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Chondromalacia

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https://www.readbyqxmd.com/read/29601214/a-novel-clinical-test-for-assessing-patellar-cartilage-changes-and-its-correlation-with-magnetic-resonance-imaging-and-arthroscopy
#1
Paul Khoo, Abhijeet Ghoshal, Damien Byrne, Ramesh Subramaniam, Raymond Moran
Controversy still exists regarding the best clinical assessment test for chondromalacia patellae (CMP). Our study aims to evaluate the specificity and sensitivity of a novel clinical test for CMP, the "Patella Slide Test" (PST) against the findings of magnetic resonance imaging (MRI) and arthroscopy. We included 221 consecutive patients planned for elective knee arthroscopic surgery. An MRI scan of the symptomatic knee was performed prior to surgery. On the day of surgery, each patient was examined using the PST followed by a knee arthroscopy to assess the quality of the chondral surfaces of the patellofemoral joint...
March 30, 2018: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29531488/investigation-of-the-relationship-between-anterior-knee-pain-and-chondromalacia-patellae-and-patellofemoral-malalignment
#2
Idil Kurut Aysin, Ayhan Askin, Berna Dirim Mete, Ece Guvendi, Murat Aysin, Hikmet Kocyigit
Objective: The study aimed to investigate whether there is any association of anterior knee pain and knee function with chondromalacia stage and patellofemoral alignment in patients with anterior knee pain for over a month and with chondromalacia patellae (CMP) detected by magnetic resonance imaging (MRI). Materials and Methods: We reviewed the medical records of 38 patients who underwent a knee MRI examination and were diagnosed with chondromalacia based on the MRI...
February 2018: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/29437246/early-movement-restriction-leads-to-enduring-disorders-in-muscle-and-locomotion
#3
Maxime Delcour, Vicky S Massicotte, Michaël Russier, Hélène Bras, Julie Peyronnet, Marie-Hélène Canu, Florence Cayetanot, Mary F Barbe, Jacques-Olivier Coq
Motor control and body representation in the central nervous system (CNS) as well as musculoskeletal architecture and physiology are shaped during development by sensorimotor experience and feedback, but the emergence of locomotor disorders during maturation and their persistence over time remain a matter of debate in the absence of brain damage. By using transient immobilization of the hind limbs, we investigated the enduring impact of postnatal sensorimotor restriction (SMR) on gait and posture on treadmill, age-related changes in locomotion, musculoskeletal histopathology and Hoffmann reflex in adult rats without brain damage...
February 13, 2018: Brain Pathology
https://www.readbyqxmd.com/read/29333118/the-relationship-between-chondromalacia-patella-medial-meniscal-tear-and-medial-periarticular-bursitis-in-patients-with-osteoarthritis
#4
Mustafa Resorlu, Davut Doner, Ozan Karatag, Canan Akgun Toprak
Background: This study investigated the presence of bursitis in the medial compartment of the knee (pes anserine, semimembranosus-tibial collateral ligament, and medial collateral ligament bursa) in osteoarthritis, chondromalacia patella and medial meniscal tears. Patients and methods: Radiological findings of 100 patients undergoing magnetic resonance imaging with a preliminary diagnosis of knee pain were retrospectively evaluated by two radiologists. The first radiologist assessed all patients in terms of osteoarthritis, chondromalacia patella and medial meniscal tear...
December 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/29249345/analysis-and-multiclass-classification-of-pathological-knee-joints-using-vibroarthrographic-signals
#5
Krzysztof Kręcisz, Dawid Bączkowicz
BACKGROUND AND OBJECTIVE: Vibroarthrography (VAG) is a method developed for sensitive and objective assessment of articular function. Although the VAG method is still in development, it shows high accuracy, sensitivity and specificity when comparing results obtained from controls and the non-specific, knee-related disorder group. However, the multiclass classification remains practically unknown. Therefore the aim of this study was to extend the VAG method classification to 5 classes, according to different disorders of the patellofemoral joint...
February 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29204454/magnetic-resonance-imaging-for-patellofemoral-chondromalacia-is-there-a-role-for-t2-mapping
#6
Carola F van Eck, R Scott Kingston, John V Crues, F Daniel Kharrazi
Background: Patellofemoral pain is common, and treatment is guided by the presence and grade of chondromalacia. Purpose: To evaluate and compare the sensitivity and specificity in detecting and grading chondral abnormalities of the patella between proton density fat suppression (PDFS) and T2 mapping magnetic resonance imaging (MRI). Study Design: Cohort study; Level of evidence, 2. Methods: A total of 25 patients who underwent MRI of the knee with both a PDFS sequence and T2 mapping and subsequently underwent arthroscopic knee surgery were included...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29202550/the-normal-value-of-tibial-tubercle-trochlear-groove-distance-in-patients-with-normal-knee-examinations-using-mri
#7
Mohammad Sobhanardekani, Mohammad Reza Sobhan, Reza Nafisi Moghadam, Sepehr Nabavinejad, Seid Kazem Razavi Ratki
Patellar instability is a multifactorial common knee pathology that has a high recurrence rate, and the symptoms continue and ultimately predispose the patient to chondromalacia and osteoarthritis. Tibial tuberosity-trochlear groove distance (TTTG) is very important in the assessment of patellofemoral joint instability. The purpose of this study was to report the normal value of TTTG in males and females in different age groups and to assess the reliability of MRI in measuring TTTG. All patients presenting with knee pain and normal examinations of the knee joint, with a normal MRI report, referring to Shahid Sadoughi hospital of Yazd, Iran, from April 2014 to September 2014, were included in the study...
September 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29192736/operative-findings-and-complications-associated-with-adjunctive-hip-arthroscopy-in-95-hips-undergoing-periacetabular-osteotomy
#8
Gregory Maxwell Gosey, Michael P Muldoon, Robert M Healey, Richard F Santore
PURPOSE: to report our initial experience with adjunctive hip arthroscopy and periacetabular osteotomy (PAO). METHODS: Retrospective review of patients who underwent PAO and ipsilateral hip arthroscopy between 2003 and 2013. Indications for arthroscopy were mechanical symptoms and/or positive magnetic resonance imaging to suggest intra-articular pathology including chondrolabral lesions, ligamentum teres tears and hypertrophy, and synovitis. Preoperative Tönnis arthritis grades, age, sex, operative findings and treatment, complications, and, if available, hip survival were recorded...
December 1, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28986675/does-the-grading-of-chondromalacia-patellae-influence-anterior-knee-pain-following-total-knee-arthroplasty-without-patellar-resurfacing
#9
Guo-Chun Zha, Shuo Feng, Xiang-Yang Chen, Kai-Jin Guo
OBJECTIVES: The influence of chondromalacia patellae (CMP) on post-operative anterior knee pain (AKP) following total knee arthroplasty (TKA) remains controversial, and few studies have focused on the relationship between them. The purpose of this study was to determine whether different CMP grades affect the incidence of AKP after TKA without patellar resurfacing. METHODS: We performed a retrospective analysis of prospectively collected data on 290 TKAs with the use of the low contact stress mobile-bearing prosthesis, without patellar resurfacing in 290 patients from February 2009 to January 2013...
March 2018: International Orthopaedics
https://www.readbyqxmd.com/read/28970998/a-modified-osteotomy-for-anteromedialization-of-the-tibial-tubercle
#10
Michael G Saper, Benjamin A Cox, David A Shneider
Tibial tubercle osteotomy is a common treatment option for a number of patellofemoral joint disorders including chondromalacia, "anterior knee pain" syndromes, patellofemoral arthritis, and patellar instability. Tibial tubercle osteotomy can modify tracking and/or patellofemoral contact forces to effect the unloading of chondral defects of the patella or trochlea, correct multiplanar suboptimal alignment, and be used in conjunction with soft-tissue stabilization procedures for instability. The purpose of this Technical Note is to describe, in detail, a modified osteotomy for anteromedialization of the tibial tubercle...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28852341/age-differences-in-the-prevalence-of-isolated-medial-and-lateral-meniscal-tears-in-surgically-treated-patients
#11
T J Ridley, Mark A McCarthy, Matthew J Bollier, Brian R Wolf, Annunziato Amendola
PURPOSE: To compare the prevalence of isolated lateral and medial meniscal tears in different aged populations. METHODS: A five-year retrospective review for meniscal procedures performed on a total of 782 patients. Each chart was reviewed to document the prevalence of medial or lateral meniscal injuries. Inclusion criteria were patients found to have documented evidence of meniscal tear, either lateral or medial, without any concomitant injuries and/or any other procedures performed...
2017: Iowa Orthopaedic Journal
https://www.readbyqxmd.com/read/28829171/advanced-imaging-techniques-of-the-wrist
#12
REVIEW
Andrew L Chang, Hon J Yu, Donald von Borstel, Taiki Nozaki, Saya Horiuchi, Yasuhiko Terada, Hiroshi Yoshioka
OBJECTIVE: This article covers the technical aspects and clinical applications of recent advancements in wrist MRI techniques, including T2 and T1rho mapping, compressed sensing, and isotropic 3D imaging using driven equilibrium sequences, variable-flip-angle refocusing pulse sequences, and parallel imaging. The clinical applications of these techniques include the quantitative analysis of cartilage and triangular fibrocartilaginous complex (TFCC) degeneration, faster scanning times, and improved resolution of complex wrist anatomy, allowing differentiation of degenerative from traumatic TFCC tears and improved morphologic evaluation of chondromalacia...
September 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28580255/arthroscopy-assisted-fabella-excision-surgical%C3%A2-technique
#13
Matthew T Provencher, George Sanchez, Márcio B Ferrari, Gilbert Moatshe, Jorge Chahla, Ramesses Akamefula, Robert F LaPrade
The fabella is an anatomic variant not seen in all individuals and can potentially be a source of chronic knee pain due to chondromalacia, osteoarthritis, fractures, or biomechanical pressure against the lateral femoral condyle. It is situated intra-articular, close to the lateral femoral condyle, the lateral gastrocnemius head tendon, and the fabellofibular ligament. Given its rarity, the diagnosis of a symptomatic fabella is often overlooked when evaluating patients with persistent posterolateral knee pain...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28569198/determination-of-reference-values-and-frequency-of-occurrence-of-patella-alta-in-german-shepherd-dogs-a-retrospective-study
#14
Anna Łojszczyk-Szczepaniak, Piotr Silmanowicz, Renata Komsta, Zbigniew Osiński
BACKGROUND: Patella alta and patella baja are important conditions underlying a predisposition to many joint diseases, including patellar luxation and patellar chondromalacia of the articular cartilage. The frequencies of patella alta and patella baja have not yet been determined. The objectives of this study were to determine the frequency of patella alta and to determine reference values to the position of the vertical patella according to two modified techniques of the Insall-Salvati method in a group of 65 German shepherd dogs (115 stifle joints)...
May 31, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28437494/patellofemoral-pain-an-enigma-explained-by-homeostasis-and-common-sense
#15
William R Post, Scott F Dye
We present a rational, scientific, low-risk approach to patellofemoral pain (anterior knee pain) based on an understanding of tissue homeostasis. Loss of tissue homeostasis from overload and/or injury produces pain. Bone overload and synovial inflammation are common sources of such pain. Chondromalacia and malalignment are findings that almost always do not need to be "corrected" to relieve pain. Patience and persistence in nonoperative care results in consistent success. Surgery should be rare and done only after extensive nonoperative management and in the setting of clearly defined pathology...
March 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28406876/cartilage-restoration-techniques-for-the-patellofemoral-joint
#16
Robert H Brophy, Robert D Wojahn, Joseph D Lamplot
Symptomatic osteochondral lesions of the patellofemoral joint are clinically challenging to manage because of the limited healing potential of articular cartilage; the complex morphology of the patellofemoral joint; the heterogeneity of the articular surface between patients; and high stresses across the joint, which can be altered by malalignment, tilt, or maltracking. Indications for surgery include traumatic lesions, osteochondritis dissecans, and high-grade chondromalacia in association with persistent pain despite a course of nonsurgical management...
May 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28254376/preoperative-patellofemoral-chondromalacia-is-not-a-contraindication-for-fixed-bearing-medial-unicompartmental-knee-arthroplasty
#17
Alexander J Adams, Gregory S Kazarian, Jess H Lonner
BACKGROUND: Patellofemoral chondromalacia (PFCM) has historically been considered a contraindication for unicompartmental knee arthroplasty (UKA), but there is limited data assessing PFCM's impact on the results of fixed-bearing UKA. Our objective was to assess the impact of medial patellar and/or medial trochlear PFCM on overall and patellofemoral-specific 2-year outcomes after fixed-bearing medial UKA. METHODS: Intraoperative notes defined the presence and location of PFCM during fixed bearing medial UKA...
June 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28149731/modified-jobe-approach-with-docking-technique-for-ulnar-collateral-ligament-reconstruction
#18
Daniel J Kaplan, Sergio A Glait, William E Ryan, Laith M Jazrawi
The ulnar collateral ligament (UCL) of the elbow acts as the primary restraint to valgus force experienced in the late cocking and early acceleration phases of overhead throwing. If the UCL or dynamic flexor-pronator musculature is incompetent, elbow extension and valgus torque, as seen in throwing, can result in posteromedial impingement with subsequent chondromalacia and osteophyte formation. Before the first UCL reconstruction, performed by Frank Jobe in 1974, this injury was considered career ending in overhead athletes...
December 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28143470/current-use-of-autologous-adipose-tissue-derived-stromal-vascular-fraction-cells-for-orthopedic-applications
#19
REVIEW
Jaewoo Pak, Jung Hun Lee, Kwang Seung Park, Moonhee Park, Lin-Woo Kang, Sang Hee Lee
Autologous adipose stromal vascular fractions (SVFs) containing adipose tissue-derived stem cells (ASCs) are currently being used in clinical settings for various orthopedic applications for human patients. Due to its potential capability of regenerating cartilage, bone, and tendons, autologous adipose SVFs are being tried in treating patients with osteoarthritis (OA), chondromalacia, meniscus tear, osteonecrosis of the femoral head, and tendon injuries. Here, we have reviewed available human clinical studies with regard to patient applications of autologous adipose SVF containing ASCs, specifically assessing effectiveness and safety in the field of orthopedic disorders...
January 31, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/27999505/osteochondral-allograft-transplantation-for-femoral-trochlear-dysplasia
#20
Dharmpal V Vansadia, James R Heltsley, Scott Montgomery, Misty Suri, Deryk G Jones
BACKGROUND: The risk factors for patellofemoral joint instability include laxity of medial patellar restraints, abnormal limb geometry, femoral and tibial malrotation, patella alta, and trochlear dysplasia. Femoral trochlear dysplasia is characterized by a hypoplastic or shallow trochlear groove. CASE REPORT: We report the case of a 31-year-old female with trochlear dysplasia and recurrent patella dislocations, laxity of the medial patellofemoral ligament (MPFL), and high-grade chondromalacia of the trochlea and the patella...
2016: Ochsner Journal
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