keyword
MENU ▼
Read by QxMD icon Read
search

patellar

keyword
https://www.readbyqxmd.com/read/28102813/intramedullary-amputation-neuroma-a-case-report-and-review-of-the-literature
#1
Laura Stone McGuire, Mandana Behbahini, Sumit Das, David Loeffler, Peter Burger, Herbert Engelhard, Tibor Valyi-Nagy, Ankit Mehta
BACKGROUND AND IMPORTANCE: Amputation neuromas consist of non-neoplastic collections of myelinated axons and Schwann cells and typically arise in injured peripheral nerves. Rarely, however, neuromas occur within the spinal cord. Intramedullary amputation neuromas have been described both with and without a history of trauma within the peripheral nervous system. We report a rare case of an isolated intramedullary spinal cord amputation neuroma. CLINICAL PRESENTATION: This 43-year-old man presented with progressive and severe gait deterioration for ~ 7 years...
January 19, 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/28100411/comparison-of-mid-term-results-between-conversion-total-knee-arthroplasties-following-closed-wedge-high-tibial-osteotomy-and-primary-total-knee-arthroplasties-a-matched-pair-study-including-patellar-symptom-and-position
#2
Dae Kyung Bae, Sang Jun Song, Cheol Hee Park, Hu Liang, Jung Kwon Bae
BACKGROUND: The purpose of this study was to compare mid-term clinical and radiographic results of conversion total knee arthroplasties (TKA) following a closed-wedge high tibial osteotomy (HTO) and primary TKAs. METHODS: A total of 32 conversion TKAs (29 patients) were compared with a matched control group of patients who had undergone primary TKA. The clinical results were evaluated using the Knee Society Knee and Function score, the Western Ontario and McMaster Universities score, patella score, and range of motion (ROM)...
January 16, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28094763/measuring-the-effect-of-femoral-malrotation-on-knee-joint-biomechanics-for-total-knee-arthroplasty-using-computational-simulation
#3
K-T Kang, Y-G Koh, J Son, O-R Kwon, C Baek, S H Jung, K K Park
OBJECTIVES: Malrotation of the femoral component can result in post-operative complications in total knee arthroplasty (TKA), including patellar maltracking. Therefore, we used computational simulation to investigate the influence of femoral malrotation on contact stresses on the polyethylene (PE) insert and on the patellar button as well as on the forces on the collateral ligaments. MATERIALS AND METHODS: Validated finite element (FE) models, for internal and external malrotations from 0° to 10° with regard to the neutral position, were developed to evaluate the effect of malrotation on the femoral component in TKA...
November 2016: Bone & Joint Research
https://www.readbyqxmd.com/read/28094422/predicting-the-need-for-trochleoplasty-in-canine-patellar-luxation-using-pre-and-intra-operative-assessments-of-trochlear-depth
#4
Julie Skovgaard Orthmand Hansen, Ken Lindeblad, Lene Buelund, James Miles
OBJECTIVES: To evaluate the repeatability and reproducibility of ultrasonographic femoral trochlear depth measurements and to compare ultrasonographic and intra-operative evaluations of femoral trochlear depth for predictive value in selecting trochleoplasty. METHODS: Repeatability and reproducibility of an ultrasonographic protocol were tested in a preclinical cadaveric study. Clinical patients undergoing corrective surgery for patellar luxation were evaluated preoperatively with ultrasound and intra-operatively using a depth gauge...
January 17, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28094421/biomechanical-evaluation-of-simulated-feline-patellar-fracture-repairs
#5
Mark Longley, Sorrel Langley-Hobbs, John Tarlton
OBJECTIVE: To investigate four techniques for stabilization of feline patellar fracture. METHODS: Feline cadaveric stifles with simulated patellar fracture were stabilized with one of four techniques: Group A - circumferential wire, group B - figure-of-eight wire, group C - combined figure-of-eight and circumferential wire, group D - pin and tension band wire. All repairs were subjected to a period of cyclic loading prior to load to failure testing. Experiments were recorded by video capture to determine load at failure and failure mode...
January 17, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28089467/the-evolution-of-implant-design-decreases-the-incidence-of-lateral-release-in-primary-total-knee-arthroplasty
#6
Jonathan E Webb, Heidi Y Yang, Jamie E Collins, Elena Losina, Thomas S Thornhill, Jeffrey N Katz
BACKGROUND: Appropriate balancing of the patellofemoral joint (PFJ) using a lateral release can help to prevent patellar instability in total knee arthroplasty (TKA). Contemporary total knee implant designs are characterized by enhanced trochlear geometry more similar to native knee anatomy to minimize instability and reduce utilization of a lateral release. METHODS: We retrospectively reviewed consecutive TKA cases from a single senior surgeon's practice with 3 successive total knee designs: the Press-Fit Condylar (PFC), the Sigma, and the ATTUNE (DePuy, Warsaw, IN)...
December 14, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28077355/no-evidence-for-the-use-of-stem-cell-therapy-for-tendon-disorders-a-systematic-review
#7
Haiko I M F L Pas, Maarten H Moen, Hidde J Haisma, Marinus Winters
INTRODUCTION: Stem cells have emerged as a new treatment option for tendon disorders. We systematically reviewed the current evidence for stem cell therapy in tendon disorders. METHODS: Randomised and non-randomised controlled trials, cohort studies and case series with a minimum of 5 cases were searched in MEDLINE, CENTRAL, EMBASE, CINAHL, PEDro and SPORTDiscus. In addition, we searched grey literature databases and trial registers. Only human studies were included and no time or language restrictions were applied to our search...
January 11, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28075434/diagnosis-and-surgical-correction-of-congenital-bilateral-patellar-luxation-in-two-dwarf-zebu-calves
#8
Göknil Kalayci, Cagri Binici, Julia Tünsmeyer, Silke Stein, Ahmad Al Aiyan, Kerstin Müller, Leo Brunnberg
This case study presents two female dwarf zebu calves with permanent bilateral flexion of the stifle joint secondary to bilateral congenital lateral patellar luxation. The patella could be manually repositioned bilaterally in the first calf (14 days old), but re-luxated immediately with release of manual pressure (luxation grade III). In the second calf (28 days old) both patellae were permanently luxated laterally (grade IV). The right and left stifles of each calf were operated in a staged procedure with approximately 14 days between surgery of the two sides...
January 11, 2017: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
https://www.readbyqxmd.com/read/28074440/distal-femoral-extension-and-shortening-osteotomy-as-a-part-of-multilevel-surgery-in-children-with-cerebral-palsy
#9
Matthias C M Klotz, Klemens Hirsch, Daniel Heitzmann, Michael W Maier, Sebastien Hagmann, Thomas Dreher
BACKGROUND: There are several reports describing an increase in anterior pelvic tilt after hamstring lengthening in children with cerebral palsy (CP). Distal femoral extension and shortening osteotomy (DFESO) is an alternative treatment for correction of fl exed knee gait, but investigations analyzing outcome and infl uence on adjacent joint are few in the literature. The purpose of this study was to analyze the influence of DFESO on knee and pelvis in children with CP. Furthermore, it was of interest if an additional patellar tendon advancement (PA) infl uences outcome...
December 23, 2016: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28069450/micromechanical-modeling-of-rate-dependent-behavior-of-connective-tissues
#10
A Fallah, M T Ahmadian, K Firozbakhsh, M M Aghdam
In this paper, a constitutive and micromechanical model for prediction of rate-dependent behavior of connective tissues (CTs) is presented. Connective tissues are considered as nonlinear viscoelastic material. The rate-dependent behavior of CTs is incorporated into model using the well-known quasi-linear viscoelasticity (QLV) theory. A planar wavy representative volume element (RVE) is considered based on the tissue microstructure histological evidences. The presented model parameters are identified based on the available experiments in the literature...
January 7, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28068982/effect-of-proximal-translation-of-the-osteotomized-tibial-tuberosity-during-tibial-tuberosity-advancement-on-patellar-position-and-patellar-ligament-angle
#11
Jack D Neville-Towle, Mariano Makara, Kenneth A Johnson, Katja Voss
BACKGROUND: Cranial cruciate ligament insufficiency is a common orthopaedic problem in canine patients. This cadaveric and radiographic study was performed with the aim of determining the effect of proximal translation of the tibial tuberosity during tibial tuberosity advancement (TTA) on patellar position (PP) and patellar ligament angle (PLA). RESULTS: Disarticulated left hind limb specimens harvested from medium to large breed canine cadavers (n = 6) were used for this study...
January 9, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28068870/induced-remodeling-of-porcine-tendons-to-human-anterior-cruciate-ligaments-by-%C3%AE-gal-epitope-removal-and-partial-crosslinking
#12
Kevin Robert Stone, Ann Walgenbach, Uri Galili
This review describes a novel method developed for processing porcine tendon and other ligament implants which enables in situ remodeling into autologous ligaments in humans. The method differs from methods using extracellular matrices (ECM) which provide post-operative ortho-biologic support (i.e. augmentation grafts) for healing of injured ligaments, in that the porcine bone-patellar-tendon-bone itself serves as the graft replacing ruptured anterior cruciate ligament (ACL). The method allows for gradual remodeling of porcine tendon into autologous human ACL while maintaining the biomechanical integrity...
January 9, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28064350/a-descriptive-study-of-potential-effect-of-anterior-tibial-translation-femoral-tunnel-and-anterior-cruciate-ligament-graft-inclination-on-clinical-outcome-and-degenerative-changes
#13
Žiga Snoj, Oskar Zupanc, Klemen Stražar, Vladka Salapura
INTRODUCTION: There is no evidence that anatomically correct anterior cruciate ligament reconstruction (ACLR) offers lower rate of degenerative changes development or that it would lead to a better outcome. The significance and understanding of the abnormal anterior tibial translation (ATT) in ACLR patients is yet to be established. METHODS: Sixty subjects (40 patients at 5.9 years after ACLR, 20 healthy controls) underwent 3 T MRI. Quantitative cartilage T2 mapping and morphological whole organ magnetic resonance imaging score (WORMS) evaluation was performed...
January 7, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28061515/spacer-based-gap-balancing-in-total-knee-arthroplasty-clinical-success-with-a-reproducible-technique
#14
Frédéric Lavoie
Purpose Proper coronal and transverse ligament balancing is an important aspect of total knee arthroplasty (TKA) and has an impact on postoperative outcome. Many variations of the gap balancing technique were described to address this challenge, most of them using various tensioning devices, but none for which the use is widespread. The aim of this paper is to describe a gap technique variant for TKA using spacer blocks and report the clinical results for a cohort of patients on which it was used. Methods A total of 114 TKAs were performed in 101 patients using a standardized surgical technique that integrates ligament balancing with sizing and positioning of the femoral component...
January 6, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28059119/dysregulation-of-wti-kts-is-associated-with-the-kidney-specific-effects-of-the-lmx1b-r246q-mutation
#15
Gentzon Hall, Brandon Lane, Megan Chryst-Ladd, Guanghong Wu, Jen-Jar Lin, XueJun Qin, Elizabeth R Hauser, Rasheed Gbadegesin
Mutations in the LIM homeobox transcription factor 1-beta (LMX1B) are a cause of nail patellar syndrome, a condition characterized by skeletal changes, glaucoma and focal segmental glomerulosclerosis. Recently, a missense mutation (R246Q) in LMX1B was reported as a cause of glomerular pathologies without extra-renal manifestations, otherwise known as nail patella-like renal disease (NPLRD). We have identified two additional NPLRD families with the R246Q mutation, though the mechanisms by which LMX1BR246Q causes a renal-specific phenotype is unknown...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28056523/the-tibial-tubercle-trochlear-groove-distance-is-greater-in-patients-with-patellofemoral-pain
#16
Victor R Carlson, Barry P Boden, Aricia Shen, Jennifer N Jackson, Lawrence Yao, Frances T Sheehan
BACKGROUND: The distance between the tibial tubercle (TT) and trochlear groove (TT-TG distance) is known to be greater in patients with patellar instability. However, the potential role and prevalence of pathological TT-TG distances in a large cohort of skeletally mature patients with isolated patellofemoral pain (PFP) are not clear. PURPOSE: To determine if the mean TT-TG distance is greater in patients with PFP, who lack a history of patellar dislocations, knee trauma, or osteoarthritis, relative to healthy controls...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28056513/is-an-anterolateral-ligament-reconstruction-required-in-acl-reconstructed-knees-with-associated-injury-to-the-anterolateral-structures
#17
Frank R Noyes, Lauren E Huser, Darin Jurgensmeier, James Walsh, Martin S Levy
BACKGROUND: The effect of an anterolateral ligament (ALL) reconstruction on rotational knee stability and corresponding anterior cruciate ligament (ACL) graft forces using multiple knee loading conditions including the pivot-shift phenomenon has not been determined. PURPOSE: First, to determine the rotational stability and ACL graft forces provided by an anatomic bone-patellar tendon-bone ACL reconstruction in the ACL-deficient knee alone and with an associated ALL/iliotibial band (ITB) injury...
January 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28050572/comparison-of-a-novel-weightbearing-cone-beam-computed-tomography-scanner-versus-a-conventional-computed-tomography-scanner-for-measuring-patellar-instability
#18
John Marzo, Melissa Kluczynski, Anthony Notino, Leslie Bisson
BACKGROUND: Conventional computed tomography (CT) images are routinely used for diagnosing patellofemoral instability and are obtained with the patient in a supine position, nonweightbearing, with the knee in full extension, and with leg muscles relaxed. A new portable extremity cone beam CT (CBCT) scanner has been developed that may allow for more accurate diagnosis, as imaging can be performed with the patient standing, the knee flexed, and with leg muscles active. PURPOSE/HYPOTHESIS: The purpose of this study was to compare CT measurements of patellar alignment on a prototype scanner versus conventional scanner in patients with known patellar instability...
December 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28050540/keblish-s-lateral-surgical-approach-enhances-patellar-tilt-in-valgus-knee-arthroplasty
#19
José Roberto Tonelli Filho, Marcus Ceregatti Passarelli, João Alberto Salles Brito, Gustavo Constantino Campos, Alessandro Rozim Zorzi, João Batista de Miranda
OBJECTIVE: To compare the clinical and radiological outcomes of conventional medial and lateral approaches for total knee replacement in the valgus osteoarthritic knee. METHODS: In this randomized controlled trial, 21 patients with valgus knee osteoarthritis were randomized to total knee replacement through medial or lateral approach. The primary outcome was radiographic patellar tilt. Secondary outcomes were visual analog scale of pain, postoperative levels of hemoglobin, and clinical aspect of the operative wound...
November 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28045874/surgical-treatment-for-failure-of-repair-of-patellar-and-quadriceps-tendon-rupture-with-ipsilateral-hamstring-tendon-graft
#20
Nicola Maffulli, Rocco Papalia, Guglielmo Torre, Vincenzo Denaro
Tears of the patellar and quadriceps tendon are common in the active population, especially in athletes. At present, several techniques for surgical repair and reconstruction are available. When reruptures occur, a reconstruction is mandatory. In the present paper, we describe a surgical technique for patellar and quadriceps tendon reconstruction using ipsilateral hamstring autograft. After routine hamstring tendon harvesting, the tendon ends are prepared using a whip stitch. A transverse tunnel is drilled in the midportion of the patella, the hamstring graft is passed through the patella, and firmly secured to the patellar tunnel openings with sutures...
March 2017: Sports Medicine and Arthroscopy Review
keyword
keyword
67764
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"