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Femural impingement

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https://www.readbyqxmd.com/read/29916934/modern-surgical-treatment-of-recurrent-posterior-dislocation-of-the-native-hip
#1
Bayard C Carlson, Nicholas M Desy, Joshua D Johnson, Robert T Trousdale, Michael Leunig, Reinhold Ganz, Rafael J Sierra
BACKGROUND: Redislocation of the native hip is rare. An anterior fulcrum between the proximal part of the femur and the pelvis must be present for a posterior dislocation to occur. The purpose of this study is to describe the cases of 9 patients with posterior redislocation or recurrent subluxation of the native hip that was treated with hip preservation surgery. METHODS: We retrospectively identified the cases of 9 patients, from 2 institutions, who had undergone hip preservation surgery for the management of posterior redislocation or recurrent subluxation of the native hip after a dislocation...
June 20, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29884561/impingement-of-the-patellar-component-against-the-tibial-post-depends-on-the-design-of-the-post-cam-mechanism-comparison-between-12-posterior-stabilized-total-knee-prostheses
#2
Yukihide Minoda, Ryo Sugama, Yoichi Ohta, Mitsuhiko Ikebuchi, Hiroaki Nakamura
BACKGROUND: Patella-post impingement (PPI), contact of the patellar component with the tibial post, occurs during deep knee flexion after posterior stabilized total knee arthroplasty (TKA). In a previous pilot study, only two product lines were investigated. The aim of this study was to compare PPI between 12 contemporary posterior stabilized knee prostheses. METHODS: Twelve posterior stabilized knee prostheses were implanted in full-length sawbone models of the femur and tibia using a navigation system...
June 5, 2018: Knee
https://www.readbyqxmd.com/read/29873507/preoperative-use-of-a-3d-printed-model-for-femoroacetabular-impingement-surgery-and-its-effect-on-planned-osteoplasty
#3
Tony T Wong, Thomas S Lynch, Charles A Popkin, Jonathan K Kazam
OBJECTIVE: The purpose of this study was to determine the effect that preoperative use of 3D printed models has on planned osteoplasty for femoroacetabular impingement (FAI) surgery. MATERIALS AND METHODS: This experimental study utilizing retrospective data included 10 consecutive patients from July 1, 2013, to January 1, 2015, with a clinical diagnosis of FAI and imaging consisting of radiographs, CT scans, and MR images. Three-dimensional models of each patient's affected hip were printed to scale from CT data...
June 6, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29701093/the-natural-alpha-angle-of-the-femoral-head-neck-junction
#4
H Gollwitzer, C Suren, C Strüwind, H Gottschling, M Schröder, L Gerdesmeyer, P M Prodinger, R Burgkart
Aims Asphericity of the femoral head-neck junction is common in cam-type femoroacetabular impingement (FAI) and usually quantified using the alpha angle on radiographs or MRI. The aim of this study was to determine the natural alpha angle in a large cohort of patients by continuous circumferential analysis with CT. Methods CT scans of 1312 femurs of 656 patients were analyzed in this cross-sectional study. There were 362 men and 294 women. Their mean age was 61.2 years (18 to 93). All scans had been performed for reasons other than hip disease...
May 1, 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29607765/significant-knowledge-gaps-between-clinical-practice-and-research-on-femoroacetabular-impingement-are-we-on-the-same-path
#5
Joanne L Kemp, May Arna Risberg
Femoroacetabular impingement (FAI) is the abnormal osseous contact between the femur (cam impingement) and/or acetabular rim (pincer impingement) during end-range hip motions. This special issue on FAI aims at closing some of the gaps between clinical practice and research findings, important for all health professions treating patients with hip pain. This special issue will explore several aspects of FAI syndrome. Specifically, it will provide clinicians with a greater understanding of the etiology and prevalence of hip morphology seen in FAI syndrome, and its relationship with hip range of motion, muscle strength, and hip osteoarthritis (OA)...
April 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29589046/-surgical-therapy-of-ischiofemoral-impingement-by-lateralizing-intertrochanteric-osteotomy
#6
REVIEW
C Suren, R Burgkart, I J Banke, G Hertel, J Schauwecker, R von Eisenhart-Rothe, H Gollwitzer
OBJECTIVE: Lateralizing, derotating intertrochanteric varus osteotomy to increase the ischiofemoral space to counter painful impingement of the lesser trochanter and the os ischium with resulting entrapment of quadratus femoris muscle. INDICATIONS: Symptomatic ischiofemoral impingement (IFI) caused by Coxa valga et antetorta, Coxa valga or Coxa antetorta, or a short femoral neck. CONTRAINDICATIONS: Anatomic configuration suggestive of IFI in asymptomatic patients...
April 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29554551/patient-specific-parameterised-cam-geometry-in-finite-element-models-of-femoroacetabular-impingement-of-the-hip
#7
Robert J Cooper, Sophie Williams, Marlène Mengoni, Alison C Jones
BACKGROUND: Impingement resulting in soft tissue damage has been observed in hips with abnormal morphologies. Geometric parameterisation can be used to automatically generate a range of bone geometries for use in computational models, including femurs with cam deformity on the femoral neck. METHODS: This study verified patient-specific parametric finite element models of 20 patients with cam deformity (10 female, 10 male) through comparison to their patient-specific segmentation-based equivalents...
May 2018: Clinical Biomechanics
https://www.readbyqxmd.com/read/29552506/post-cam-clunk-syndrome-after-posterior-stabilized-total-knee-arthroplasty-as-a-sign-of-early-femoral-component-loosening
#8
Akihiko Toda, Katsumasa Tei, Tomoyuki Matsumoto, Kazunari Ishida, Hiroshi Sasaki, Kazuki Kodato, Yuichiro Nishizawa, Shinsuke Kirizuki, Nao Shibanuma, Hiroomi Tateishi, Ryosuke Kuroda, Masahiro Kurosaka
Soft tissue impingements are well-known complications of total knee arthroplasty. The impingements usually occur between the medial or lateral femoral component and tibial insert, and between the patella and femoral components. We report a rare case of impingement of the soft tissue between the femoral intercondylar fossa and post of the polyethylene insert, which caused pain and walking disability. After the surgery for the arthroscopic removal of the soft tissue, the symptoms disappeared. However, prosthetic loosening of the femur occurred several months after the arthroscopic surgery, requiring revision surgery...
January 2018: Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology
https://www.readbyqxmd.com/read/29481345/morphologic-features-of-the-contralateral-femur-in-patients-with-unilateral-slipped-capital-femoral-epiphysis-resembles-mild-slip-deformity-a-matched-cohort-study
#9
Tobias Hesper, Sarah D Bixby, Daniel A Maranho, Patricia Miller, Young-Jo Kim, Eduardo N Novais
BACKGROUND: Hip osteoarthritis has been reported in the contralateral hip in patients who had been treated for unilateral slipped capital femoral epiphysis (SCFE) during adolescence. Although this might be related to the presence of a mild deformity, the morphologic features of the contralateral hip in unilateral SCFE remains poorly characterized. QUESTIONS/PURPOSES: Do measurements of (1) femoral head-neck concavity (α angle and femoral head-neck offset), (2) epiphyseal extension into the metaphysis (epiphyseal extension ratio and epiphyseal angle), and (3) posterior tilt of the epiphysis (epiphyseal tilt angle) differ between the contralateral asymptomatic hips of patients treated for unilateral SCFE and hips of an age- and sex-matched control population without a history of hip disease? METHODS: From January 2005 to May 2015, 442 patients underwent surgical treatment for SCFE at our institution...
April 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29409477/clinical-and-radiological-outcomes-of-arthroscopically-assisted-cannulated-screw-fixation-for-tibial-eminence-fracture-in-children-and-adolescents
#10
Chang Ho Shin, Doo Jae Lee, In Ho Choi, Tae-Joon Cho, Won Joon Yoo
BACKGROUND: The purpose of this study was to determine the efficacy and complications of arthroscopically assisted reduction and fixation with cannulated screws for tibial eminence fracture in skeletally immature patients. METHODS: This was a retrospective case series study. Forty-eight patients who were skeletally immature at the time of tibial eminence fracture were treated in a tertiary children's hospital between May 2004 and August 2015. Twenty-one patients were excluded due to non-operative treatment (n = 10), other surgical treatments (n = 9), multiple fracture (n = 1), and follow-up < 1 year (n = 1)...
February 6, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29406812/femoroacetabular-impingement-a-common-cause-of-hip-pain
#11
Travis J Menge, Nathan W Truex
Femoroacetabular impingement (FAI) is a common cause of hip pain that can affect a wide range of patients. It is due to altered bony morphology of the proximal femur and acetabulum, resulting in decreased function and progression to early osteoarthritis. Until the early 2000s, little was known or understood about the significance of FAI as a clinical entity. The field of hip preservation has grown exponentially since that time, and has led to many advances in caring for those with symptomatic impingement. This review details the early diagnosis and proper management of femoroacetabular impingement for the sports medicine practitioner...
February 13, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29399468/comprehensive-clinical-evaluation-of-femoroacetabular-impingement-part-2-plain-radiography
#12
Sandeep Mannava, Andrew G Geeslin, Salvatore J Frangiamore, Mark E Cinque, Matthew G Geeslin, Jorge Chahla, Marc J Philippon
The use of hip arthroscopy to treat various forms of hip pathology continues to grow. As part of a standard evaluation for eligibility for hip arthroscopy, we routinely obtain standard radiographs to assess the hip joint. These include orthogonal projections of the acetabulum and proximal femur, which can be obtained with a standing false profile, supine anteroposterior pelvis, and a lateral view of the proximal femur (either Dunn 45° or 90°, frog-leg lateral, or cross-table lateral). A comprehensive analysis of the radiographs is of utmost importance in order to indicate a patient for hip arthroscopy, for preoperative planning, and to determine prognosis...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29298262/body-mass-index-affects-proximal-femoral-but-not-acetabular-morphology-in-adolescents-without-hip-pathology
#13
Eduardo N Novais, Sandra J Shefelbine, Karl-Philipp Kienle, Patricia E Miller, Garrett Bowen, Young-Jo Kim, Sarah D Bixby
BACKGROUND: Increased mechanical load secondary to a large body mass index (BMI) may influence bone remodeling. The purpose of this study was to investigate whether BMI is associated with the morphology of the proximal part of the femur and the acetabulum in a cohort of adolescents without a history of hip disorders. METHODS: We evaluated pelvic computed tomographic (CT) images in 128 adolescents with abdominal pain without a history of hip pathology. There were 44 male patients (34%) and the mean patient age (and standard deviation) was 15 ± 1...
January 3, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29289395/modified-false-profile-radiograph-of-the-hip-provides-better-visualization-of-the-anterosuperior-femoral-head-neck-junction
#14
Penny R Atkins, Evangeline F Kobayashi, Andrew E Anderson, Stephen K Aoki
PURPOSE: The purpose of this study was to quantify the amount of internal femur rotation required to visualize the 12 to 3 o'clock positions of the femoral head-neck junction as seen on the false-profile radiograph. METHODS: Computed tomography (CT) images of the femur were retrospectively reviewed from control subjects and cam femoroacetabular impingement (FAI) patients. Using an automatically determined clockface, the positions between 12 and 3 o'clock were determined...
April 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29275431/influence-of-femoral-bowing-on-range-of-motion-after-total-hip-arthroplasty
#15
Keisuke Akiyama, Takaaki Shibuya
PURPOSE: The influence of physiologic femoral bowing on range of motion (ROM) after total hip arthroplasty (THA) remains unknown. The purpose of this study was to investigate the morphology of the femur in patients who underwent THA, and to analyze the influence of femoral bowing on ROM due to implant impingement after THA. METHODS: The ROM was calculated from 100 hips in 90 patients who underwent THA using computed tomography data with a 3D dynamic analysis software...
December 23, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29250337/how-to-address-ischiofemoral-impingement-treatment-algorithm-and-review-of-the-literature
#16
REVIEW
Hans Gollwitzer, Ingo J Banke, Johannes Schauwecker, Ludger Gerdesmeyer, Christian Suren
Ischiofemoral impingement (IFI) is a rare cause of hip pain defined by a narrowing of the space between the lateral aspect of the os ischium and the lesser trochanter of the femur. Several underlying anatomic, functional and iatrogenic pathologies have been identified for symptomatic IFI in native hip joints and after total hip arthroplasty. Clinical symptoms vary but most commonly consist of pain of the lower buttock and groin including the inner thigh, and a snapping or clunking phenomenon is often reported...
December 2017: Journal of Hip Preservation Surgery
https://www.readbyqxmd.com/read/29245096/pre-and-post-operative-evaluation-of-pincer-type-femoroacetabular-impingement-during-squat-using-image-matching-techniques-a-case-report
#17
Kensei Yoshimoto, Satoshi Hamai, Hidehiko Higaki, Hirotaka Gondo, Satoru Ikebe, Yasuharu Nakashima
INTRODUCTION: Although combined evaluation of hip joint kinematics and bone morphology is necessary for accurate assessment of femoroacetabular impingement (FAI), there are no report which evaluated hip kinematics of pincer-type FAI. PRESENTATION OF CASE: The pre- and postoperative hip kinematics of a 46-year-old man, with a pincer-type FAI during squat were evaluated using image-matching techniques and the rim-neck distance was measured. Preoperative simulation of squatting was also performed using patient's bone models and healthy subject's kinematics data to detect the overlapping lesion between the acetabulum and the femur...
2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29216704/-prevalence-of-x-ray-signs-of-femoroacetabular-impingement-in-mexican-population
#18
R Gutiérrez-Ramos, S A Ávalos-Calderón, L A Bahena-Peniche
BACKGROUND: Femoroacetabular impingement (FAI) is a suggested diagnosis for pain in the hip in the absence of other apparent causes. It is thought to be a cause of progressive arthrosis of the hip. Our objective was to determine the prevalence of radiographic data of FAI in the adult population without hip pathology over a period of six months. MATERIAL AND METHODS: Analytical, observational, multicentric, ambispective and transverse study based on digital X-rays analysis...
May 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/29172934/early-osteoarthritis-after-slipped-capital-femoral-epiphysis
#19
Lukas Helgesson, Peter Kälebo Johansson, Ylva Aurell, Carl-Johan Tiderius, Johan Kärrholm, Jacques Riad
Background and purpose - Slipped capital femoral epiphysis (SCFE) results in a more or less pronounced deformity of the proximal femur, sometimes causing impingement and early osteoarthritis. We studied early osteoarthritis after SCFE and the association with deformity and self-reported hip function, pain, and quality of life. Patients and methods - 9 women and 16 men, mean age 32 (21-50) years, 19 with unilateral and 6 with bilateral SCFE, participated. All patients had primarily been operated by pin or screw with no attempt at reposition of the slip...
April 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29157842/femoral-intertrochanteric-nail-fitn-a-new-short-version-design-with-an-anterior-curvature-and-a-geometric-match-study-using-post-operative-radiographs
#20
Shi-Min Chang, Sun-Jun Hu, Zhuo Ma, Shou-Chao Du, Ying-Qi Zhang
OBJECTIVE: Femoral intertrochanteric fractures are usually fixed with short, straight cephalomedullary nails. However, mismatches between the nail and the femur frequently occur, such as tip impingement and tail protrusion. The authors designed a new type of short femoral intertrochanteric nail (fitn) with an anterior curvature (length=19.5cm, r=120cm) and herein report the geometric match study for the first of 50 cases. METHODS: A prospective case series of 50 geriatric patients suffering from unstable intertrochanteric fractures (AO/OTA 31 A2/3) were treated...
February 2018: Injury
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