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https://www.readbyqxmd.com/read/29303366/current-clinical-radiological-and-treatment-perspectives-of-patellofemoral-pain-syndrome
#1
Aishwarya Gulati, Christopher McElrath, Vibhor Wadhwa, Jay P Shah, Avneesh Chhabra
Anterior knee pain in active young adults is commonly related to patellofemoral (PF) pain syndrome (PFPS), which can be broadly classified into patellar malalignment and patellar maltracking. PFPS can be caused by a host of miserable malalignments, such as excessive femoral antetorsion, tibial varus / external rotation, knee valgus and pes planus. Radiographic, CT and MRI evaluations are commonly obtained to further elucidate the malalignment and maltracking abnormalities and exclude other related differentials, such as lateral meniscus tear, extensor tendon tear, anterior tenosynovial giant cell tumor and plica syndrome...
January 5, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29298258/long-term-outcomes-of-distal-femoral-extension-osteotomy-and-patellar-tendon-advancement-in-individuals-with-cerebral-palsy
#2
Elizabeth R Boyer, Jean L Stout, Jennifer C Laine, Sarah M Gutknecht, Lucas H Araujo de Oliveira, Meghan E Munger, Michael H Schwartz, Tom F Novacheck
BACKGROUND: We examined long-term outcomes across the domains of the International Classification of Functioning, Disability and Health for 2 groups of participants with cerebral palsy who demonstrated crouch gait at clinical gait analysis. One group underwent a distal femoral extension osteotomy with patellar tendon advancement (DFEO + PTA). The other group received other treatments (non-DFEO + PTA). METHODS: Fifty-one participants returned for a long-term gait analysis, physical examination, energy consumption test, knee radiographs, and questionnaires (median, 13 years post-DFEO + PTA or post-baseline [range, 8 to 21 years])...
January 3, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29273898/pseudo-patella-baja-a-minor-yet-frequent-complication-of-total-knee-arthroplasty
#3
Giulia Bugelli, Francesco Ascione, Niki Cazzella, Edoardo Franceschetti, Francesco Franceschi, Giacomo Dell'Osso, Eleonor Svantesson, Kristian Samuelsson, Stefano Giannotti
PURPOSE: One of the complications in total knee arthroplasty (TKA) is pseudo-patella baja (PPB). PPB is present when there is no shortening of the patellar tendon, but the joint line is elevated. The purpose of this study is to investigate the incidence of PPB after TKA and its clinical effects. METHODS: A case series of 158 patients undergoing TKA surgery between 1999 and 2012 at the 2nd Department of Orthopaedics and Traumatology, Pisa were retrospectively reviewed...
December 23, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29227374/collateral-ligament-knee-injuries-in-pediatric-and-adolescent-athletes
#4
Dennis E Kramer, Patricia E Miller, Iman K Berrahou, Yi-Meng Yen, Benton E Heyworth
BACKGROUND: The majority of research on medial (MCL) and lateral (LCL) collateral ligament injuries has focused on adults and combined collateral/cruciate injuries. The purpose of this study was to determine characteristics associated with isolated collateral ligament injuries in adolescents, and assess timing for return to sports. METHODS: Electronic medical records were queried to identify patients aged below 17 years who sustained a magnetic resonance imaging-confirmed isolated MCL or LCL injury over an 8-year period...
December 8, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29195849/cementless-posteriorly-stabilized-total-knee-arthroplasty-seven-year-minimum-follow-up-report
#5
Steven F Harwin, Jay M Levin, Anton Khlopas, Prem N Ramkumar, Nicolas S Piuzzi, Martin Roche, Michael A Mont
BACKGROUND: The purpose of this study is to evaluate (1) implant survivorship; (2) patient outcomes; (3) complications; and to (4) perform a radiographic analysis of cementless posteriorly stabilized total knee arthroplasty (TKA) patients at a minimum of 7-year follow-up. METHODS: Our original cohort was composed of 114 consecutive cementless posteriorly stabilized total knee arthroplasties (110 patients) performed by a single surgeon between 2008 and 2010. Since our original report, 4 (1 bilateral) patients died and 2 were lost to follow-up...
November 16, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29168434/changes-in-knee-shape-and-geometry-resulting-from-total-knee-arthroplasty
#6
Mohsen Akbari Shandiz, Paul Boulos, Stefan Karl Saevarsson, Heiko Ramm, Chun Kit Jack Fu, Stephen Miller, Stefan Zachow, Carolyn Anglin
Changes in knee shape and geometry resulting from total knee arthroplasty can affect patients in numerous important ways: pain, function, stability, range of motion, and kinematics. Quantitative data concerning these changes have not been previously available, to our knowledge, yet are essential to understand individual experiences of total knee arthroplasty and thereby improve outcomes for all patients. The limiting factor has been the challenge of accurately measuring these changes. Our study objective was to develop a conceptual framework and analysis method to investigate changes in knee shape and geometry, and prospectively apply it to a sample total knee arthroplasty population...
January 2018: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29137665/treatment-for-lateral-patellar-impingement-syndrome-with-arthroscopic-lateral-patelloplasty-a-bidirectional-cohort-study
#7
Tianhao Wu, Shiyu Tang, Fei Wang
BACKGROUND: Anterior knee pain is one of the most common musculoskeletal complaints of young patients. We notice that some patients had normal femoral trochlear, medial and lateral patellar retinaculum, and special patellar morphology, which resulted in a series of symptoms in the flexion of the knee due to the impingement of the lateral articular surface of the patella with the femur. We firstly termed this pathologic process as lateral patellar impingement syndrome (LPIS). This ambispective cohort study was to explore the curative effect of arthroscopic lateral patelloplasty for early LPIS...
November 14, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29118985/acute-development-of-cushing-syndrome-in-an-hiv-infected-child-on-atazanavir-ritonavir-based-antiretroviral-therapy
#8
Gueorgui Dubrocq, Andrea Estrada, Shannon Kelly, Natella Rakhmanina
An 11-year-old male with perinatally acquired human immune deficiency virus (HIV) infection on antiretroviral regimen, which included abacavir plus lamivudine (Epzicom), didanosine, ritonavir and atazanavir presented with bilateral axillary striae, increased appetite, fatigue, facial swelling and acute weight gain. Two months prior to presentation, the patient had received a diagnostic and therapeutic intra-articular triamcinolone injection in the knee for pain relief and subsequently became progressively swollen in the face, developed striae bilaterally at the axillae, experienced increased appetite, fatigue and an 8 pound weight gain...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29079908/patellofemoral-dysbalance-and-genua-valga-outcome-after-femoral-varisation-osteotomies
#9
Jörg Dickschas, Felix Ferner, Christoph Lutter, Kolja Gelse, Jörg Harrer, Wolf Strecker
INTRODUCTION: Patellofemoral dysbalance may be caused by trochlear dysplasia, an elevated TTTG distance, femoral or tibial torsional deformities, patella alta, or a genu valgum. The surgical procedure for the treatment of a genu valgum is varisation osteotomy, usually in the femoral aspect. Several authors believe that a genu valgum is one cause of patellofemoral dysbalance, but studies about the outcome of the treatment with a varisation osteotomy are rare. MATERIALS AND METHODS: Nineteen knees in 18 patients, aged on average 28 (16-52) years were investigated in a retrospective study...
October 27, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28979605/medial-patellofemoral-ligament-reconstruction-using-the-hamstring-tendon-for-patellofemoral-joint-instability-in-an-81-year-old-female
#10
Tsuneari Takahashi, Katsushi Takeshita
INTRODUCTION: Chronic patellofemoral instability occurs mainly in adolescent females and can also be induced by medial patellofemoral ligament (MPFL) injury. There are no case reports of MPFL reconstruction for chronic patellofemoral instability due to MPFL injury in aged populations. CASE PRESENTATION: 81-year-old female presented with left knee pain, giving way, and patellar instability while climbing stairs, which continued for 18 months. Patellar apprehension test was positive, and roentgenogram showed lateral patellar subluxation...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28974398/differences-in-patellofemoral-alignment-as-a-result-of-patellar-shape-in-cruciate-retaining-total-knee-arthroplasty-without-patellar-resurfacing-at-a-minimum-three-year-follow-up
#11
Atsuo Inoue, Yuji Arai, Shuji Nakagawa, Hiroaki Inoue, Yasushi Yoshihara, Shouichi Yamazoe, Toshikazu Kubo
BACKGROUND: Although the patellofemoral (PF) joint shape of the femoral implant in a particular prosthetic design is identical, the articular surface shape of the patella varies between individuals. The present study investigated the effects of patellar shape on the postoperative PF joint in a cruciate-retaining total knee arthroplasty (CR-TKA) without patellar resurfacing and with at least three years of follow-up. METHODS: This study investigated 76 knees of 62 patients who underwent CR-TKA without patellar resurfacing for varus osteoarthritis...
September 30, 2017: Knee
https://www.readbyqxmd.com/read/28869014/-iliac-haematoma-as-a-differential-diagnosis-to-lumbar-disc-herniation
#12
Esben Stistrup Lauritzen, Klaus Kjær Petersen
After a fall without fracture an 83-year-old man who was treated with warfarin was admitted with severe groin pain on the left hip. A few days later he had reduced strength in hip flexion and knee extension, absent patellar tendon reflex, and decreased sensibility of the anterior thigh and the medial lower leg. A magnetic resonance imaging revealed a large haematoma in the left iliac muscle. Iliac haematoma-induced femoral nerve compression neuropathy is a rare condition but should be considered as a differential diagnosis for L4 root compression in patients, who are receiving anticoagulant therapy...
August 14, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28715241/presentation-and-management-of-arthrofibrosis-of-the-knee-a-case-report
#13
Sara A Scholtes, Lynnette Khoo-Summers, Katherine J Damico
STUDY DESIGN: Case report. BACKGROUND: Arthrofibrosis is a debilitating condition that results in pain, decreased range of motion, and decreased function. Although surgical management of arthrofibrosis has been well described in the literature, rehabilitation of the arthrofibrotic knee is less well described. CASE DESCRIPTION: A 28-year-old female presented with swelling, pain, and decreased strength, range of motion, patellar mobility, and function following an exploratory arthroscopy of her left knee...
October 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28653182/coronal-femoral-tka-position-significantly-influences-in-vivo-patellar-loading-in-unresurfaced-patellae-after-primary-total-knee-arthroplasty
#14
Omer Slevin, Florian A Schmid, Filippo-Franco Schiapparelli, Helmut Rasch, Felix Amsler, Michael T Hirschmann
PURPOSE: As patellar tracking and loading is influenced by tibial tuberosity and trochlear groove (TT-TG) distance, patellar height, thickness and tilt as well as TKA component position, it was our hypothesis that these parameters significantly correlate with patellar BTU intensity and localization in SPECT/CT. The purpose of the study was to investigate whether TKA component position as well as the height, thickness and tilt of the unresurfaced patella influences the intensity and the distribution pattern of BTU in SPECT/CT...
November 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28589052/safe-and-effective-reduction-technique-for-intertrochanteric-fracture-with-ipsilateral-below-knee-amputated-limb
#15
Hironori Ochi, Tomonori Baba, Takahiro Hamanaka, Yu Ozaki, Taiji Watari, Yasuhiro Homma, Mikio Matsumoto, Kazuo Kaneko
The positioning of the patient on the fracture table is critical for the successful reduction and operative fixation of intertrochanteric hip fractures. However, this manipulation is challenging with patients who have undergone amputations of their legs. A 97-year-old man presented to the emergency department with symptom of right hip pain following a mechanical fall. He had a below-knee amputation on his right leg following a traffic accident as a 19-year-old and had a below-knee patellar tendon bearing prosthesis fitted to his lower limb for mobility...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28515980/investigating-the-effectiveness-of-kinesio%C3%A2-taping-space-correction-method-in-healthy-adults-on-patellofemoral-joint-and-subcutaneous-space
#16
Katie J Lyman, Kassiann Keister, Kara Gange, Christopher D Mellinger, Thomas A Hanson
BACKGROUND: Limited quantitative, physiological evidence exists regarding the effectiveness of Kinesio® Taping methods, particularly with respect to the potential ability to impact underlying physiological joint space and structures. To better understand the impact of these techniques, the underlying physiological processes must be investigated in addition to the examination of more subjective measures related to pain in unhealthy tissues. HYPOTHESIS/PURPOSE: The purpose of this study was to determine whether the Kinesio® Taping Space Correction Method created a significant difference in patellofemoral joint space, as quantified by diagnostic ultrasound...
April 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28499486/intra-osseous-local-anaesthetic-patellar-pain-catheter-suppresses-osteoarthritic-patello-femoral-pain
#17
Dominik C Meyer, José A Aguirre, Karl Wieser, Sandro F Fucentese, Stephan Wirth, Christian Gerber, Stefan Rahm
BACKGROUND: The source of pain in patellofemoral osteoarthritis is not fully understood. The purpose of this study was to identify the origin of pain using intraosseous pain catheters and to show early results with an osteotomy that is potentially denervating and hydrostatic pressure-relieving. METHODS: Five patients with patellofemoral osteoarthritis and pain with straight downward patellofemoral compression were included. All underwent arthroscopic placement of two 0...
May 9, 2017: Knee
https://www.readbyqxmd.com/read/28493040/stability-of-capsule-closure-and-postoperative-anterior-knee-pain-after-medial-parapatellar-approach-in-tka
#18
Armin Keshmiri, Fabian Dotzauer, Clemens Baier, Günther Maderbacher, Joachim Grifka, Ernst Sendtner
PURPOSE: Anterior knee pain after total knee arthroplasty (TKA) remains a widely discussed postoperative complication. In contrast to sports traumatology, the role of the dissected medial patellofemoral ligament (MPFL) using a medial parapatellar approach in TKA has not been discussed so far. In the present study, it was hypothesized that the attempted repair of the MPFL in TKA by simple closure of the joint capsule may not be successful in some cases, causing anterior knee pain. Furthermore, it was hypothesized, that the success of repair might be influenced by femoral component rotation...
May 10, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28437491/correct-positioning-of-the-medial-patellofemoral-ligament-troubleshooting-in-the-operating-room
#19
M Tyrrell Burrus, Brian C Werner, Jourdan M Cancienne, David R Diduch
Medial patellofemoral ligament (MPFL) reconstruction is often required after failed nonoperative management of lateral patellar instability. It is important to properly re-create the native ligament to avoid altering patellofemoral biomechanics. Such alterations can cause knee stiffness, anterior knee pain, and patellofemoral chondrosis. Incorrect femoral location is the most common mistake that affects MPFL graft biomechanics. Authors have described multiple radiographic and anatomical landmarks that assist in determining the appropriate location, and time should be taken to accurately localize this position...
March 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28344594/articular-inflammation-induced-by-an-enzymatically-inactive-lys49-phospholipase-a2-activation-of-endogenous-phospholipases-contributes-to-the-pronociceptive-effect
#20
Renata Gonçalves Dias, Sandra Coccuzzo Sampaio, Morena Brazil Sant'Anna, Fernando Queiroz Cunha, José María Gutiérrez, Bruno Lomonte, Yara Cury, Gisele Picolo
BACKGROUND: Arthritis is a set of inflammatory conditions that induce aching, stiffness, swelling, pain and may cause functional disability with severe consequences to the patient's lives. These are multi-mediated pathologies that cannot be effectively protected and/or treated. Therefore, the aim of this study was to establish a new model of acute arthritis, using a Lys49-PLA2 (Bothrops asper myotoxin II; MT-II) to induce articular inflammation. METHODS: The articular inflammation was induced by MT-II (10 μg/joint) injection into the left tibio-tarsal or femoral-tibial-patellar joints...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
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