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https://www.readbyqxmd.com/read/29990602/patellar-complications-after-total-knee-arthroplasty
#1
REVIEW
Sophie Putman, Florian Boureau, Julien Girard, Henri Migaud, Gilles Pasquier
Patellar complications are a source of poor total knee arthroplasty (TKA) outcomes that can require re-operation or prosthetic revision. Complications can occur with or without patellar resurfacing. The objective of this work is to answer six questions. (1) Have risk factors been identified, and can they help to prevent patellar complications? Patellar complications are associated with valgus, obesity, lateral retinacular release, and a thin patella. Selecting a prosthetic trochlea that will ensure proper patellar tracking is important...
July 7, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29934737/five-pointed-star-lattice-sutures-for-fixation-of-patella-transverse-fractures-a-clinical-study
#2
Xiaozheng Tang, Yayun Liu, Hongyan Wu, Feipeng Gong, Yuxu Li, Hong Zeng, Baofu Yu
INTRODUCTION: Fixation of displaced patella fractures with metal implants may be associated with implant failure, post-operative pain, and high re-operation rate. This study reports preliminary clinical results of using five-pointed star lattice sutures for the management of patella transverse fractures. METHODS: A five-pointed star lattice suture configuration was produced intraoperatively, and 25 patients with patella transverse fractures were treated with this newly designed sutures fixation...
June 22, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29929694/treating-patella-fractures-with-a-locking-patella-plate-first-clinical-results
#3
Simone Wurm, Volker Bühren, Peter Augat
The standard treatment for patella fractures is tension band wiring. However, with tension band wiring anatomical reduction and rigid fixation can be challenging and the clinical outcome after patella fracture is often not satisfying. The purpose of this prospective clinical observation was to evaluate the clinical outcome in patients with patella fractures treated with an angular stable patella plate. Between 2011 and 2015 a total of 67 patients were treated with an angular stable patella plate. Outcome in these patients was evaluated by the Knee Outcome Survey Activities of Daily Living Scale (KOS-ADL) and range of motion of the knee joint was assessed...
June 2018: Injury
https://www.readbyqxmd.com/read/29928105/an-unusual-presentation-of-patella-and-fifth-metatarsal-base-fractures-in-a-patient-with-osteopetrosis
#4
Anuj Chawla, Ernest B K Kwek
No abstract text is available yet for this article.
June 2018: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29928102/bicondylar-conjoint-hoffa-s-fracture-with-patella-entrapped-in-the-fracture-a-rare-case-report
#5
Bushu Harna, Divyanshu Dutt Dwivedi, Hemant Kumar Pippal, Dhananjaya Sabat
Bicondylar Hoffa fracture involving both the femoral condyles is a rare injury. Conjoint variety with intact bone bridge between condyles in intercondylar notch area is even rare. We report a conjoint variety of bicondylar open grade III A Hoffa's fracture with patella entrapped in the fracture with quadriceps rupture in an adult which was surgically treated with initial debridement and later open reduction with fixation and quadriceps repair. The final outcome at 1 year post injury is satisfactory. To the best of our knowledge, no such case has been reported till date in English literature...
June 2018: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29905046/-effectiveness-of-high-strength-suture-fixation-in-treatment-of-patellar-transverse-fracture
#6
Jian Wang, Xiaobo Tang, Peilong Dong, Zhiyun Li
Objective: To explore the effectiveness of high strength suture fixation in treatment of patellar transverse fracture. Methods: Between June 2014 and June 2016, 38 patients with the patellar transverse fracture were treated with high strength suture internal fixation. There were 24 males and 14 females with the age of 26 to 64 years (mean, 45 years). There were 6 cases of accident injury and 32 cases of crashing injury. The time interval between injury and surgery was 2-8 days (mean, 5 days)...
June 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29886008/medial-patellofemoral-ligament-repair-restores-stability-in-pediatric-patients-when-compared-to-reconstruction
#7
Jessica Bryant, Nirav Pandya
BACKGROUND: Pediatric patellar instability has a high recurrence rate with non-operative care, and medial patellofemoral ligament (MPFL) reconstruction has known complications. MPFL repair offers an alternative method to restore patellar stability. This study's purpose was to assess the outcomes of MPFL repair in a pediatric cohort, and to compare these outcomes to a cohort of pediatric patients who underwent MPFL reconstruction. METHODS: One surgeon performed 16 MPFL repairs on pediatric patients for traumatic patellar instability, with an average follow-up of 1...
June 6, 2018: Knee
https://www.readbyqxmd.com/read/29881694/medial-patellofemoral-ligament-reconstruction-using-all-soft-suture-anchors-for-patellar-fixation
#8
Justin L Makovicka, David E Hartigan, Karan A Patel, Sailesh V Tummala, Anikar Chhabra
The medial patellofemoral ligament (MPFL), which is critical for both patellar stability and normal kinematics of the patellofemoral joint, is disrupted in most patellar dislocations. Consequently, MPFL reconstruction is advocated in recurrent dislocations to restore native patellar constraints. Fixation of the MPFL graft to the medial border of the patella can be achieved through various methods, each with its own benefits and drawbacks. We present a technique for MPFL fixation to the patella using all-soft suture anchors, theoretically decreasing the risk of patellar fracture and articular surface violation...
March 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29843200/safety-and-efficacy-of-6-2-mm-patellar-button-in-resurfacing-less-than-20-mm-thin-patella-a-matched-pair-analysis
#9
Anoop Jhurani, Piyush Agarwal, Mukesh Aswal, Purvi Saxena, Nidhi Singh
Purpose: Restoring the native patellar thickness after patellar resurfacing provides optimal function of the knee after arthroplasty and minimises complications related to the patellofemoral articulation. The aim of this study was to assess the usefulness of a thin patellar button (6.2 mm) in patients with a patella thickness of less than 20 mm during total knee arthroplasty. Materials and Methods: This is a retrospective case control study. A total of 54 female patients with an intraoperative patellar thickness of <20 mm, resurfaced with a patellar button of 6...
June 1, 2018: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29806387/-a-finite-element-analysis-of-petal-shaped-poly-axial-locking-plate-fixation-in-treatment-of-y-shaped-patellar-fracture
#10
Depeng Meng, Yueping Ouyang, Chunlin Hou
Objective: To establish the finite element model of Y-shaped patellar fracture fixed with titanium-alloy petal-shaped poly-axial locking plate and to implement the finite element mechanical analysis. Methods: The three-dimensional model was created by software Mimics 19.0, Rhino 5.0, and 3-Matic 11.0. The finite element analysis was implemented by ANSYS Workbench 16.0 to calculate the Von-Mises stress and displacement. Before calculated, the upper and lower poles of the patella were constrained...
December 1, 2017: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29793461/treatment-of-displaced-transverse-fractures-of-the-patella-modified-tension-band-wiring-technique-with-or-without-augmented-circumferential-cerclage-wire-fixation
#11
Tien-Yu Yang, Tsan-Wen Huang, Po-Yao Chuang, Kuo-Chin Huang
BACKGROUND: Displaced transverse fractures of the body of the patella are usually associated with disruption of extensor mechanism and should be fixed surgically. The most common method is a tension band wiring (TBW) technique. Some surgeons concurrently employ an augmented circumferential cerclage wiring (ACCW) technique to help fracture stabilization and aid in fracture healing; however, its role and effect on the treatment outcomes is unclear. METHODS: We performed a STROBE-compliant retrospective observational cohort study on all cases of acute closed patella fracture that were treated at our institution between 2006 and 2012...
May 24, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29792785/two-cases-of-combined-patellar-tendon-avulsion-from-the-tibia-and-patella
#12
Viachaslau Bradko, William T Stoll, Lee S Haruno, Scott B Rosenfeld, Scott D McKay
Avulsion fractures of the inferior pole of the patella and proximal tibial apophysis are independently rare injuries. They occur in children due to the relative weakness of the apophyseal cartilage compared to the ligaments and tendons. The combination of these two fractures, is exceedingly rare, with only a few previously described cases in the literature. Due to the infrequent presentation of this injury, careful examination and consideration of advanced imaging is important for diagnosis and preoperative planning...
2018: SICOT-J
https://www.readbyqxmd.com/read/29779141/socioeconomic-factors-and-individual-lifestyles-influencing-the-incidence-of-patella-fractures-a-national-population-based-survey-in-china
#13
Yanbin Zhu, Song Liu, Wei Chen, Lin Wang, Xiaolin Zhang, Yingze Zhang
BACKGROUND: We aimed to do a national survey on the population-based incidence of patella fractures and related risk factors fracture in China. METHODS: All the data on patella fractures were available from the China National Fracture Survey (CNFS) between January and May in 2015. And in the CNFS, all eligible household members were selected from 24 urban cities and 24 rural counties of eight provinces of China, with stratified random sampling and the probability proportional to size method used...
May 19, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29775918/determining-gender-by-taking-measurements-from-magnetic-resonance-images-of-the-patella
#14
Hacer Yasar Teke, Özge Ünlütürk, Elif Günaydin, Semra Duran, Sait Özsoy
BACKGROUND: A key step in making a positive identification in forensic medicine is the establishment of a biological profile, which involves determining factors such as gender, age, ancestry, and stature. The goal of this study was to determine if gender could be established by taking various measurements of the patella taken from magnetic resonance imaging (MRI) images and analyzing the variations by gender. METHODS: The sample group consisted of 220 patients (110 male and 110 female) whose patella were measured using MRI images of their left knee...
May 8, 2018: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29719010/fat-fracture-a-rare-cause-of-anterior-and-medial-knee-pain-in-a-professional-baseball-player
#15
Ronak M Patel, Lonnie Soloff, Jason Genin, Pamela Lund, Mark S Schickendantz
Blunt trauma to the anterior knee typically results in a contusion or fracture of the patella. Additionally, injury to the extensor mechanism may come from a partial or full disruption of the patellar or quadriceps tendon. A professional baseball player suffered an injury to his knee after he collided with an outfield wall. Acute swelling in the suprapatellar soft tissues concealed a palpable defect, which initially was suspected to be an injury to the quadriceps tendon. Magnetic resonance imaging of the knee revealed an intact extensor mechanism; moreover, a fracture of the subcutaneous fat anterior to the quadriceps tendon was evident and diagnosed as a fat fracture...
April 2018: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29682680/mpfl-in-first-time-dislocators
#16
REVIEW
Beth E Shubin Stein, Simone Gruber, Jacqueline M Brady
PURPOSE OF REVIEW: Historically, the standard of care for patients with an acute patella dislocation has been non-operative with the exception being those with a loose body or osteochondral fracture requiring fixation or removal. RECENT FINDINGS: Recent literature has brought into question this standard of care approach and defined a higher risk subset of first-time dislocators who may benefit from early operative treatment. In addition, these studies suggest that operative treatment not only reduces the risk of recurrence but may improve outcomes overall and specifically in the pediatric population...
June 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29679209/quadriceps-tendon-autograft-medial-patellofemoral-ligament-reconstruction
#17
REVIEW
Christian Fink, Robert Steensen, Peter Gföller, Robert Lawton
PURPOSE: Critically evaluate the published literature related to quadriceps tendon (QT) medial patellofemoral ligament (MPFL) reconstruction. RECENT FINDINGS: Hamstring tendon (HT) MPFL reconstruction techniques have been shown to successfully restore patella stability, but complications including patella fracture are reported. Quadriceps tendon (QT) reconstruction techniques with an intact graft pedicle on the patella side have the advantage that patella bone tunnel drilling and fixation are no longer needed, reducing risk of patella fracture...
June 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29644317/a-rare-case-of-hoffa-fracture-combined-with-lateral-patellar-dislocation
#18
Martin C Jordan, Leonie A Bittrich, Kai Fehske, Rainer H Meffert, Hendrik Jansen
The coronal unicondylar fracture of the distal femur (AO 33-B3) is a rare intraarticular injury within the weight bearing area of the knee, initially described by Albert Hoffa in 1904. We report an unusual combination of a Hoffa fracture with lateral patellar dislocation in a young adult. Our patient sustained the injury by a sudden twist of his leg during sports. He presented clinically with knee swelling, dislocation of the patella, and localized tenderness; unable to bare weight. After plane radiograph confirmed the injury, manual reduction of the patella was done by hyperextension of the knee and medialward pressure...
June 2017: Trauma Case Reports
https://www.readbyqxmd.com/read/29609972/fixed-angle-plate-fixation-of-comminuted-patellar-fractures
#19
Tyler B Moore, Bharat R Sampathi, David P Zamorano, Martin C Tynan, John A Scolaro
INTRODUCTION: Comminuted patella fractures are uncommon and difficult fractures to manage. Multiple treatment modalities have been suggested, with little clinical data to support practice. Recent biomechanical and technical investigations have described successful plate fixation of comminuted patella fractures. The purpose of this study was to evaluate radiographic, clinical and functional outcome of comminuted patella fractures treated with a fixed angle locking plates. We believe stable fixation, which results in successful fracture union and functional recovery, can be achieved with this technique...
June 2018: Injury
https://www.readbyqxmd.com/read/29600681/-imaging-findings-of-bone-infarction-in-children-with-systemic-lupus-erythematosus
#20
Yu Zhang, Xiao-Min Duan, Hai-Bing Mei
OBJECTIVE: To investigate diagnostic value of MRI, X ray and CT for bone infarction in children with systemic lupus erythematosus. METHODS: Eleven systemic lupus erythematosus children with bone infarction were retrospectively analyzed from January 2015 to January 2017 , and tested by MRI, X-ray and CT. Among them, including 1 male and 10 females aged from 6 to 16 years old with an average of 13 years old. All patients were detected by MRI, 9 patients were detected by X-ray and 3 patients were detected by CT, imaging findings were analyzed...
March 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
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