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John Morellato, Hakim Louati, Andrew Bodrogi, Andrew Stewart, Steven Papp, Allan Liew, Wade Gofton
BACKGROUND/PURPOSE: There have been no studies assessing the optimal biomechanical tension of suture button constructs. The purpose of this study was to assess optimal tensioning of suture button fixation and its ability to maintain reduction under loaded conditions using a stress computed tomography (CT) model. METHODS: Ten cadaveric lower limbs disarticulated at the knee were used. The limbs were placed in a modified ankle load frame that allowed for the application of sustained torsional axial, or combined torsional/axial loads...
October 13, 2016: Journal of Orthopaedic Trauma
N Harrasser, K Eichelberg, F Pohlig, H Waizy, A Toepfer, R von Eisenhart-Rothe
Because of their frequency, ankle sprains are of major clinical and economic importance. The simple sprain with uneventful healing has to be distinguished from the potentially complicated sprain which is at risk of transition to chronic ankle instability. Conservative treatment is indicated for the acute, simple ankle sprain without accompanying injuries and also in cases of chronic instability. If conservative treatment fails, good results can be achieved by anatomic ligament reconstruction of the lateral ankle ligaments...
October 13, 2016: Der Orthopäde
Marie-Lyne Nault, Melissa Marien, Jonah Hébert-Davies, G Yves Laflamme, Vincent Pelsser, Dominique M Rouleau, Nayla Gosselin-Papadopoulos, Stéphane Leduc
BACKGROUND: Despite the common occurrence of syndesmotic injuries in ankle trauma, the distal tibiofibular relationship remains poorly understood. The aim of this study was to evaluate the anatomical impact of ankle sagittal positioning on the tibiofibular relationship in intact ankles by using a validated magnetic resonance imaging (MRI)-based measurement system. METHODS: In this radiologic study, 34 healthy volunteers underwent a series of ankle MRIs with the ankle stabilized in 3 positions: neutral position (NP), dorsiflexion (DF), and plantarflexion (PF)...
October 12, 2016: Foot & Ankle International
Jason M Schon, Brady T Williams, Melanie B Venderley, Grant J Dornan, Jonathon D Backus, Travis Lee Turnbull, Robert F LaPrade, Thomas O Clanton
BACKGROUND: Historically, syndesmosis injuries have been repaired with screw fixation; however, some suggest that suture-button constructs may provide a more accurate anatomic and physiologic reduction. The purpose of this study was to compare changes in the volume of the syndesmotic space following screw or suture-button fixation using a preinjury and postoperative 3-D computed tomography (CT) model. The null hypothesis was that no difference would be observed among repair techniques...
October 12, 2016: Foot & Ankle International
Fabian Wong, Rebecca Mills, Nadeem Mushtaq, Roland Walker, Samrendu K Singh, Ali Abbasian
INTRODUCTION: Various methods using CT scan have been described to diagnose distal tibiofibular syndesmotic injuries. However, CT scan does not take into account the amount of cartilage within the distal tibiofibular joint and could therefore lead to false positive results. We present the first study correlating the findings of the distal tibiofibular syndesmosis on CT and MRI scans. METHODS: CT and MRI scan of consecutive patients over a period of 18 months, and of a time lapsed less than 12 months between the two imaging modalities, were reviewed...
June 23, 2016: Foot
Thomas O Clanton, Brady T Williams, Jonathon D Backus, Grant J Dornan, Daniel J Liechti, Scott R Whitlow, Adriana J Saroki, Travis Lee Turnbull, Robert F LaPrade
BACKGROUND: Biomechanical data and contributions to ankle joint stability have been previously reported for the individual distal tibiofibular ligaments. These results have not yet been validated based on recent anatomic descriptions or using current biomechanical testing devices. METHODS: Eight matched-pair, lower leg specimens were tested using a dynamic, biaxial testing machine. The proximal tibiofibular joint and the medial and lateral ankle ligaments were left intact...
September 28, 2016: Foot & Ankle International
Robert Diaz, Jennifer E Miller, Joanne Borg-Stein, Minna J Kohler
No abstract text is available yet for this article.
September 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
Thomas O Clanton, Scott R Whitlow, Brady T Williams, Daniel J Liechti, Jonathon D Backus, Grant J Dornan, Adriana J Saroki, Travis Lee Turnbull, Robert F LaPrade
BACKGROUND: Significant debate exists regarding optimal repair for unstable syndesmosis injuries. Techniques range from screw fixation, suture-button fixation, or a combination of the two. In this study, 3 common repairs were compared using a simulated weightbearing protocol with internal and external rotation of the foot. METHODS: Twenty-four lower leg specimens with mean age 54 years (range, 38-68 years) were used for testing. Following creation of a complete syndesmotic injury (AITFL, ITFL, PITFL, interosseous membrane), specimens were repaired using 1 of 3 randomly assigned techniques: (1) one 3...
September 25, 2016: Foot & Ankle International
Jiri Marvan, Valer Dzupa, Martin Krbec, Jiri Skala-Rosenbaum, Radek Bartoska, David Kachlik, Vaclav Baca
INTRODUCTION: Ankle fractures comprise a highly morphologically and etiologically diverse group of injuries, which includes various degrees of impairment of bone and ligamentous structures. The complete synostosis and incomplete bony bridging of tibiofibular syndesmosis are among the local late complications after surgically treated ankle fractures. PATIENTS AND METHOD: 269 patients were evaluated, including 203 patients with Weber type-B fractures, and 66 patients with Weber type-C fractures...
September 7, 2016: Injury
Marie-Lyne Nault, Laurence Gascon, Jonah Hébert-Davies, Stéphane Leduc, G Yves Laflamme, Dennis Kramer
BACKGROUND: The hypothesis of this study is that a sprain or tear of 1 or more of the 3 syndesmotic ligaments will result in a significant change in the osseous anatomy relationship when comparing injured to uninjured syndesmosis. Our secondary objective was to determine whether injuries to the syndesmosis as diagnosed on magnetic resonance imaging (MRI) could be found using static imaging. METHODS: This is a descriptive radiological study of ankle MRI reports over a 12-year period, from 2 different institutions, and divided in two groups: normal and injured syndesmotic ligaments...
September 13, 2016: Foot & Ankle Specialist
Hirotaka Takahashi, Goro Tajima, Shuhei Kikuchi, Jun Yan, Yoichi Kamei, Moritaka Maruyama, Atsushi Sugawara, Takaaki Saigo, Minoru Doita
PURPOSE: To clarify the fibular head insertion of the fibular collateral ligament (FCL), popliteofibular ligament (PFL), and biceps femoris tendon and related osseous landmarks on three-dimensional (3-D) images. METHODS: Twenty-one non-paired, formalin-fixed human cadaveric knees were evaluated in this study. The fibular head insertions of the FCL, PFL and biceps femoris tendon were identified and marked. 3-D images were created, and the surface area, location, positional relationships, and morphology of the fibular insertions of the FCL, PFL, and biceps femoris tendon and related osseous structures were analysed...
September 12, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Douglas E Lucas, B Collier Watson, G Alex Simpson, Gregory C Berlet, Christopher F Hyer
: Ankle fractures are a common injury treated by orthopaedic surgeons. The distal tibiofibular syndesmosis can be injured during these fractures as well as in isolation. They pose a significant challenge with regard to the diagnosis of instability as well as evaluating reduction after fixation. Multiple studies have demonstrated that traditional radiographic analysis fails to accurately identify syndesmotic diastasis, instability, or malreduction. Ankle arthroscopy has been proposed as an alternative way to evaluate the syndesmosis...
September 9, 2016: Foot & Ankle Specialist
Emily Andrisevic, David E Westberry, Linda I Pugh, Anita M Bagley, Stephanie Tanner, Jon R Davids
BACKGROUND: Excessive internal or external tibial torsion is frequently present in children with cerebral palsy. Several surgical techniques have been described to correct excessive tibial torsion, including isolated distal tibial rotation osteotomy (TRO). The anatomic changes surrounding this technique are poorly understood. The goal of the study was to examine the anatomic relationship between the tibia and fibula following isolated distal TRO in children with cerebral palsy. METHODS: Twenty patients with 29 limbs were prospectively entered for study...
October 2016: Journal of Pediatric Orthopedics
Marco Corgiat Loia, Stefania Vanni, Federica Rosso, Davide Edoardo Bonasia, Matteo Bruzzone, Federico Dettoni, Roberto Rossi
Opening wedge high tibial osteotomy (OWHTO) is a surgical procedure that aims to correct the weight-bearing axis of the knee, moving the loads laterally from the medial compartment. Conventional indications for OWHTO are medial compartment osteoarthritis and varus malalignment of the knee; recently OWHTO has been used successfully in the treatment of double and triple varus. OWHTO, in contrast to closing wedge high tibial osteotomy, does not require fibular osteotomy or peroneal nerve dissection, or lead to disruption of the proximal tibiofibular joint and bone stock loss...
April 2016: Joints
Ronald G Ray
There are a number of variations in the intra-articular anatomy of the ankle which should not be considered pathological under all circumstances. The anteromedial corner of the tibial plafond (between the anterior edge of the tibial plafond and the medial malleolus) can have a notch, void of cartilage and bone. This area can appear degenerative arthroscopically; it is actually a normal variant of the articular surface. The anterior inferior tibiofibular ligament (AITF) can possess a lower, accessory band which can impinge on the anterolateral edge of the talar dome...
October 2016: Clinics in Podiatric Medicine and Surgery
Shuhei Nozaki, Kota Watanabe, Masaki Katayose
INTRODUCTION: Three-dimensional (3D) behavior of the talocrural joint is primarily determined by the articular surface morphology of the talar trochlea and tibiofibular mortise. However, morphological features of the anterior and posterior regions of the talar trochlea remain unclear. The objectives of this study were to evaluate anterior and posterior radii of the medial and lateral talar trochlea and to estimate subject-specific kinematics of the talocrural joint. MATERIALS AND METHODS: Fifty dry tali were scanned using computed tomography to create 3D bone models...
September 4, 2016: Clinical Anatomy
M Bondi, N Rossi, A Pizzoli, L Renzi Brivio
PURPOSE: Ten percentage of all ankle fractures sustain an associated syndesmotic injury. TightRope is a relatively new technique for syndesmosis fixation, characterized by a non-absorbable FibreWire held tight between two cortical metal buttons. The purpose of this study was to evaluate the results obtained with the use of this device. METHODS: From January 2011 to December 2015, 54 patients with ankle diastases were treated. Eighteen patients were excluded from the study...
August 27, 2016: Musculoskeletal Surgery
Onur Kocadal, Mehmet Yucel, Murad Pepe, Ertugrul Aksahin, Cem Nuri Aktekin
BACKGROUND: Among the most important predictors of functional results of treatment of syndesmotic injuries is the accurate restoration of the syndesmotic space. The purpose of this study was to investigate the reduction performance of screw fixation and suture-button techniques using images obtained from computed tomography (CT) scans. METHODS: Patients at or below 65 years who were treated with screw or suture-button fixation for syndesmotic injuries accompanying ankle fractures between January 2012 and March 2015 were retrospectively reviewed in our regional trauma unit...
August 16, 2016: Foot & Ankle International
Christopher W Reb, Christopher F Hyer, Christy L Collins, Corey M Fidler, B Collier Watson, Gregory C Berlet
BACKGROUND: The "tibiofibular line" is a new axial computed tomography parameter for assessing syndesmosis reduction, which references the flat anterolateral surface of the fibula and anterolateral tibial tubercle. These same bony landmarks are easily visualized via a lateral approach to the fibula. This cadaveric study assessed the practical aspects of measuring the tibiofibular line intraoperatively. METHODS: Three observers simulated the tibiofibular line using operative rulers in 3 measurement series utilizing 10 cadaveric specimens: intact syndesmosis, syndesmosis reduction, and fixation after application of lateral plate and screws to the fibula, and post syndesmosis reduction and fixation without plate and screws...
August 16, 2016: Foot & Ankle International
Kalpesh R Vaghela, Hans Clement, Lee Parker
BACKGROUND: Open surgical access to the postero-lateral talar dome for the treatment of osteochondral lesions is challenging, often requiring a segmental osteotomy of the fibula (fibular window) and division of the anterior inferior tibiofibular ligament (AITFL) or a fibular osteotomy with division of the AITFL and the anterior talofibular ligament (ATFL) (fibular door). Alternatively, to preserve the tibiofibular syndesmosis both the fibula and the lateral tibial plafond can be osteotomised to expose the entire lateral talar dome...
September 2016: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
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