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Posterior malleolar

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https://www.readbyqxmd.com/read/29673344/the-risk-of-violating-the-posterior-malleolar-fracture-when-nailing-the-ipsilateral-concomitant-spiral-distal-tibial-fracture
#1
Yu Zhang, Xiaodong Qin, Lijun Song, Xiang Li
BACKGROUND: For a distal tibial spiral fracture combined with a non-displaced posterior malleolar fragment (PMF), we proposed a hypothesis that the treating surgeon could assess the size of the PMF to determine the need for stabilizing that structure first before rodding the tibia. MATERIALS AND METHODS: Fifty 3-D models (22 females) of combined distal tibial and posterior malleolar fractures from one trauma center were reconstructed. In each case, a virtual tibial intramedullary nail (vIM nail) with three distal anteroposterior (AP) locking screws (S13 , S15 and S37 , the number indicating the distance from the screw to the nail tip) were inserted into the center of the tibial canal and ended on top of the distal tibial physeal scar...
April 19, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29558920/pre-operative-radiographic-findings-predicting-concomitant-posterior-malleolar-fractures-in-tibial-shaft-fractures-a-comparative-retrospective-study
#2
Zhipeng Huang, Yuan Liu, Wenjun Xie, Xiang Li, Xiaodong Qin, Jun Hu
BACKGROUND: A concomitant tibial shaft and posterior malleolar fracture is a type of regular compound fracture. The associated posterior malleolar fractures are mostly occult fractures, which often do not show a fracture line on ordinary films, and thus lead to a high rate of misdiagnosis. The aim of the present study was to investigate factors helpful for the pre-operative detection of concomitant posterior ankle fractures using the ipsilateral radiographic tibia and fibula shaft fracture characteristics...
March 20, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29510693/biomechanical-efficacy-of-ap-pa-lag-screws-and-posterior-plating-for-fixation-of-posterior-malleolar-fractures-a-three-dimensional-finite-element-study
#3
Adeel Anwar, Zhen Zhang, Decheng Lv, Gang Lv, Zhi Zhao, Yanfeng Wang, Yue Cai, Wasim Qasim, Muhammad Umar Nazir, Ming Lu
BACKGROUND: Clinically there are different fixation methods used for fixation of the posterior malleolar fractures (PMF), but the best treatment modality is still not clear. Few studies have concentrated on this issue, least of all using a biomechanical comparison. The purpose of this study was to carry out a computational comparative biomechanics of three different commonly used fixation constructs for the fixation of PMF by finite element analysis (FEA). METHODS: Computed tomography (CT) images were used to reconstruct three dimensional (3D) model of the tibia...
March 6, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29444575/-classification-of-posterior-malleolar-fractures-in-ankle-fractures
#4
J Bartoníček, S Rammelt, D Klika, O Naňka, M Tuček, K Kostlivý, V Vaněček
The study presents an overview of the most common radiography and CT-based classifications of posterior malleolar fractures in ankle fracture-dislocations. Their analysis has shown that posterior malleolar fractures largely vary in size and shape. Evaluation of fractures by plain radiographs is inadequate. A detailed assessment of the fragment shape and course of fracture lines requires CT examination in all three projections, followed by 3D CT reconstructions.Key words: ankle fracture - dislocations trimalleolar fractures posterior malleolar fractures classification...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/29439685/morphological-characteristics-of-the-posterior-malleolar-fragment-according-to-ankle-fracture-patterns-a-computed-tomography-based-study
#5
Young Yi, Dong-Il Chun, Sung Hun Won, Suyeon Park, Sanghyeon Lee, Jaeho Cho
BACKGROUND: The posterior malleolar fragment (PMF) of an ankle fracture can have various shapes depending on the injury mechanism. The purpose of this study was to evaluate the morphological characteristics of the PMF according to the ankle fracture pattern described in the Lauge-Hansen classification by using computed tomography (CT) images. METHODS: We retrospectively analyzed CT data of 107 patients (107 ankles) who underwent surgery for trimalleolar fracture from January 2012 to December 2014...
February 13, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29424166/-case-control-study-on-reduction-for-external-and-posterior-malleolar-fractures-combined-with-compressive-articular-surface-through-tibiafibular-fractures-region
#6
Guo-Fu Chen, Chun-Li Xu, Bin Wang, Jun-Bo Liang, Chuan-Yi Zhang, Wei Wang
OBJECTIVE: To compare clinical outcomes of external and posterior malleolar fractures associated with compressive articular surface through posteriorlateral incision and posteriormedial incision. METHODS: From January 2012 to January 2015, 52 patients with external and posterior malleolar fractures associated with compressive articular surface were treated by interfix. Among them, 24 patients were treated through posteriourlateral incision, including 16 males and 8 females, aged from 20 to 65 years old with an average of(35...
June 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29401086/comparing-functional-outcomes-after-injury-specific-fixation-of-posterior-malleolar-fractures-and-equivalent-ligamentous-injuries-in-rotational-ankle-fractures
#7
Ashley E Levack, Stephen J Warner, Elizabeth B Gausden, David L Helfet, Dean G Lorich
OBJECTIVES: To evaluate the effect of posterior bony versus ligamentous injury pattern on functional outcomes in operatively treated rotational ankle fractures. DESIGN: Retrospective cohort analysis of prospective registry. SETTING: Academic Level I trauma center. PATIENTS/PARTICIPANTS: Operatively treated supination external rotation IV and pronation external rotation IV ankle fractures. INTERVENTION: Lateral malleolus plate fixation with either posterior malleolus (PM) plate fixation or posterior inferior tibiofibular ligament (PITFL) repair...
April 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29305457/the-role-of-a-small-posterior-malleolar-fragment-in-trimalleolar-fractures-a-biomechanical-study
#8
J Evers, M Fischer, I Zderic, D Wähnert, R G Richards, B Gueorguiev, M J Raschke, S Ochman
AIMS: The aim of this study was to investigate the effect of a posterior malleolar fragment (PMF), with < 25% ankle joint surface, on pressure distribution and joint-stability. There is still little scientific evidence available to advise on the size of PMF, which is essential to provide treatment. To date, studies show inconsistent results and recommendations for surgical treatment date from 1940. MATERIALS AND METHODS: A total of 12 cadaveric ankles were assigned to two study groups...
January 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29305233/anterolateral-distal-tibia-locking-plate-osteosynthesis-and-their-ability-to-capture-otac3-pilon-fragments
#9
Arun Aneja, T David Luo, Boshen Liu, Molina Domingo, Kerry Danelson, Jason J Halvorson, Eben A Carroll
BACKGROUND: Intra-articular Pilon fractures remain therapeutically challenging due to osteochondral fracturing and comminution, marginal impaction, and insult to the soft tissue envelope. The purpose of this study was to compare the efficacy of anterolateral distal tibial locking plates in capturing main fracture fragments in tibial plafond fractures. METHODS: From May 2011 to Dec 2015, 169 OTA C-type pilon fractures met inclusion and exclusion criteria with computed tomographic (CT) scans performed prior to definitive fixation...
February 2018: Injury
https://www.readbyqxmd.com/read/29232164/effect-of-ct-on-management-plan-in-malleolar-ankle-fractures
#10
Ashwani Kumar, Puneet Mishra, Anupama Tandon, Rajesh Arora, Manish Chadha
BACKGROUND: Conventionally ankle fractures have been classified using plain radiographs. Because of complex 3-dimensional anatomy and complexity of injuries, plain radiographs may not always be able to clearly depict the complete fracture pattern. There is a paucity of studies regarding the utility of computed tomography (CT) scanning in malleolar ankle fractures (MAFs). Hence, we conducted this study to further understand the role of the CT scan in MAFs. METHODS: A prospective study of 56 consecutive malleolar ankle fractures was conducted...
January 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29158644/injury-mechanism-fracture-characteristics-and-clinical-treatment-of-pilon-fracture-with-intact-fibula-a-retrospective-study-of-23-pilon-fractures
#11
Jiang Liangjun, Zheng Qiang, Li Hang, Pan Zhijun
Objective: The effect of intact fibula on pilon fracture is not completely elucidated. We retrospectively analysed pilon fractures with intact fibula at our hospital over a 4 year period to understand the injury mechanism, fracture characteristics, treatment strategy and prognosis of this fracture. Methods: Pilon fracture patients with intact fibula treated in our hospital from January 2010 to December 2014 were observed. OA/ATO fracture type, Ruedi-Allgower classification and fracture characteristics were summarised...
November 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29149741/the-isolated-posterior-malleolar-fracture-and-syndesmotic-instability-a-case-report-and-review-of-the-literature
#12
Diederik P J Smeeing, Roderick M Houwert, Moyo C Kruyt, Falco Hietbrink
INTRODUCTION: Ankle fractures are among the most common type of fractures in the lower extremity. A posterior malleolar fracture is frequently part of a more complex ankle fracture and only in rare cases it occurs as isolated injury. Posterior malleolar fractures often occur with associated injuries, such as a Maisonneuve fracture or with bi- or trimalleolar ligamentous injuries. Knowledge about these associated injuries is essential to prevent missed diagnoses. The aim of this article is to describe the isolated posterior malleolar fracture, the possible associated injuries, the diagnostic work-up and therapeutic consequences...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29092989/an-evolution-in-the-management-of-fractures-of-the-ankle-safety-and-efficacy-of-posteromedial-approach-for-haraguchi-type-2-posterior-malleolar-fractures
#13
N Bali, I Aktselis, A Ramasamy, S Mitchell, P Fenton
AIMS: There has been an evolution recently in the management of unstable fractures of the ankle with a trend towards direct fixation of a posterior malleolar fragment. Within these fractures, Haraguchi type 2 fractures extend medially and often cannot be fixed using a standard posterolateral approach. Our aim was to describe the posteromedial approach to address these fractures and to assess its efficacy and safety. PATIENTS AND METHODS: We performed a review of 15 patients with a Haraguchi type 2 posterior malleolar fracture which was fixed using a posteromedial approach...
November 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/29058951/stability-of-the-syndesmosis-after-posterior-malleolar-fracture-fixation
#14
Matthew A Miller, Tyler C McDonald, Matthew L Graves, Clay A Spitler, George V Russell, LaRita C Jones, William Replogle, Jeremy A Wise, Josie Hydrick, Patrick F Bergin
BACKGROUND: We sought to define the rate of syndesmotic instability after anatomic reduction of the posterior malleolus when posterior stabilization of a trimalleolar or trimalleolar equivalent ankle fracture was chosen vs when a supine position and initially conservative management of the posterior elements was chosen. METHODS: The types of syndesmotic and posterior malleolar fixation used to treat adult patients with ankle fractures involving the posterior malleolus at our level I trauma center were retrospectively assessed (N = 198)...
January 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/28979587/operative-treatment-of-posterior-malleolar-fractures
#15
Xiaojun Duan, Anish R Kadakia
Fractures of the posterior malleolus can occur in conjunction with fibular and medial malleolar fractures or in isolation. The indications for fixation of the posterior malleolus remain controversial except for the fragment sizes. A number of different surgical approaches and techniques for internal fixation of posterior malleolar fractures have been reported. Newer techniques such as direct exposure and plating of the posterior malleolus are chosen more frequently than traditional techniques of indirect reduction and percutaneous screw fixation...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28952792/comparison-of-ankle-joint-visualization-between-the-70%C3%A2-and-30%C3%A2-arthroscopes-a-cadaveric-study
#16
Ichiro Tonogai, Fumio Hayashi, Yoshihiro Tsuruo, Koichi Sairyo
Ankle arthroscopy is an important diagnostic and therapeutic tool. Arthroscopic ankle surgery for anterior ankle impingement or osteochondral lesions (OCLs) is mostly performed with a 30° arthroscope; however, visualization of lesions is sometimes difficult. This study sought to compare ankle joint visualization between 70° and 30° arthroscopes and clarify the effectiveness of 70° arthroscopy. Standard anterolateral and anteromedial portals were placed with 4-mm 70° or 30° angled arthroscopes in a fresh 77-year-old male cadaveric ankle...
February 2018: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28758439/pathoanatomy-and-associated-injuries-of-posterior-malleolus-fracture-of-the-ankle
#17
Lyndon W Mason, William J Marlow, James Widnall, Andrew P Molloy
BACKGROUND: We present a classification system that progresses in severity, indicates the pathomechanics that cause the fracture and therefore guides the surgeon to what fixation will be necessary by which approach. METHODS: The primary posterior malleolar fracture fragments were characterized into 3 groups. A type 1 fracture was described as a small extra-articular posterior malleolar primary fragment. Type 2 fractures consisted of a primary fragment of the posterolateral triangle of the tibia (Volkmann area)...
November 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28758422/biomechanical-study-of-screw-fixation-and-plate-fixation-of-a-posterior-malleolar-fracture-in-a-simulation-of-the-normal-gait-cycle
#18
Xu Wang, Jianwen Yin, Chao Zhang, Chen Wang, Xiang Geng, Xin Ma, Jiazhang Huang, Chengwei Wang, Xue Wang
BACKGROUND: Fixation of posterior malleolar fractures with plates or screws is under debate. A fatigue loading system and a spatial motion capture system were used in this study to evaluate a posterior malleolar fracture model. METHODS: Thirty-six below-knee specimens with a single posterolateral fragment (Haraguchi I) type posterior malleolar fracture models were randomly divided into 2 groups. Two parallel-placed 3.5-mm partially threaded titanium alloy screws were used in Group A to fix the fractures, while anatomical plates were used in Group B...
October 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28714535/neandertal-talus-bones-from-el-sidr%C3%A3-n-site-asturias-spain-a-3d-geometric-morphometrics-analysis
#19
Antonio Rosas, Anabel Ferrando, Markus Bastir, Antonio García-Tabernero, Almudena Estalrrich, Rosa Huguet, Daniel García-Martínez, Juan Francisco Pastor, Marco de la Rasilla
OBJECTIVES: The El Sidrón tali sample is assessed in an evolutionary framework. We aim to explore the relationship between Neandertal talus morphology and body size/shape. We test the hypothesis 1: talar Neandertal traits are influenced by body size, and the hypothesis 2: shape variables independent of body size correspond to inherited primitive features. MATERIALS AND METHODS: We quantify 35 landmarks through 3D geometric morphometrics techniques to describe H...
October 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28697881/incarceration-of-the-posterior-tibial-tendon-in-an-isolated-comminuted-medial-malleolus-fracture
#20
David Jaffe, Matthew W Christian, Annie Weber, R Frank Henn
Isolated medial malleolar fractures are a less common presentation of an ankle fracture. Treatment is not universally accepted, although many have agreed that any displacement warrants anatomic reduction and fixation. We present a case of an isolated, comminuted medial malleolar fracture that was displaced secondary to entrapment of the posterior tibial tendon between the fracture fragments requiring surgical intervention. The patient was treated with prompt open reduction and internal fixation and had an excellent functional outcome at 1 year...
November 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
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