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Patellofemoral syndrome and diagnosis

Ignacio Orozco-Chavez, Guillermo Mendez-Rebolledo
[Purpose] Neuromuscular activity has been evaluated in patellofemoral pain syndrome but movement velocity has not been considered. The aim was to determine differences in onset latency of hip and knee muscles between individuals with and without patellofemoral pain syndrome during a single leg squat, and whether any differences are dependent on movement velocity. [Subjects and Methods] Twenty-four females with patellofemoral pain syndrome and 24 healthy females participated. Onset latency of gluteus maximus, anterior and posterior gluteus medius, rectus femoris, vastus medialis, vastus lateralis and biceps femoris during a single leg squat at high and low velocity were evaluated...
March 2018: Journal of Physical Therapy Science
Tyler M Coupal, Peter L Munk, Hugue A Ouellette, Hisham Al-Shikarchy, Paul I Mallinson, Hema Choudur
Patellofemoral syndrome (PFS) is a common etiology of anterior knee pain, particularly amongst young female athletes. Despite recent advancements in the resolution of magnetic resonance imaging (MRI), there still remains a paucity of literature that has investigated the MRI findings associated with PFS. This pictorial essay will describe our institutions experience with cases of PFS and review what we believe to be a constellation of findings associated with this diagnostic entity. This review will also describe common pitfalls encountered during the diagnosis of PFS...
March 22, 2018: British Journal of Radiology
Molly Vora, Emily Curry, Amanda Chipman, Elizabeth Matzkin, Xinning Li
Patellofemoral pain syndrome (PFPS) is one of the most common causes of knee pain and is present in females disproportionately more relative to males. PFPS causes tend to be multifactorial in nature and are described in this review. From a review of the current literature, it is clear that there needs to be further research on PFPS in order to better understand the complex etiology of this disorder in both males and females. It is known that females with patellofemoral pain syndrome demonstrate a decrease in abduction, external rotation and extension strength of the affected side compared with healthy patients...
December 14, 2017: Orthopedic Reviews
Li-Hua Cui
Patellofemoral pain syndrome (PFPS) is one of the most common diseases that cause pain in the knee joint. At present, there is no specific diagnostic measure. The diagnosis of patellofemoral pain syndrome may be considered when imaging is performed without cartilage, ligament and soft tissue injuries. The etiology includes abnormalities of the patellar motion caused by various anatomical abnormalities, such as abnormal patellar position, increased Q angle, and excessive valgus foot. Dysfunction of the lower extremity muscles such as the imbalance of the four biceps and the dysfunction of the gluteal muscles also play an important role in the development of patellofemoral pain syndrome...
July 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
Ezekiel Maloney, A Luana Stanescu, Anh-Vu Ngo, Marguerite T Parisi, Ramesh S Iyer
We discuss the pediatric patella, with an emphasis on diagnostic imaging. Topics include normal patellar development, anatomical variants and their physiologic significance, genetic syndromes that alter the appearance of the patella, physiology of patellar tracking and stability, patellofemoral instability, and injury patterns and classification. Recognition of appropriate development on imaging prevents diagnostic error and unnecessary evaluation. Knowledge of the pertinent features of syndromes associated with morphological patellar abnormalities can aid in generating a succinct and relevant differential diagnosis...
February 2018: Seminars in Musculoskeletal Radiology
Aishwarya Gulati, Christopher McElrath, Vibhor Wadhwa, Jay P Shah, Avneesh Chhabra
Anterior knee pain in active young adults is commonly related to patellofemoral pain syndrome, which can be broadly classified into patellar malalignment and patellar maltracking. Imaging is performed to further elucidate the exact malalignment and maltracking abnormalities and exclude other differentials. This article details the role of the stabilizers of the patellofemoral joint, findings on conventional and multimodality imaging aiding in patellofemoral pain syndrome diagnosis and characterization, and current perspectives of various treatment approaches...
January 22, 2018: British Journal of Radiology
Fatemeh Salarie Sker, Mehrdad Anbarian, Amir H Yazdani, Pouria Hesari, Arash Babaei-Ghazani
BACKGROUND: Decreases in patellofemoral pain symptoms with bracing treatment have been established; but, the mechanisms remain unclear. The purpose of this study was to determine the immediate and long-term effects of the patellar bracing on electromyography (EMG) activity of the Vastus Medialis (VM) and Lateralis (VL), Rectus Femoris, lateral Gastrocnemius, Biceps Femoris and Semitendinosus (ST) muscles during level walking. METHODS: 12 eligible women aged 20-30 years with diagnosis of patellofemoral pain participated in the before and after study...
October 2017: Gait & Posture
Marcio B Ferrari, George Sanchez, Jorge Chahla, Gilbert Moatshe, Robert F LaPrade
Isolated patellofemoral osteoarthritis is relatively prevalent, with the lateral facet of the patella being the most commonly affected portion. This pathology can be a result of a patellar maltracking syndrome, patella instability, or idiopathic degenerative changes. A thorough diagnostic work-up with a physical examination and imaging studies are mandatory for a proper diagnosis and to rule out other causes of patellofemoral knee pain. These patients are often treated nonoperatively with exercises for patella mobility, intra-articular injections, braces, patellar tracking, quadriceps balance and strength, and activity modification...
April 2017: Arthroscopy Techniques
M Tschopp, F Brunner
Running is one of the most popular sports worldwide, with running events attracting hundreds of thousands of runners of all age groups. Running is an effective way to improve health but is also associated with a high risk of injuries. Up to 50% of regular runners report having more than one injury each year. Some injuries are caused by an accident but most are caused by overuse. The most frequent diagnoses are patellofemoral pain syndrome, tibial stress syndrome (shin splint), Achilles tendinopathy, iliotibial band friction syndrome (runner's knee), plantar fasciitis and stress fractures of the metatarsals and tibia...
June 2017: Zeitschrift Für Rheumatologie
Matthew D Mucha, Wade Caldwell, Emily L Schlueter, Carly Walters, Amy Hassen
OBJECTIVES: Determine the association between hip abduction strength and lower extremity running related injury in distance runners. DESIGN: Systematic review. METHODS: Prospective longitudinal and cross sectional studies that quantified hip abduction strength and provided diagnosis of running related injury in distance runners were included and assessed for quality. Effect size was calculated for between group differences in hip abduction strength...
April 2017: Journal of Science and Medicine in Sport
Yubao Gong, Chen Yang, Yang Liu, Jianguo Liu, Xin Qi
Hereditary onycho-osteodysplasia, also known as nail-patella syndrome (NPS), is a rare genetic disorder that is primarily characterized by poorly developed nails and patella. Patients with NPS frequently suffer from patellar instability that requires surgical management. The present case report describes a 25-year-old man with NPS. The patient presented with left knee pain and was found to have recurrent left patellar dislocation. The knee pain was first reported 1-year after a minor knee trauma incident. Following complete evaluation, a diagnosis of NPS was reached...
June 2016: Experimental and Therapeutic Medicine
Justin M Lantz, Alicia J Emerson-Kavchak, John J Mischke, Carol A Courtney
BACKGROUND AND PURPOSE: Patellofemoral pain syndrome (PFPS) is a common source of anterior knee pain. Controversy exists over the exact clinical findings which define PFPS, thus, diagnosis and management can be challenging for clinicians. There is paucity in the literature concerning joint mobilization as treatment for PFPS, particularly at the tibiofemoral joint, as standard management is currently focused on therapeutic exercise, orthotics, bracing and taping. Therefore, the purpose of this case report is to describe the effects of tibiofemoral joint mobilization in the successful treatment of an individual with chronic PFPS as it relates to pain, function and central processing of pain...
June 2016: International Journal of Sports Physical Therapy
Jason Bonar, Shannon Clutton Carr, Diana De Carvalho, Jay S Wunder
Balancing the assessment of musculoskeletal dysfunctions with a high level of suspicion for non-mechanical origins can be a challenge for the clinician examining a sports injury. Without timely diagnosis, non-mechanical complaints could result in surgery or loss of limb. This case describes the discovery of a Giant Cell Tumor of Bone (GCTB) following the re-evaluation of an athlete who had undergone five years of conservative management for patellofemoral pain syndrome (PFPS). Knee injuries account for 32.6% of sports injuries with PFPS being the most common and most likely diagnosis for anterior knee pain...
March 2016: Journal of the Canadian Chiropractic Association
Caroline N Park, Peter B White, Morteza Meftah, Amar S Ranawat, Chitranjan S Ranawat
Although total knee arthroplasty is a successful and cost-effective procedure, patient dissatisfaction remains as high as 50%. Postoperative residual knee pain after total knee arthroplasty, with or without crepitation, is a major factor that contributes to patient dissatisfaction. The most common location for residual pain after total knee arthroplasty is anteriorly. Because residual pain has been associated with an un-resurfaced patella, this review includes only registry data and total knee arthroplasty with patella replacement...
March 2016: Orthopedics
Kay M Crossley, Michael J Callaghan, Robbart van Linschoten
No abstract text is available yet for this article.
November 4, 2015: BMJ: British Medical Journal
Sutida Sakunkaruna, Yosawin Sakunkaruna, Prasert Sakulsriprasert
OBJECTIVE: To conduct a cross-cultural adaptation and determine the test-retest reliability of the Thai version of the Kujala Patellofemoral questionnaire (KPQ). MATERIAL AND METHOD: The present study comprised two phases: cross-cultural adaptation and test-retest reliability. The KPQ was first translated and cross-culturally adaptedfrom English to Thai. The content validity test was conducted, and the final version of the Thai version of Kujala Patellofemoral Questionnaire was developed...
June 2015: Journal of the Medical Association of Thailand, Chotmaihet Thangphaet
Amy X Yin, Dai Sugimoto, Daniel J Martin, Andrea Stracciolini
OBJECTIVE: The purpose of this study was to analyze characteristics of dance injuries evaluated by sports medicine physicians. DESIGN: A cross-sectional epidemiological study of a 5% random probability sample of patients presenting for sports medicine evaluation between January 1, 2000, and December 31, 2009. SETTING: Sports medicine clinic of a tertiary-level pediatric medical center. PATIENTS: A total of 181 pediatric dancers (171 female and 10 male; 14...
April 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
B Otterbach
BACKGROUND: Patellofemoral pain syndrome is not really a diagnosis but rather describes the symptoms of this non-traumatic knee joint disease. Decreased movement control of the entire leg is discussed as a reason for the developing pain. Assessments of movement control include functional performance tests. A test to assess postural control and movement control of the foot, knee, hip and lumbar spine is the "Single Leg Pick-Up Test". The aim of the present study is to evaluate the interrater reliability of this test...
September 2015: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
Luca Dei Giudici, Davide Enea, Laura Pierdicca, Stefano Cecconi, Serena Ulisse, Serena Arima, Andrea Giovagnoni, Antonio Gigante
Patello-femoral malalignment (PFM) is a common cause of disability often related to patello-femoral syndrome (PFS). Several causes have been taken into account; a proper diagnosis requires instrumental imaging and a methodical evaluation of different parameters. The aim of the present study was to identify the most reliable parameters for measuring patello-femoral and inferior limb alignment by CT. Twenty randomly selected patients suffering from PFS for a total of 40 knees were studied by static CT scans in order to assess patellar tilt, patellar displacement, patellar and trochlear morphology and inferior limb alignment...
November 2015: La Radiologia Medica
Marcus A Rothermich, Neal R Glaviano, Jiacheng Li, Joe M Hart
Patients with anterior knee pain present a complex and common problem to health care providers. The diagnosis and treatment of these patients often involve a comprehensive evaluation that includes assessing the chronicity of the pain, the specific location of the complaint, and the previous treatment modalities attempted by the patient. This common diagnosis includes a wide variety of different pathologic abnormalities that can be present independently or concomitantly and cause a spectrum of disabilities for the patient...
April 2015: Clinics in Sports Medicine
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