of both statistics...
March 1, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29490544/influence-of-motor-imagery-of-isometric-flexor-hallucis-brevis-activity-on-the-excitability-of-spinal-neural-function
#11
Hidefumi Sasaki, Yukio Urabe, Noriaki Maeda, Toshiaki Suzuki
PURPOSE: This study aimed to validate the preliminary steps of motor image voluntary training in patients who are prone to falling as toe flexion muscle strength decreases. MATERIALS AND METHODS: We recorded the F-wave in 30 healthy subjects (20 men, 10 women; mean age, 22.5 ± 2.1 years). First, in a resting condition, the muscle was relaxed during the F-wave recording. Subsequently, the motion of the left flexor hallucis brevis muscle is photographed. F-waves were recorded immediately and at 5, 10, and 15 min after motor imagery...
March 1, 2018: Somatosensory & Motor Research
https://www.readbyqxmd.com/read/29487321/foot-strength-and-stiffness-are-related-to-footwear-use-in-a-comparison-of-minimally-vs-conventionally-shod-populations
#12
Nicholas B Holowka, Ian J Wallace, Daniel E Lieberman
The longitudinal arch (LA) helps stiffen the foot during walking, but many people in developed countries suffer from flat foot, a condition characterized by reduced LA stiffness that can impair gait. Studies have found this condition is rare in people who are habitually barefoot or wear minimal shoes compared to people who wear conventional modern shoes, but the basis for this difference remains unknown. Here we test the hypothesis that the use of shoes with features that restrict foot motion (e.g. arch supports, toe boxes) is associated with weaker foot muscles and reduced foot stiffness...
February 27, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29456077/talus-fracture-of-the-medial-tubercle-of-the-posterior-process-interposition-of-the-flexor-hallucis-longus-tendon
#13
Jin Park, Jin Ho Che
Talus fracture of the medial tubercle of the posterior process is rare. This type of fracture can be easily missed, because it is difficult to identify on plain radiographs of the ankle. Oblique radiographs with external rotation, computed tomography, and magnetic resonance imaging (MRI) of the ankle are useful for making an accurate diagnosis. However, even with an early diagnosis, the treatment guidelines for talus fractures of the posterior medial tubercle have not yet been established. The flexor hallucis longus (FHL) tendon, which passes through the groove between the medial and lateral tubercles of the posterior process of the talus, can interpose between the fracture sites and interrupt fracture reduction...
February 15, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29453583/reconstruction-for-chronic-achilles-tendinopathy-comparison-of-flexor-hallucis-longus-fhl-transfer-versus-v-y-advancement
#14
Jackson R Staggers, Kenneth Smith, Cesar de C Netto, Sameer Naranje, Krishna Prasad, Ashish Shah
BACKGROUND: Several operative techniques exist for Achilles tendinopathy. The purpose of our study was to compare the clinical and functional outcomes of flexor hallucis longus (FHL) transfer and V-Y advancement for the treatment of chronic insertional Achilles tendinopathy. METHODS: Retrospective chart review from 2010 to 2016 of patients that underwent FHL transfer or V-Y advancement for chronic insertional Achilles tendinopathy. Outcome measures were compared for these two procedures...
April 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29448825/radiographic-prognostic-factors-for-selective-soft-tissue-release-after-ponseti-failure-in-young-pediatric-clubfoot-patients
#15
Michael Seungcheol Kang, Il-Yeong Hwang, Soo-Sung Park
BACKGROUND: Selective soft tissue release (SSTR), which includes a combination of abductor hallucis, tibialis posterior, and Achilles lengthening, has been used in patients with recurrent clubfoot deformity after Ponseti treatment. The aim of this study was to investigate the prognostic factors for recurrence of clubfoot deformity after SSTR. METHODS: Consecutive patients with idiopathic clubfoot and residual or recurrent deformity after Ponseti treatment underwent SSTR between 2005 and 2013...
February 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29437060/degenerative-subtalar-joints-complicated-by-medial-plantar-intraneural-cysts-cutting-the-cystic-articular-branch-prevents-recurrence
#16
P Laumonerie, F Lapègue, N Reina, M Tibbo, M Rongières, M Faruch, P Mansat
AIMS: The pathogenesis of intraneural ganglion cysts is controversial. Recent reports in the literature described medial plantar intraneural ganglion cysts (mIGC) with articular branches to subtalar joints. The aim of the current study was to provide further support for the principles underlying the articular theory, and to explain the successes and failures of treatment of mICGs. PATIENTS AND METHODS: Between 2006 and 2017, five patients with five mICGs were retrospectively reviewed...
February 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29413791/contributions-of-foot-muscles-and-plantar-fascia-morphology-to-foot-posture
#17
Salih Angin, Karen J Mickle, Christopher J Nester
BACKGROUND: The plantar foot muscles and plantar fascia differ between different foot postures. However, how each individual plantar structure contribute to foot posture has not been explored. The purpose of this study was to investigate the associations between static foot posture and morphology of plantar foot muscles and plantar fascia and thus the contributions of these structures to static foot posture. METHODS: A total of 111 participants were recruited, 43 were classified as having pes planus and 68 as having normal foot posture using Foot Posture Index assessment tool...
January 27, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29413772/increasing-the-safety-of-minimally-invasive-hallux-surgery-an-anatomical-study-introducing-the-clock-method
#18
Francesc Malagelada, Miki Dalmau-Pastor, Betlem Fargues, Maria Cristina Manzanares-Céspedes, Fernando Peña, Jordi Vega
BACKGROUND: The purpose of this study is to describe a simple and reproducible method to localize the neurological structures at risk and to describe a safe zone for hallux minimally invasive surgery (MIS) procedures. METHODS: Ten fresh-frozen cadaveric feet were dissected to identify the dorsomedial digital nerve (DMDN) and the dorsolateral digital nerve (DLDN) of the first toe. Axial sections were performed at the sites of metatarsal osteotomies. We documented the position of the nerves with respect to the extensor hallucis longus (EHL) tendon using a clock method superimposed on the axial section RESULTS: The DMDN was found at an average of 26...
February 2018: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29413632/test-retest-reliability-of-ultrasound-measures-of-intrinsic-foot-motor-function
#19
John J Fraser, L Colby Mangum, Jay Hertel
OBJECTIVE: To establish test-retest reliability of Intrinsic Foot Muscle (IFM) motor function measured using ultrasound imaging (USI). SETTING: Laboratory. DESIGN: Reliability Study. PARTICIPANTS: 24 healthy young adults without history of ankle-foot injury. MAIN OUTCOME MEASURES: Ultrasound measures of Abductor hallucis (AbdH), flexor digitorum brevis (FDB), quadratus plantae (QP) and flexor hallucis brevis (FHB) cross-sectional area (CSA) and thickness were assessed on 2 occasions, 3-10 days apart...
March 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29409298/use-of-a-percutaneous-osteotomy-with-plate-fixation-in-hallux-valgus-correction
#20
Rodrigo Díaz Fernández
BACKGROUND: With hundreds of operative methods described for correction of hallux valgus we can state that the ideal surgical treatment is still controversial. The Bösch technique has been used as a percutaneous way of correcting hallux valgus deformities with the use of a pin fixation. The aim of this study is to evaluate a new method of fixation by using a percutaneous locking plate. METHODS: Between June 2013 and January 2015, 24 consecutive percutaneous subcapital osteotomies of the first metatarsal bone were performed for the treatment of painful hallux valgus deformities in 24 patients...
September 20, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
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