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Patella femoral pain

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https://www.readbyqxmd.com/read/28979605/medial-patellofemoral-ligament-reconstruction-using-the-hamstring-tendon-for-patellofemoral-joint-instability-in-an-81-year-old-female
#1
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
#2
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/28910133/a-comparison-of-2-year-outcomes-in-patients-undergoing-tibiofemoral-or-patellofemoral-matrix-induced-autologous-chondrocyte-implantation
#3
Jay R Ebert, Adrian Schneider, Michael Fallon, David J Wood, Gregory C Janes
BACKGROUND: Matrix-induced autologous chondrocyte implantation (MACI) has demonstrated encouraging clinical results in the treatment of knee chondral defects. However, earlier studies suggested that chondrocyte implantation in the patellofemoral (PF) joint was less effective than in the tibiofemoral (TF) joint. PURPOSE: To compare the radiological and clinical outcomes of those undergoing MACI to either the femoral condyles or PF joint. STUDY DESIGN: Cohort study; Level of evidence, 3...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28681088/mediolateral-femoral-component-position-in-tka-significantly-alters-patella-shift-and-femoral-roll-back
#4
Arnd Steinbrück, Christian Schröder, Matthias Woiczinski, Florian Schmidutz, Peter E Müller, Volkmar Jansson, Andreas Fottner
PURPOSE: Increased retropatellar pressure and altered kinematics are associated with anterior knee pain and unsatisfied patients after total knee arthroplasty (TKA). Since malposition of the implant is believed to contribute to postoperative pain, we performed this in vitro study to evaluate the influence of mediolateral femoral component position on retropatellar pressure as well as tibio-femoral and patella kinematics. METHODS: For the test, a fixed-bearing TKA was implanted in eight fresh frozen cadaver specimens...
November 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28653182/coronal-femoral-tka-position-significantly-influences-in-vivo-patellar-loading-in-unresurfaced-patellae-after-primary-total-knee-arthroplasty
#5
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/28571921/variability-in-static-alignment-and-kinematics-for-kinematically-aligned-tka
#6
Willy Theodore, Joshua Twiggs, Elizabeth Kolos, Justin Roe, Brett Fritsch, David Dickison, David Liu, Lucy Salmon, Brad Miles, Stephen Howell
BACKGROUND: Total knee arthroplasty (TKA) significantly improves pain and restores a considerable degree of function. However, improvements are needed to increase patient satisfaction and restore kinematics to allow more physically demanding activities that active patients consider important. The aim of our study was to compare the alignment and motion of kinematically and mechanically aligned TKAs. METHODS: A patient specific musculoskeletal computer simulation was used to compare the tibio-femoral and patello-femoral kinematics between mechanically aligned and kinematically aligned TKA in 20 patients...
May 29, 2017: Knee
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
#7
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/28508973/phlegmasia-cerulean-dolens-complication-of-femoral-vein-catheterization
#8
M Hari Krishna Reddy, B Sangeetha, M Aruna, V Sarat Chandra, Anil C Venkata Kumar, R Ram, V Sivakumar
There are three less frequent manifestations of acute massive venous thrombosis and obstruction of the venous drainage of an extremity. They are phlegmasia alba dolens, phlegmasia cerulean dolens (PCD), and venous gangrene. The term PCD differentiates ischemia-associated massive venous thrombosis from phlegmasia alba dolens, which describes fulminant venous thrombosis without ischemia. We present a 55-year-old hypertensive, who presented with paedal oedema and breathlessness at rest. About a month prior to this admission, she suffered dislocation of left patella...
November 2016: CEN Case Reports
https://www.readbyqxmd.com/read/28499486/intra-osseous-local-anaesthetic-patellar-pain-catheter-suppresses-osteoarthritic-patello-femoral-pain
#9
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
#10
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/28357555/morphological-study-and-relations-of-the-fascia-vasto-adductoria
#11
Eman Elazab Beheiry Elazab
The precise description of the fascia vasto-adductoria (FVA) has become an issue of great surgical and clinical importance. Neurovascular entrapment within the adductor canal (AC) may simulate many clinical conditions for cases presented with medial knee or leg pain and ischemic manifestations of the leg. The aim of the present work is to describe the morphological features of the FVA and to elucidate its neurovascular relations. Forty thigh specimens, pertaining to 15 embalmed and five fresh adult human cadavers, were dissected in pursuit of this aim...
March 29, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28345414/fresh-osteochondral-allograft-transplantation-for-fractures-of-the-knee
#12
Guilherme C Gracitelli, Luis Eduardo Passarelli Tirico, Julie C McCauley, Pamela A Pulido, William D Bugbee
Objective The purpose of this study was to evaluate functional outcomes and allograft survivorship among patients with knee fracture who underwent fresh osteochondral allograft (OCA) transplantation as a salvage treatment option. Design Retrospective analysis of prospectively collected data. Setting Department of Orthopaedic Surgery at one hospital. Patients Fresh OCAs were implanted for osteochondral lesions after knee fracture in 24 males and 15 females with an average age of 34 years. Twenty-nine lesions (74%) were tibial plateau fractures, 6 (15%) were femoral condyle fractures, and 4 (10%) were patella fractures...
April 2017: Cartilage
https://www.readbyqxmd.com/read/28345412/effect-of-glucosamine-sulfate-on-osteoarthritis-in-the-cruciate-deficient-canine-model-of-osteoarthritis
#13
Wolfram Wenz, Christian Hornung, Christopher Cramer, Malte Schroeder, Michael Hoffmann
Objective Osteoarthritis (OA) is a major cause of musculoskeletal pain and disability worldwide. The investigation of disease-modifying treatment options for OA has become an important aspect of orthopedic care. To assess the effect of intra-articular and oral glucosamine sulfate (GS) versus placebo on osteoarthritis in a canine model. Materials In this randomized, placebo-controlled, double-blinded study, OA was induced by anterior cruciate ligament transection (ACLT) according to the Pond-Nuki model in 32 canines...
April 2017: Cartilage
https://www.readbyqxmd.com/read/28330756/femoral-articular-geometry-and-patellofemoral-stability
#14
Farhad Iranpour, Azhar M Merican, Seow Hui Teo, Justin P Cobb, Andrew A Amis
BACKGROUND: Patellofemoral instability is a major cause of anterior knee pain. The aim of this study was to examine how the medial and lateral stability of the patellofemoral joint in the normal knee changes with knee flexion and measure its relationship to differences in femoral trochlear geometry. METHODS: Twelve fresh-frozen cadaveric knees were used. Five components of the quadriceps and the iliotibial band were loaded physiologically with 175N and 30N, respectively...
June 2017: Knee
https://www.readbyqxmd.com/read/28318932/patellar-instability-treated-with-distal-femoral-osteotomy
#15
Ishaan Swarup, Osama Elattar, S Robert Rozbruch
BACKGROUND: Patellar instability can cause significant disability in both pediatric and adult patients, and it is associated with several factors including genu valgum. In this study, we describe the role of a lateral opening wedge distal femoral osteotomy (DFO) combined with lateral retinacular release in addressing genu valgum with associated patellar instability. The rationale for this approach is to medialize the patellar tendon insertion and decrease the Q angle with DFO. METHODS: A consecutive series of patients were studied, and our outcomes of interest included improvements in radiographic measures and patient outcomes...
March 17, 2017: Knee
https://www.readbyqxmd.com/read/28299718/have-the-causes-of-revision-for-total-and-unicompartmental-knee-arthroplasties-changed-during-the-past-two-decades
#16
Gro S Dyrhovden, Stein Håkon L Lygre, Mona Badawy, Øystein Gøthesen, Ove Furnes
BACKGROUND: Revisions after knee arthroplasty are expected to increase, and the epidemiology of failure mechanisms is changing as new implants, technology, and surgical techniques evolve. QUESTIONS/PURPOSES: (1) Was there improvement in survival for TKA and unicompartmental knee arthroplasty (UKA) when comparing two consecutive 11-year periods with similar followups in a national registry? (2) Were there changes in the causes of revision during the two times? (3) Could the changes in revision causes be attributed to patient or implant characteristics? METHODS: A total of 60,623 TKAs (2426 revisions) and 7648 UKAs (725 revisions) were selected from the Norwegian Arthroplasty Register and analyzed based on year of primary surgery: 1994 to 2004 (Period 1) and 2005 to 2015 (Period 2)...
July 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28280905/clinical-outcomes-after-revision-surgery-for-medial-patellofemoral-ligament-reconstruction
#17
Andreas Chatterton, Torsten Grønbech Nielsen, Ole Gade Sørensen, Martin Lind
PURPOSE: Medial patellofemoral ligament reconstruction (MPFL-R) is the standard surgical intervention for patella instability. However, limited knowledge exists concerning the causes for failure, and outcome after revision MPFL-R. The purpose of this study is to evaluate the causes of primary MPFL-R failure and clinical outcomes after revision MPFL-R. METHODS: Twenty-three patients (6 males and 17 females) with failed primary MPFL-R underwent isolated revision MPFL-R or combined revision MPFL-R with tibial tuberosity osteotomy (TTO)...
March 9, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28258330/good-clinical-and-mri-outcome-after-arthroscopic-autologous-chondrocyte-implantation-for-cartilage-repair-in-the-knee
#18
Rainer Siebold, Ferzan Suezer, Benjamin Schmitt, Siegfried Trattnig, Marco Essig
PURPOSE: To analyze the clinical outcome and cartilage regeneration after all-arthroscopic Autologous Chondrocyte Implantation (ACI) using chondrospheres® (ACT3D) for the treatment of full-size articular cartilage lesions at the knee. METHODS: Thirty consecutive patients treated by all-arthroscopic ACI for full-size articular cartilage lesions in an otherwise healthy knee were enrolled. The defects were located on the femoral condyles (n = 18), in the trochlea (n = 7) and at the patella (n = 5)...
March 3, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28252351/patellar-reconstruction-following-previous-patellectomy-a-review-of-the-literature-and-a-case-series-using-distal-femoral-autograft-during-total-knee-arthroplasty
#19
REVIEW
D A George, A Dosani, R Morgan-Jones
During total knee arthroplasty, the reconstruction of the patella following a previous patellectomy is challenging, and is undertaken to improve functional outcomes and patient satisfaction. In this case series, we have reconstructed the patella using a femoral condyle resected during total knee arthroplasty. The resected femoral condyle with best available bone stock is selected and secured to the extensor mechanism. We reviewed the preoperative indications and postoperative outcomes of two patients who underwent the above procedure at our Institute, and compared this to the literature...
March 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/28228343/ultrasound-guided-femoral-nerve-blockage-in-a-patellar-dislocation-an-effective-technique-for-emergency-physicians
#20
Sami Eksert, Sinan Akay, Murtaza Kaya, Ali Kantemir, Kenan Keklikci
BACKGROUND: Patellar dislocation is an orthopedic emergency and its reduction can be painful. The aim of this case is to show that the ultrasound-guided femoral nerve blockage can be effectively used in the pain management of patellar reduction in the emergency department (ED). CASE REPORT: A 21-year-old man was admitted to our ED after suffering a fall down a flight of stairs. The initial physical examination and plain radiography showed a patellar dislocation in the right knee...
February 19, 2017: Journal of Emergency Medicine
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