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https://www.readbyqxmd.com/read/29785224/pseudarthrosis-of-the-calcaneus-advantages-of-regenerative-medicine-in-the-management-of-a-rare-entity-a-case-report-and-review-of-literature
#1
Bouaziz Wajdi, Mohamed Ali Rebai, Walid Baya, Nabil Krid, Wassim Zribi, Hassib Keskes
Background: The follow-up of calcaneal fractures has shown that they are difficult to manage and lead to multiple complications such as malunion and subtalar osteoarthritis. Pseudarthrosis of the calcaneus is an extremely rare complication, which was described in the literature through case reports.In the existing literature, only seven studies, including thirteen patients have reported the nonunion. However, to the best of our knowledge, no study elucidates the role of new techniques of regenerative medicine such as Bone Marrow Concentrates (BMC) or Platelet Rich Plasma (PRP) in the management...
2018: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29766741/simultaneous-intraoperative-measurement-of-cadaver-ankle-and-subtalar-joint-compression-during-arthrodesis-with-intramedullary-nail-screws-and-tibiotalocalcaneal-plate
#2
Kamran S Hamid, Richard R Glisson, Joel G Morash, Andrew P Matson, James K DeOrio
BACKGROUND: Suboptimal tibiotalocalcaneal arthrodesis (TTCA) fusion rates may result from inadequate compression that increases motion and interferes with bony bridging. The aim of this study was to evaluate compressive forces at the ankle and subtalar joints with 3 contemporary TTCA constructs. METHODS: Thirty fresh-frozen cadaveric lower extremity specimens were divided into 3 groups of 10 each: 3 partially threaded cannulated screws, hindfoot nail, and lateral plate...
May 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29716723/experimental-evaluation-of-current-and-novel-approximations-of-articular-surfaces-of-the-ankle-joint
#3
Claudio Belvedere, Sorin Siegler, Andrea Ensini, Jason Toy, Paolo Caravaggi, Ramya Namani, Luca Giuseppe Princi, Stefano Durante, Alberto Leardini
Kinematics and flexibility properties of both natural and replaced ankle joints are affected by the geometry of the articulating surfaces. Recent studies proposed an original saddle-shaped, skewed, truncated cone with laterally oriented apex, as tibiotalar contact surfaces for ankle prosthesis. The goal of this study was to compare in vitro this novel design with traditional cylindrical or medially centered conic geometries in terms of their ability to replicate the natural ankle joint mechanics. Ten lower limb cadaver specimens underwent a validated process of custom design for the replacement of the natural ankle joint...
April 24, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29709656/surgical-treatment-of-idiopathic-pes-planovalgus-in-paediatric-patients
#4
REVIEW
Camille Thévenin-Lemoine, Néjib Khouri
Idiopathic pes planus is common and usually physiologic. Decompensation, when it occurs, may be obvious or on the contrary difficult to identify, raising challenges in patient selection for surgical treatment. The physical examination of a child with pes planus must include an evaluation in the supine position, which helps to adjust the amount of correction during surgery. The many reported surgical procedures include repositioning (talus-reseating, subtalar implants, and calcaneo-stop screw), osteotomies, and joint fusions...
April 27, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29697440/three-dimensionally-printed-personalized-implant-design-and-reconstructive-surgery-for-a-bone-tumor-of-the-calcaneus-a-case-report
#5
Jong Woong Park, Hyun Guy Kang, Kwun Mook Lim, June Hyuk Kim, Han Soo Kim
CASE: A 23-year-old soldier was diagnosed with a calcaneal desmoplastic fibroma. Limb-salvage surgery using a 3-dimensionally (3D) printed personalized implant made from a titanium alloy was planned. The implant had a mesh-style surface for free tendon suture, and the joint surface was smooth to preserve the subtalar joint. The implant had 3 hollow posts in case of future transarticular immobilization. At the last follow-up, the implant was painless and stable, and the patient could walk normally without support...
April 25, 2018: JBJS Case Connector
https://www.readbyqxmd.com/read/29696991/pressure-distribution-in-the-ankle-and-subtalar-joint-with-routine-and-oversized-foot-orthoses
#6
Patrick Williamson, Aron Lechtig, Philip Hanna, Stephen Okajima, Peter Biggane, Michael Nasr, David Zurakowski, Naven Duggal, Ara Nazarian
BACKGROUND: Foot orthoses are used to treat many disorders that affect the lower limb. These assistive devices have the potential to alter the forces, load distribution, and orientation within various joints in the foot and ankle. This study attempts to quantify the effects of orthoses on the intra-articular force distribution of the ankle and subtalar joint using a cadaveric testing jig to simulate weight bearing. METHODS: Five lower-limb cadaveric specimens were placed on a custom jig, where a 334-N (75-lb) load was applied at the femoral head, and the foot was supported against a plate to simulate double-leg stance...
April 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29682982/resection-of-medial-talocalcaneal-coalition-with-interposition-of-a-pediculated-flap-of-tibialis-posterior-tendon-sheath
#7
Jan Hubert, Thelonius Hawellek, Frank Timo Beil, Dominik Saul, Jens Henning Kling, Christoph Viebahn, Oliver Jungesblut, Ralf Stücker, Martin Rupprecht
BACKGROUND: The purpose of the study was to present a novel operative technique in the management of medial talocalcaneal coalition (TC) and to report our clinical and radiologic results after interposition of a pediculated flap (PF) of the tibialis posterior tendon sheath. METHODS: Twelve feet of 10 patients with a medial TC were treated with the interposition of PF of the tibialis posterior tendon sheath following resection. Pre- and postoperative clinical examinations were performed to evaluate the range of motion and the function of the tibialis posterior muscle of the affected foot...
April 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29675509/giant-cells-osseous-tumor-in-the-tarsal-canal-after-lateral-ankle-sprain
#8
Marcello Lughi
Ankle sprain can cause injuries to the anatomic structures surrounding the tibiotarsal joint. A possible extra-articular pathology is to be hypothesized and diagnosed as early as possible. The subtalar joint, for anatomical and functional reasons, is one of the most damaged joints following an ankle sprain. In spite of this, its involvement is often underestimated. The clinical case presented in the present article is referred to a giant cells osseous tumor in the tarsal canal that was diagnosed 2 months after an inversion ankle sprain...
March 2018: Joints
https://www.readbyqxmd.com/read/29666996/comparison-of-t2-relaxation-values-in-subtalar-cartilage-between-patients-with-lateral-instability-of-the-ankle-joint-and-healthy-volunteers
#9
Hyun Su Kim, Young Cheol Yoon, Ki Sun Sung, Min-Ji Kim, Soohyun Ahn
PURPOSE: To evaluate the difference between T2 relaxation values of the subtalar cartilage in lateral ankle instability patients and healthy volunteers. MATERIALS AND METHODS: This institutional review board-approved study included 27 preoperative magnetic resonance imaging (MRI) examinations of 26 patients who underwent Broström operations. Data of previously enrolled healthy volunteers (12 volunteers, 13 MRIs) were used as controls. Two radiologists independently measured T2 values in eight posterior subtalar joint cartilage compartments: central calcaneus anterior (CCA) and posterior (CCP), central talus anterior (CTA) and posterior (CTP), lateral calcaneus anterior (LCA) and posterior (LCP), and lateral talus anterior (LTA) and posterior (LTP)...
April 17, 2018: European Radiology
https://www.readbyqxmd.com/read/29664876/what-factors-influence-union-and-refracture-of-congenital-pseudarthrosis-of-the-tibia-a-multicenter-long-term-study
#10
Hitesh Shah, Benjamin Joseph, Binu V S Nair, Devaki B Kotian, In Ho Choi, Benjamin Stephens Richards, Charles Johnston, Vrisha Madhuri, Matthew B Dobbs, Mark Dahl
OBJECTIVE: To identify factors influencing union of congenital pseudarthrosis of the tibia (CPT), refractures, and integrity of the tibia at maturity. METHODS: Data of 119 children operated for Crawford-type IV CPT and followed-up till skeletal maturity were analyzed. Logistic regression and recursive partitioning analyses were used to test associations between several variables and the outcome. RESULTS: Primary union occurred in 86% of children...
April 16, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29657849/talar-process-fractures-an-overview-and-update-of-the-literature
#11
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/29629592/revision-of-failed-total-ankle-arthroplasty-to-a-hindfoot-fusion
#12
A A Ali, R A Forrester, P O'Connor, N J Harris
Aims The aim of this study was to present a series of patients with aseptic failure of a total ankle arthroplasty (TAA) who were treated with fusion of the hindfoot using a nail. Patients and Methods A total of 23 TAAs, in 22 patients, were revised for aseptic loosening and balloon osteolysis to a hindfoot fusion by a single surgeon (NH) between January 2012 and August 2014. The procedure was carried out without bone graft using the Phoenix, Biomet Hindfoot Arthrodesis Nail. Preoperative investigations included full blood count, CRP and ESR, and radiological investigations including plain radiographs and CT scans...
April 1, 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29629582/arthroscopically-assisted-fixation-of-hawkins-type-ii-talar-neck-fractures
#13
J Wagener, C Schweizer, L Zwicky, T Horn Lang, B Hintermann
Aims Arthroscopically controlled fracture reduction in combination with percutaneous screw fixation may be an alternative approach to open surgery to treat talar neck fractures. The purpose of this study was thus to present preliminary results on arthroscopically reduced talar neck fractures. Patients and Methods A total of seven consecutive patients (four women and three men, mean age 39 years (19 to 61)) underwent attempted surgical treatment of a closed Hawkins type II talar neck fracture using arthroscopically assisted reduction and percutaneous screw fixation...
April 1, 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29626046/using-the-oxford-foot-model-to-determine-the-association-between-objective-measures-of-foot-function-and-results-of-the-aofas-ankle-hindfoot-scale-and-the-foot-function-index-a-prospective-gait-analysis-study-in-germany
#14
Tanja Kostuj, Felix Stief, Kirsten Anna Hartmann, Katharina Schaper, Mohammad Arabmotlagh, Mike H Baums, Andrea Meurer, Frank Krummenauer, Sebastian Lieske
OBJECTIVE: After cross-cultural adaption for the German translation of the Ankle-Hindfoot Scale of the American Orthopaedic Foot and Ankle Society (AOFAS-AHS) and agreement analysis with the Foot Function Index (FFI-D), the following gait analysis study using the Oxford Foot Model (OFM) was carried out to show which of the two scores better correlates with objective gait dysfunction. DESIGN AND PARTICIPANTS: Results of the AOFAS-AHS and FFI-D, as well as data from three-dimensional gait analysis were collected from 20 patients with mild to severe ankle and hindfoot pathologies...
April 5, 2018: BMJ Open
https://www.readbyqxmd.com/read/29606669/flares-of-disease-in-children-with-clinically-inactive-juvenile-idiopathic-arthritis-were-not-correlated-with-ultrasound-findings
#15
Yongdong Zhao, Nanci E Rascoff, Ramesh S Iyer, Mahesh Thapa, Lucas Reichley, Assaf P Oron, Carol A Wallace
OBJECTIVE: The validity of our current definitions for clinically inactive disease (CID) in juvenile idiopathic arthritis (JIA) based on physical examination is challenged by the development of advanced musculoskeletal imaging tools. We aimed to prospectively determine the prevalence of abnormal ultrasound (US) findings in children with CID in JIA and their clinical significance. METHODS: Children aged ≥ 4 years with CID and a history of arthritis from a single tertiary center were approached over 1 year...
April 1, 2018: Journal of Rheumatology
https://www.readbyqxmd.com/read/29600577/assessment-of-passive-musculoarticular-ankle-stiffness-in-children-adolescents-and-young-adults-with-haemophilic-ankle-arthropathy
#16
S Lobet, O Cartiaux, K Peerlinck, S Henrard, C Hermans, C Detrembleur, K Deschamps
OBJECTIVES: To measure passive musculoarticular ankle stiffness (PMAAS) and its intra- and interday reliability in adult control subjects without ankle disorders. We also sought to quantify PMAAS in children, adolescents and young adults with haemophilia (CAAwH) taking into account the accurate tibiotalar and subtalar joints structural status obtained by magnetic resonance imaging (MRI). METHODS: We included 23 CAAwH and 23 typically developing boys (TDB) matched by age, weight and height, along with 25 healthy volunteers for reliability assessment...
March 30, 2018: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/29595648/clinical-application-of-the-sinus-tarsi-approach-in-the-treatment-of-intra-articular-calcaneal-fracture
#17
Qingting Meng, Qingxian Wang, Xirui Wu, Aqin Peng, Jincheng Yan
To observe the clinical outcome of the sinus tarsi approach in the operative treatment of intra-articular calcaneal fractures.Forty-nine intra-articular calcaneal fractures in 45 patients were managed surgically with sinus tarsi approach. The anatomical plate and compression bolts were applied in 14 feet. The anatomical plate and screws were applied in 35 feet. Maryland foot score system was used to evaluate the function of the hindfoot at the followup.The reduction of the posterior facet was graded as nearly anatomical (less than 2 mm articular displacement) in 46 feet (93...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29561862/lower-limb-muscle-co-contraction-and-joint-loading-of-flip-flops-walking-in-male-wearers
#18
Tony Lin-Wei Chen, Duo Wai-Chi Wong, Zhi Xu, Qitao Tan, Yan Wang, Ameersing Luximon, Ming Zhang
Flip-flops may change walking gait pattern, increase muscle activity and joint loading, and predispose wearers to foot problems, despite that quantitative evidence is scarce. The purpose of this study was to examine the lower limb muscle co-contraction and joint contact force in flip-flops gait, and compare with those of barefoot and sports shoes walking. Ten healthy males were instructed to perform over-ground walking at self-selected speed under three footwear conditions: 1) barefoot, 2) sports shoes, and 3) thong-type flip-flops...
2018: PloS One
https://www.readbyqxmd.com/read/29560491/comparative-evaluation-between-anatomic-and-non-anatomic-lateral-ligament-reconstruction-techniques-in-the-ankle-joint-a-computational-study
#19
Tserenchimed Purevsuren, Myagmarbayar Batbaatar, Batbayar Khuyagbaatar, Kyungsoo Kim, Yoon Hyuk Kim
Biomechanical studies have indicated that the conventional non-anatomic reconstruction techniques for lateral ankle sprain (LAS) tend to restrict subtalar joint motion compared to intact ankle joints. Excessive restriction in subtalar motion may lead to chronic pain, functional difficulties, and development of osteoarthritis. Therefore, various anatomic surgical techniques to reconstruct both the anterior talofibular and calcaneofibular ligaments have been introduced. In this study, ankle joint stability was evaluated using multibody computational ankle joint model to assess two new anatomic reconstruction and three popular non-anatomic reconstruction techniques...
March 12, 2018: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29555896/talar-neck-fracture-with-dislocation-combined-with-bimalleolar-ankle-fracture-a-case-report
#20
Ahmad M Radaideh, Ziad A Audat, Abdullah A Saleh
BACKGROUND Fractures of the talus are uncommon injuries that usually involve the talar neck, rather than the talar body. This report is of a rare case of combined left talar neck fracture and adjacent joint dislocation with an ipsilateral bimalleolar ankle fracture. CASE REPORT A 37-year-old man presented with an injury to his left foot following a motor vehicle accident. When he presented to the hospital emergency department, his left foot and ankle were swollen, the overlying skin was intact but badly contused, and there was no neurovascular deficit...
March 20, 2018: American Journal of Case Reports
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