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https://www.readbyqxmd.com/read/29792785/two-cases-of-combined-patellar-tendon-avulsion-from-the-tibia-and-patella
#1
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/29792104/association-of-hip-and-foot-factors-with-patellar-tendinopathy-jumper-s-knee-in-athletes
#2
Luciana D Mendonça, Juliana M Ocarino, Natália F N Bittencourt, Luciana G Macedo, Sérgio T Fonseca
Study Design Clinical measurement, cross-sectional. Background Investigations on the causes of patellar tendinopathy (PT) should consider impairments at the hip and foot/ankle since they are known to influence movement patterns and affect patellar tendon loading. Objectives To investigate, by means of CART analysis, impairments of the hip and foot/ankle that are associated with PT in volleyball and basketball athletes. Methods One-hundred and ninety athletes were assessed for impairments of the hip and foot/ankle including: shank-forefoot alignment (SFA), ankle dorsiflexion range of motion (DF ROM), iliotibial band flexibility, passive hip internal rotation (IR) ROM, and hip external rotator (ER) and hip abductor isometric strength...
May 23, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29789255/combined-tibial-tubercle-osteotomy-and-medial-patellofemoral-ligament-reconstruction-for-recurrent-lateral-patellar-instability-in-patients-with-multiple-anatomic-risk-factors
#3
Melissa M Allen, Aaron J Krych, Nick R Johnson, Rohith Mohan, Michael J Stuart, Diane L Dahm
PURPOSE: To report the outcomes for combined tibial tubercle osteotomy (TTO) and medial patellofemoral ligament (MPFL) reconstruction and assess for potential risk factors for recurrent instability and/or poor outcomes. METHODS: The medical record at our institution was reviewed for patients treated with MPFL reconstruction and TTO for recurrent lateral patellar instability from 1998 to 2014. Preoperative imaging was assessed for trochlear dysplasia according to the Dejour classification (high grade = B, C, D) and the presence of patella alta using the Caton-Deschamps ratio (>1...
May 19, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29788686/augmented-reality-and-dynamic-infrared-thermography-for-perforator-mapping-in-the-anterolateral-thigh
#4
Ignacio Javier Cifuentes, Bruno Leonardo Dagnino, María Carolina Salisbury, María Eliana Perez, Claudia Ortega, Daniela Maldonado
Dynamic infrared thermography (DIRT) has been used for the preoperative mapping of cutaneous perforators. This technique has shown a positive correlation with intraoperative findings. Our aim was to evaluate the accuracy of perforator mapping with DIRT and augmented reality using a portable projector. For this purpose, three volunteers had both of their anterolateral thighs assessed for the presence and location of cutaneous perforators using DIRT. The obtained image of these "hotspots" was projected back onto the thigh and the presence of Doppler signals within a 10-cm diameter from the midpoint between the lateral patella and the anterior superior iliac spine was assessed using a handheld Doppler device...
May 2018: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/29787583/gender-associated-muscle-tendon-adaptations-to-resistance-training
#5
Gerard McMahon, Christopher I Morse, Keith Winwood, Adrian Burden, Gladys L Onambélé
PURPOSE: To compare the relative changes in muscle-tendon complex (MTC) properties following high load resistance training (RT) in young males and females, and determine any link with circulating TGFβ-1 and IGF-I levels. METHODS: Twenty-eight participants were assigned to a training group and subdivided by sex (T males [TM] aged 20±1 year, n = 8, T females [TF] aged 19±3 year, n = 8), whilst age-matched 6 males and 6 females were assigned to control groups (ConM/F)...
2018: PloS One
https://www.readbyqxmd.com/read/29785448/patella-alta-and-patellar-subluxation-might-lead-to-early-failure-with-inlay-patello-femoral-joint-arthroplasty
#6
J Beckmann, C Merz, J Huth, B Rath, C Schnurr, E Thienpont
PURPOSE: With the growing interest in resurfacing procedures, several new implants have been recently introduced for isolated patello-femoral joint arthroplasty (PFA). However, not much data are available for these new techniques or about the right indications for each type of implant. METHODS: Out of a retrospective cohort of 20 inlay PFA, 11 PFA with an elevated Insall-Salvati index and an increased patello-femoral congruence angle showed an initial satisfactory result, but presented thereafter with recurrent pain and "clunk" phenomena...
May 21, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29782440/management-for-simultaneous-patella-tendon-and-anterior-cruciate-ligament-ruptures-a-systematic-review-of-available-literature
#7
Alexander Handel Matthews, Ethan James Fraser, Benjamin Parkinson
BACKGROUND: Combined rupture of the anterior cruciate ligament (ACL) and patella tendon (PT) is a rare injury pattern. Currently little evidence exists to help guide management decisions for these patients. METHODS: A systematic literature search was conducted using PubMed (MEDLINE) and Scopus (EMBASE, MEDLINE) for all articles reporting on combined rupture of the anterior cruciate ligament (ACL) and patella tendon (PT). The characteristic injury mechanisms, common presentation findings and outcomes of simultaneous and staged treatment strategies were determined to provide guidance for the management of this uncommon injury pattern...
May 15, 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29779141/socioeconomic-factors-and-individual-lifestyles-influencing-the-incidence-of-patella-fractures-a-national-population-based-survey-in-china
#8
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/29776814/metallosis-in-cemented-titanium-alloy-total-knee-arthroplasty-without-apparent-metal-on-metal-articulation
#9
James Ho, John Mahajan, Martin Taylor, Ashlyn Byers, Paul Arauz, Young-Min Kwon
BACKGROUND: Metallosis is an uncommon phenomenon observed in late failures of cemented total knee arthroplasty (TKA), and it is rarely seen in the absence of metal-on-metal articulation. METHODS: We report the case of a TKA patient with cemented titanium-alloy components and a polyethylene patella that was revised for early loosening with intra-operative severe metallosis. RESULTS: We found that loosening and severe metallosis were associated with methacrylate particle abrasion on titanium alloy surfaces...
May 16, 2018: Knee
https://www.readbyqxmd.com/read/29775918/determining-gender-by-taking-measurements-from-magnetic-resonance-images-of-the-patella
#10
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/29774599/deep-convolutional-neural-network-for-segmentation-of-knee-joint-anatomy
#11
Zhaoye Zhou, Gengyan Zhao, Richard Kijowski, Fang Liu
PURPOSE: To describe and evaluate a new segmentation method using deep convolutional neural network (CNN), 3D fully connected conditional random field (CRF), and 3D simplex deformable modeling to improve the efficiency and accuracy of knee joint tissue segmentation. METHODS: A segmentation pipeline was built by combining a semantic segmentation CNN, 3D fully connected CRF, and 3D simplex deformable modeling. A convolutional encoder-decoder network was designed as the core of the segmentation method to perform high resolution pixel-wise multi-class tissue classification for 12 different joint structures...
May 17, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29772995/bilateral-spontaneous-quadriceps-tendon-ruptures-after-staged-bilateral-total-knee-arthroplasties-a-case-report
#12
Marine Coste, Jared M Newman, Neil V Shah, Ahmed M Eldib, Preston W Grieco, Aditya V Maheshwari
Quadriceps tendon ruptures are rare complications of total knee arthroplasty (TKA) and may be associated with preexisting tendon degeneration, vascular injuries during surgery, damage to the quadriceps tendon with over resection of the patella, or incomplete healing after a particular surgical approach. Moreover, postoperative causes include tissue necrosis due to component malalignment, trauma, and infection. Patient factors such as chronic systemic diseases, medications, increased body weight, and sedentary lifestyle could also be responsible...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29770878/slight-under-correction-following-total-knee-arthroplasty-for-a-valgus-knee-results-in-similar-clinical-outcomes
#13
Sung-Sahn Lee, Hyeon Lee, Dae-Hee Lee, Young-Wan Moon
BACKGROUND: Restoration of correct coronal alignment is one of the main goals of total knee arthroplasty (TKA). Traditionally, TKA has been considered successful when a neutral mechanical hip-knee-ankle (HKA) axis within 3° is achieved. Recent studies have reported no differences or improved clinical outcomes following a slight under-correction of the HKA axis for a varus knee. However, the influence of under-correction of a valgus knee has not been reported. This study investigated the influence of post-operative HKA alignment in TKA patients with valgus deformity on clinical outcomes...
May 16, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29770312/state-of-the-art-of-prostatic-arterial-embolization-for-benign-prostatic-hyperplasia
#14
REVIEW
Mario Petrillo, Filippo Pesapane, Enrico Maria Fumarola, Ilaria Emili, Marzia Acquasanta, Francesca Patella, Salvatore Alessio Angileri, Umberto G Rossi, Igor Piacentini, Antonio Maria Granata, Anna Maria Ierardi, Gianpaolo Carrafiello
Prostatectomy via open surgery or transurethral resection of the prostate (TURP) is the standard treatment for benign prostatic hyperplasia (BPH). Several patients present contraindication for standard approach, individuals older than 60 years with urinary tract infection, strictures, post-operative pain, incontinence or urinary retention, sexual dysfunction, and blood loss are not good candidates for surgery. Prostatic artery embolization (PAE) is emerging as a viable method for patients unsuitable for surgery...
April 2018: Gland Surgery
https://www.readbyqxmd.com/read/29770310/interventional-radiology-of-the-adrenal-glands-current-status
#15
REVIEW
Anna Maria Ierardi, Mario Petrillo, Francesca Patella, Pierpaolo Biondetti, Enrico Maria Fumarola, Salvatore Alessio Angileri, Filippo Pesapane, Antonio Pinto, Gianlorenzo Dionigi, Gianpaolo Carrafiello
As more and more adrenal neoplasms are found incidentally or symptomatically, the need for interventional procedures has being increasing. In recent years these procedures registered continued steady expansion. Interventional radiology of the adrenal glands comprises angiographic and percutaneous procedures. They may be applied both in benign and in malignant pathologies. The present review reports the current status of indications, techniques results and complications of the image-guided procedures.
April 2018: Gland Surgery
https://www.readbyqxmd.com/read/29770306/the-role-of-interventional-radiology-in-the-treatment-of-epiphora
#16
REVIEW
Francesca Patella, Silvia Panella, Stefania Zannoni, Maria Laura Jannone, Filippo Pesapane, Salvatore Alessio Angileri, Sara Sbaraini, Anna Maria Ierardi, Simone Soldi, Giuseppe Franceschelli, Gianpaolo Carrafiello
Epiphora is a relatively common ophthalmologic affection representing almost 5% of clinical consultations in ophthalmology and it consists in the complete or partial obstruction of nasolacrimal duct, leading to insufficient drainage of tears. The traditional treatment is represented by surgery namely, external dacryocystorhinostomy (DCR). Despite the high success rate DCR has many disadvantages and limitations since it requires general anesthesia, it may arise in a permanent facial scar and it is often affected by the reobstruction of the anastomotic tract by fibrotic scars and osteogenic activity...
April 2018: Gland Surgery
https://www.readbyqxmd.com/read/29770305/the-prostate-cancer-focal-therapy
#17
REVIEW
Filippo Pesapane, Francesca Patella, Enrico Maria Fumarola, Edoardo Zanchetta, Chiara Floridi, Gianpaolo Carrafiello, Chloë Standaert
Despite prostate cancer (PCa) is the leading form of non-cutaneous cancer in men, most patients with PCa die with disease rather than of the disease. Therefore, the risk of overtreatment should be considered by clinicians who have to distinguish between patients with high risk PCa (who would benefit from radical treatment) and patients who may be managed more conservatively, such as through active surveillance or emerging focal therapy (FT). The aim of FT is to eradicate clinically significant disease while protecting key genito-urinary structures and function from injury...
April 2018: Gland Surgery
https://www.readbyqxmd.com/read/29765886/reference-value-for-infrapatellar-branch-of-saphenous-nerve-conduction-study-cadaveric-and-clinical-study
#18
Keon-Tae Kim, Yong-Ki Kim, Jung Ro Yoon, Yundam Ko, Myung Eun Chung
Objective: To determine the optimal stimulation and recording site for infrapatellar branch of saphenous nerve (IPBSN) conduction studies by a cadaveric study, and to confirm that obtained location is practically applicable to healthy adults. Methods: Twelve lower limbs from six cadavers were studied. We defined the optimal stimulation site as the point IPBSN exits the sartorius muscle and the distance or ratio were measured on the X- and Y-axis based on the line connecting the medial and lateral poles of the patella...
April 2018: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29752638/avoiding-complications-with-mpfl-reconstruction
#19
REVIEW
Marvin K Smith, Brian C Werner, David R Diduch
PURPOSE OF REVIEW: To discuss the potentially significant complications associated with medial patellofemoral ligament (MPFL) reconstruction. Additionally, to review the most current and relevant literature with an emphasis on avoiding these potential complications. RECENT FINDINGS: Multiple cadaveric studies have characterized the anatomy of the MPFL and the related morphologic abnormalities that contribute to recurrent lateral patellar instability. Such abnormalities include patella alta, excessive tibial tubercle to trochlear grove (TT-TG) distance, trochlear dysplasia, and malalignment...
May 12, 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29752509/current-concepts-and-future-perspectives-in-computer-assisted-navigated-total-knee-replacement
#20
REVIEW
Tomoyuki Matsumoto, Naoki Nakano, John E Lawrence, Vikas Khanduja
BACKGROUND: Total knee replacements (TKR) aim to restore stability of the tibiofemoral and patella-femoral joints and provide relief of pain and improved quality of life for the patient. In recent years, computer-assisted navigation systems have been developed with the aim of reducing human error in joint alignment and improving patient outcomes. METHODS: We examined the current body of evidence surrounding the use of navigation systems and discussed their current and future role in TKR...
May 12, 2018: International Orthopaedics
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