2,064 results match your criteria: "Patellofemoral Arthritis"

Background: Patellofemoral joint (PFJ) diseases are chronic degenerative conditions that contribute to knee joint symptoms. Unicompartmental knee arthroplasty (UKA) is widely regarded as an effective treatment for knee osteoarthritis (KOA); however, its specific indications remain a subject of debate.

Hypothesis: Patients with PFJ disease are expected to experience outcomes post-UKA comparable to those of patients without PFJ disease.

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Predictors of Increased Complication Rate Following Tibial Tubercle Osteotomy (TTO).

Knee

December 2024

NYU Langone Health, Department of Orthopedics, Division of Sports Medicine, 333 E 38th St, New York, NY 10016, United States.

Purpose: The purpose of the current study was to define the incidence of minor and major complications following TTO at a tertiary-care institution, with determination of predictive factors related to the occurrence of a major complication.

Study Design: Retrospective case series.

Methods: Patients who underwent TTO from 2011 to 2023 were retrospectively identified.

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Introduction: We experienced a rare case in which a bilateral snapping knee was caused by rheumatoid arthritis accompanied by Sjögren's syndrome (SS), and the symptoms were resolved by arthroscopic surgery.

Case Report: A 43-year-old Asian male presented at another hospital with finger, shoulder, and knee pain and was diagnosed with rheumatoid arthritis accompanied by SS. Two months later, he developed the snapping phenomenon in both knees and presented at our hospital.

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Introduction: Arthrofibrosis of the knee is an adverse outcome after anterior cruciate ligament (ACL) reconstruction. Definitions and classifications vary widely based on extension and flexion losses, patellar mobility, and location. In general, it is understood as a restricted range of motion (ROM) due to scar tissue, and it is often defined as symptomatic limitation in knee ROM compared to the opposite knee.

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A biomechanical analysis of four medial patellofemoral ligament reconstruction techniques.

Clin Biomech (Bristol)

November 2024

Department of Orthopedic Surgery, SUNY Upstate Medical University, 750 E. Adams St., Syracuse, New York 13210, USA. Electronic address:

Background: Implant free medial patellofemoral ligament reconstruction is an increasingly popular technique to address patellar instability. There remains sparse literature on the biomechanical differences between the most common femoral attachment fixation points including Schottle's point, superficial medial collateral ligament, and adductor magnus tendon. This study compared these reconstruction techniques as well as a novel triangle reconstruction integrating both superficial medial collateral ligament and adductor magnus tendon.

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Article Synopsis
  • There is limited research on the optimal indications for lateral unicompartmental knee arthroplasty (UKA), in contrast to the more established guidelines for medial UKA, due to differences in anatomy, osteoarthritis types, movement patterns, and surgical techniques.
  • A systematic review examined 38 cohort studies to identify common indications and contraindications for lateral UKA, reporting that it is mainly performed for primary lateral osteoarthritis and identifying key contraindications.
  • While some agreement on indications was found, the study indicates there is no strong consensus on the best practices for lateral UKA, highlighting the need for clearer, evidence-based guidelines in future research.
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Advanced Non-Operative Interventions for Anterior Knee Pain.

Curr Rev Musculoskelet Med

December 2024

Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, USA.

Article Synopsis
  • This review focuses on advanced non-operative treatments for common causes of anterior knee pain in adults, including techniques like extracorporeal shockwave therapy (ESWT), platelet-rich plasma (PRP), and other injection-based therapies.
  • Recent findings indicate that ESWT and PRP show the strongest evidence for their effectiveness in treating conditions such as osteoarthritis and patellar tendinopathy, while other treatments like botulinum neurotoxin demonstrate strong support for patellofemoral pain syndrome.
  • There is a need for further research to better understand the effectiveness of various treatments for knee pain, as well as to standardize treatment protocols, allowing clinicians to make informed decisions based on patient activity levels and potential risks.
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Risk factors for early onset patellofemoral osteoarthritis following anterior cruciate ligament reconstruction with hamstring tendon autograft.

J Orthop Surg Res

November 2024

Department of Orthopedics, Department of Sports Medicine and Arthroscopic Surgery, The First Affiliated Hospital of Anhui Medical University, No. 218 of Jixi Road, Hefei, 230022, China.

Article Synopsis
  • This study investigated the risk factors for early-onset patellofemoral osteoarthritis (PFOA) in patients who had anterior cruciate ligament reconstruction (ACLR) using a hamstring tendon autograft within two years post-surgery.
  • Researchers analyzed MRI data and clinical parameters from 177 patients aged 18 to 40 and a control group, finding that nearly 38% of the ACLR patients developed PFOA.
  • Key risk factors for developing early-onset PFOA included age at surgery, timing of surgery relative to injury, and various anatomical measurements like patellar tilt angle and static anterior tibial translation.
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Walking biomechanics in women with patellofemoral osteoarthritis differ compared to men with and women without patellofemoral osteoarthritis.

Braz J Phys Ther

December 2024

Australian IOC Research Centre, La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia. Electronic address:

Background: Differences in walking biomechanics between women and men with patellofemoral joint (PF) osteoarthritis (OA) may contribute to the development or progression of persistent symptoms in people with PF OA.

Objective: Evaluate how walking biomechanics of women with PF OA differ from: (i) men with PFJ OA; and (ii) women without PF OA. Second, explore the relationship between knee-related symptoms/function and walking biomechanics in individuals with PF OA, and whether these are modified by sex.

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Knee joint pathology and efferent pathway dysfunction: Mapping muscle inhibition from motor cortex to muscle force.

Musculoskelet Sci Pract

November 2024

Cognition, Neuroplasticity, & Sarcopenia (CNS) Lab, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, USA. Electronic address:

Article Synopsis
  • Dysfunction in efferent pathways after knee injuries leads to long-term issues with muscle performance and quality of life, highlighting the need for deeper understanding and effective treatment strategies.
  • The review summarizes literature on motor-related changes in individuals with knee issues like ACL injury, anterior knee pain, and osteoarthritis, utilizing various research techniques.
  • Findings indicate specific adaptations in the motor cortex and muscle units that affect muscle function, with unique impairments across different knee conditions, emphasizing the importance of addressing these changes for better rehabilitation outcomes.
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Is patella facet arthritis a contraindication to unicompartmental knee arthroplasty: Current concepts.

J ISAKOS

December 2024

JIS Orthopedics Inc., New Albany, OH 7277 Smith's Mill Rd, Ste 200, New Albany, OH 43054, USA.

Article Synopsis
  • * There are ongoing debates regarding which patient characteristics, including age, BMI, and the status of the patellofemoral joint (PFJ), determine eligibility for medial UKA.
  • * The review will explore historical and recent factors affecting medial UKA outcomes, such as anterior knee pain, PFJ arthritis, and considerations for future developments like cementless implants and mobile versus fixed bearing types.
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Article Synopsis
  • The study investigates the risk factors and population characteristics related to patellofemoral osteoarthritis (PFOA), particularly looking at how demographic and radiological factors correlate with the disease.
  • Utilizing data from 1080 patients over three years, the researchers measured various knee joint parameters using X-ray imaging and identified significant associations with PFOA risk, such as age, gender, weight, and certain patella characteristics.
  • Findings indicate that specific anatomical features, like patella type and dimensions, along with demographic factors, could play crucial roles in the development of PFOA, highlighting the need for further research in this area.
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Circumferential patellar denervation does not reduce anterior knee pain in total knee arthroplasty without patellar resurfacing; a prospective comparison.

J Orthop Surg Res

October 2024

University of Health Sciences, Department of Orthopedics and Traumatology, Antalya Training and Research Hospital, Varlık mah., Kazım Karabekir cd, Muratpasa, Antalya, 07100, Turkey.

Article Synopsis
  • * Patients were divided into two groups: one receiving patellar denervation (PD) and the other without (NPD), and outcomes like knee pain and function were measured before and after the surgery.
  • * There were no significant differences in pain and functional scores between the two groups, but both showed improvement over time, with scores indicating better outcomes at 3 and 6 months post-surgery.
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Article Synopsis
  • Knee osteoarthritis (KOA) leads to pain and limited joint function, affecting patients' quality of life, and is often linked to issues with the patellofemoral joint and abnormal patellar movement.
  • A study was conducted with 60 KOA patients, dividing them into two groups: one receiving joint mobilization and the other undergoing tissue-bone homeostasis manipulation (TBHM), both participating in rehabilitation sessions for 12 weeks.
  • After 12 weeks, TBHM showed statistically significant improvements in biomechanics and knee function, including step velocity and overall knee pain and stiffness, compared to the control group.
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Article Synopsis
  • The study aimed to evaluate how patellar denervation (PD) affects pain, function, and kneeling ability in patients after undergoing unicompartmental knee arthroplasty (UKA) due to medial knee osteoarthritis.
  • Patients were divided into two groups (PD and non-PD) and assessed using various clinical scores and their ability to kneel was measured post-surgery.
  • Results showed that PD improved knee function and reduced pain, enhancing kneeling ability, although patients' self-perception of kneeling didn't always match their actual performance.
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Article Synopsis
  • The study aimed to assess how the shape of the patella (kneecap) affects knee function and joint alignment after a specific type of knee surgery called unicompartmental knee arthroplasty (UKA).
  • It involved analyzing data from 207 osteoarthritis patients, classified into three groups based on patellar morphology (Wiberg I, II, and III), and measured knee function scores and patellar alignment through various imaging parameters.
  • Results showed that patients with Wiberg III patellae had higher rates of knee pain and worse functional scores after surgery, suggesting that tailored surgical approaches may be needed for this group to improve outcomes.
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Article Synopsis
  • The study aimed to explore how the condition of the anterior cruciate ligament (ACL) affects the results of mobile-bearing medial unicompartmental knee arthroplasty (UKA) in patients with anteromedial osteoarthritis.
  • Researchers analyzed data from 128 patients who underwent the surgery, categorizing them based on their ACL condition as normal, synovial defect, or longitudinal split, and found no significant differences in key baseline demographics across these groups.
  • At follow-up (around 40 months), all groups showed no significant cartilage wear or complications, and there were improvements in knee range of motion and pain scores, indicating that ACL integrity did not negatively impact short- and mid-term outcomes of the surgery.
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Article Synopsis
  • * A total of 3137 articles were analyzed, revealing that the United States was the leading country in publications and collaborations, with the University of Melbourne being the top institution for research output.
  • * The analysis identified eight key research themes in KOA exercise interventions and highlighted "older adult" as the most frequent keyword, alongside contemporary topics like patellofemoral pain and total knee arthroplasty.
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Article Synopsis
  • The study aimed to investigate the relationship between subregional NaF-SUV values, T-T measurements, and vertical ground reaction forces in patients with isolated patellofemoral-joint-osteoarthritis (PFJ-OA).
  • Thirty-five PFJ-OA patients underwent advanced imaging scans to assess their knee conditions and calculate loading rates during walking trials.
  • Results revealed complex associations between bone and cartilage measurements, highlighting a notable link between increased bone uptake and gait characteristics, suggesting important clinical implications for PFJ-OA management.
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Article Synopsis
  • Osteoarthritis of the knee primarily affects the medial compartment, leading to surgical treatments like high tibial osteotomy (HTO) and unicompartmental knee arthroplasty (UKA) for those unresponsive to conservative methods.
  • This study compared the effects of HTO and UKA on knee function and patellofemoral changes in 79 patients under 60, evaluating various knee metrics pre- and post-surgery.
  • Results indicated no adverse patellofemoral changes from either procedure, with significant differences in specific measurements, suggesting both surgical options are viable for younger patients with medial compartment osteoarthritis.
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Functional outcome after bicompartmental knee replacement for medial and patellofemoral osteoarthritis.

Arch Orthop Trauma Surg

September 2024

Department of Orthopedic Surgery, GZA Hospitals Sint-Augustinus, Oosterveldlaan 24, 2610, Antwerpen, België.

Article Synopsis
  • - The study investigates the clinical outcomes of bicompartmental knee arthroplasty (BKA) for patients with medial and patellofemoral osteoarthritis, focusing on pain relief and knee functionality after a follow-up period of at least 2 years.
  • - A cohort of 21 patients had significant improvements in various patient-reported outcome measures (PROMs), with 80% achieving good to excellent scores, although the Western Ontario and McMaster University Osteoarthritis Index (WOMAC) results indicated worse outcomes compared to existing literature.
  • - Secondary outcomes evaluated included radiographic alignment, implant survivorship, adverse events, and length of hospital stay, contributing to a comprehensive understanding of the procedure's effectiveness and safety.
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Does high-intensity running to fatigue influence lower limb injury risk?

J Sci Med Sport

August 2024

School of Sport, Exercise and Health Sciences, Loughborough University, United Kingdom; Versus Arthritis Centre for Sport, Exercise and Osteoarthritis Research, Loughborough University, Loughborough, United Kingdom; National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre, United Kingdom.

Article Synopsis
  • The study aimed to measure changes in peak forces at the distal tibia, patellofemoral joint, and Achilles tendon during high-intensity runs until fatigue.
  • 16 experienced runners participated in the research, running on a treadmill at their maximum speed until failure, while their movements were analyzed in detail.
  • Results showed a decrease in tibial bending moments and Achilles tendon forces, but an increase in patellofemoral joint forces, suggesting potential risks for joint injuries without indicating similar risks for tibial or Achilles tendon injuries.
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Knee braces for knee osteoarthritis: A scoping review and narrative synthesis of interventions in randomised controlled trials.

Osteoarthritis Cartilage

November 2024

School of Medicine, Primary Care Centre Versus Arthritis, Keele University, Keele, Staffordshire, UK; Centre for Applied Health & Social Care Research (CARe), Sheffield Hallam University, Sheffield, UK. Electronic address:

Article Synopsis
  • The study aimed to evaluate and summarize knee bracing interventions from randomized controlled trials (RCTs) focused on knee osteoarthritis (OA).
  • A scoping review identified 31 RCTs with 47 different bracing types, highlighting variations in the type and use of braces, but poor reporting on brace adherence and contextual details.
  • The review concluded that the diversity of interventions, along with gaps in adherence focus and reporting, may be leading to inconsistent findings and recommendations regarding the effectiveness of knee bracing for OA.
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Article Synopsis
  • Advanced 3D imaging and CT-based navigation significantly improve total knee arthroplasty (TKA) by enhancing preoperative planning, allowing for more accurate component sizing and alignment assessment while optimizing surgical techniques.
  • These technologies help surgeons better evaluate important aspects such as osteophytes and arthritic changes, which leads to improved insights for tibial sizing and implant positioning during surgery.
  • Although there are concerns about cost and radiation exposure, the benefits like reduced blood loss and improved early outcomes are encouraging the use of imaging-based robotic surgery, warranting further research on ultra-low-dose CT scans for better clinical results.
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Article Synopsis
  • MRI scans are being used more frequently to assess knee osteoarthritis and plan for unicompartmental knee arthroplasty (UKA), especially since many patients have scans prior to seeing their surgeons.
  • The study analyzed 100 knees with specific criteria to evaluate cartilage damage, osteophytes, meniscal issues, and ACL status, with decisions for UKA based on surgical inspections rather than MRI alone.
  • Findings showed significant cartilage loss in the medial compartment, varying conditions of the ACL, and some osteophyte presence, stressing that while MRI confirms bone-on-bone disease, further understanding of additional findings is necessary for better patient outcomes.
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