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Cam deformity

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https://www.readbyqxmd.com/read/28176673/surgical-hip-dislocation-in-treatment-of-slipped-capital-femoral-epiphysis
#1
Mohammed Elmarghany, Tarek M Abd El-Ghaffar, Mahmoud Seddik, Ahmed Akar, Yousef Gad, Eissa Ragheb, Alessandro Aprato, Alessandro Massè
BACKGROUND: Most surgeons advocate in situ fixation of the slipped epiphysis with acceptance of any persistent deformity in the proximal femur [Aronsson DD, Loder RT, Breur GJ, Weinstein SL (2006) Slipped capital femoral epiphysis: current concepts. J Am Acad Orthop Surg 14, 666-679]. This residual deformity can lead to osteoarthritis due to femoroacetabular cam impingement (FAI) [Leunig M, Slongo T, Ganz R (2008) Subcapital realignment in slipped capital femoral epiphysis: surgical hip dislocation and trimming of the stable trochanter to protect the perfusion of the epiphysis...
2017: SICOT-J
https://www.readbyqxmd.com/read/28165605/rotational-alignment-of-the-knee-is-different-in-osteological-specimens-with-and-without-a-large-cam-deformity-of-the-proximal-femur
#2
Jeremy J Gebhart, Jonathan J Streit, Avi Goodman, Jordan Etscheidt, Douglas S Weinberg, Asheesh Bedi, Shane J Nho, Michael J Salata
PURPOSE: We studied a large osteological collection for differences in knee rotation based upon the presence or absence of a large cam deformity of the proximal femur. METHODS: We obtained 357 matched tibiae and femora from the Hamann-Todd Osteological Collection and measured: femoral head-neck alpha angle, anteroposterior axis (or Whiteside's line) at the distal femur relative to the posterior condylar axis, and position of the tibial tubercle with respect to the posterior condylar axis of the proximal tibia...
February 2, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28149715/remplissage-of-the-femoral-head-neck-junction-in-revision-hip-arthroscopy-a-technique-to-correct-excessive-cam-resection
#3
Jonathan M Frank, Jorge Chahla, Justin J Mitchell, Eduardo Soares, Marc J Philippon
Femoroacetabular impingement (FAI) is an increasingly recognized cause of hip pain. This pathology often involves abnormal femoral neck shape (cam-type FAI), acetabular over coverage (pincer-type FAI), or mixed pathology. Surgical treatment of this entity includes labral repair and femoral head-neck osteochondroplasty. A mindful arthroscopic technique is of paramount importance, because maintaining the integrity of the labrum and a corresponding neck volume has been reported to be vital in maintaining the hip suction seal...
December 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28118503/cad-cam-assisted-auricular-prosthesis-fabrication-for-a-quick-precise-and-more-retentive-outcome-a-clinical-report
#4
Sushma Yadav, Aparna Ichangod Narayan, Archit Choudhry, Dhanasekar Balakrishnan
Auricular defects comprise a large proportion of maxillofacial deformities. Most patients with acquired deformities have psychosocial ineptness and seek cosmetic rehabilitation. Although minor defects can be corrected surgically, extensive deformities are difficult to reconstruct with plastic surgery. Contrary to that, prosthetic restoration can provide excellent esthetic results. The conventional methods of maxillofacial prosthesis fabrication are time consuming and the outcome depends on the technician's skill...
January 24, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28112875/three-dimensional-assessment-of-impingement-risk-in-geometrically-parameterised-hips-compared-with-clinical-measures
#5
Robert J Cooper, Marlène Mengoni, Dawn Groves, Sophie Williams, Marcus J K Bankes, Philip Robinson, Alison C Jones
Abnormal bony morphology is a factor implicated in hip joint soft tissue damage and an increased lifetime risk of osteoarthritis. Standard two-dimensional radiographic measurements for diagnosis of hip deformities, such as cam deformities on the femoral neck, do not capture the full joint geometry and are not indicative of symptomatic damage. In this study, a three-dimensional geometric parameterisation system was developed to capture key variations in the femur and acetabulum of subjects with clinically diagnosed cam deformity...
January 23, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28111694/progressive-femoroacetabular-impingement-after-complete-excision-of-osteoid-osteoma-in-adolescents-a-report-of-two-cases
#6
Woo Young Jang, Soon Hyuck Lee, Il Youp Cho
This article highlights that the long-term and serial follow-up of adolescents with osteoid osteoma should be considered, even after complete excision of the nidus owing to the possibility of the delayed onset or progression of femur head and neck deformities or osteoarthritis. It is important to recognize the sequelae of osteoid osteomas, such as bone edema and new bone formation, which can alter the normal anatomy of the proximal femur. We report two cases of osteoid osteoma in the proximal femur, which showed progressive hypertrophy of the femoral neck after excision of the nidus and subsequent cam-type femoroacetabular impingement (FAI), requiring additional osteochondroplasty procedures...
January 22, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28066736/joint-preservation-after-hip-arthroscopy-in-patients-with-fai-prospective-analysis-with-a-minimum-follow-up-of-seven-years
#7
Fernando Comba, Carlos Yacuzzi, Pablo J Ali, Gerardo Zanotti, Martin Buttaro, Francisco Piccaluga
BACKGROUND: The purpose of this study is to evaluate the clinical outcomes, radiological degenerative progression and the joint preservation rate in a series of patients with Femoroacetabular Impingement (FAI) treated with hip arthroscopy at a minimum follow-up of 7 years. The predictive factors for total hip arthroplasty (THA) requirement were analyzed. MATERIALS AND METHODS: Between February 2008 and February 2009, 42 consecutive patients treated with hip arthroscopy due to FAI syndrome were included...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27939070/femoroacetabular-impingement-and-pelvic-incidence-radiographic-comparison-to-an-asymptomatic-control
#8
Michael D Hellman, Bryan D Haughom, Nicholas M Brown, Yale A Fillingham, Marc J Philippon, Shane J Nho
PURPOSE: To investigate whether pelvic incidence (PI) in patients with symptomatic femoroacetabular impingement was different from that in a normal population. METHODS: Retrospective analysis of 30 consecutive female and 30 consecutive male patients with computed tomography scans who underwent hip arthroscopy for FAI. PI was measured using scout lateral radiographs. The center-edge angle (CEA), acetabular version, and α angle were also measured. Each patient was subcategorized as having a cam-type deformity (α angle >55°), a deep socket deformity (CEA >39°), and/or a retroverted acetabulum (acetabular anteversion <15°)...
December 8, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27903592/alpha-angle-measurements-in-healthy-adult-volunteers-vary-depending-on-the-mri-plane-acquisition-used
#9
Mohammad Golfam, Luigia A Di Primio, Paul E Beaulé, Kalesha Hack, Mark E Schweitzer
BACKGROUND: It has been shown that cam deformities are located at a more anterosuperior location than was previously described. PURPOSE: To establish, in a large group of asymptomatic participants, the normative range of the alpha angle in the anterosuperior location in both the oblique axial and radial views of magnetic resonance imaging (MRI). STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: In 197 asymptomatic participants (394 asymptomatic hips) with a mean age of 29...
November 9, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27868335/the-elongator-complex-associated-protein-drl1-plays-a-positive-role-in-immune-responses-against-necrotrophic-fungal-pathogens-in-arabidopsis
#10
Chenggang Wang, Xudong Zhang, Jian-Liang Li, Yanping Zhang, Zhonglin Mou
DEFORMED ROOT AND LEAVES1 (DRL1) is an Arabidopsis homologue of the yeast TOXIN TARGET4 (TOT4)/KILLER TOXIN-INSENSITIVE12 (KTI12) protein that is physically associated with the RNA polymerase II-interacting protein complex named Elongator. Mutations in DRL1 and Elongator lead to similar morphological and molecular phenotypes, suggesting that DRL1 and Elongator may functionally overlap in Arabidopsis. We have shown previously that Elongator plays an important role in both salicylic acid (SA)- and jasmonic acid (JA)/ethylene (ET)-mediated defence responses...
November 21, 2016: Molecular Plant Pathology
https://www.readbyqxmd.com/read/27815008/the-distribution-of-impingement-region-in-cam-type-femoroacetabular-impingement-and-borderline-dysplasia-of-the-hip-with-or-without-cam-deformity-a-computer-simulation-study
#11
Naomi Kobayashi, Yutaka Inaba, So Kubota, So Nakamura, Taro Tezuka, Yohei Yukizawa, Hyonmin Choe, Tomoyuki Saito
PURPOSE: To identify the distribution of the impingement region in cam-type femoroacetabular impingement (FAI) or patients with borderline developmental dysplasia of the hip (DDH) using computer simulation analysis. METHODS: A total of 51 painful hip joints from 42 consecutive cases diagnosed as cam-type FAI (center edge [CE] angle ≥ 25°, alpha angle ≥ 55°) or borderline DDH (CE angle ≥ 20° and < 25°) with or without a cam deformity (alpha angle ≥ 55° or < 55°) were enrolled...
February 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27785672/corr-insights-%C3%A2-increased-hip-stresses-resulting-from-a-cam-deformity-and-decreased-femoral-neck-shaft-angle-during-level-walking
#12
Andrew E Anderson
No abstract text is available yet for this article.
October 26, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27769722/the-use-of-patient-specific-implants-in-orthognathic-surgery-a-series-of-32-maxillary-osteotomy-patients
#13
Juho Suojanen, Junnu Leikola, Patricia Stoor
The use of virtual surgery, patient-specific saw and drill guides, and custom-made osteosynthesis plates is rapidly spreading from deformity surgery to orthognathic surgery. Most of the commercially available systems are using computer-aided design/computer-aided manufacture (CAD/CAM) wafers to produce patient-specific saw guides. However, most plate systems provided are still the conventional "in stock" mini plates that can be individually designed by pre-bending according to the stereolithographic model of the patient...
December 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27752989/femoral-morphology-in-the-dysplastic-hip-three-dimensional-characterizations-with-ct
#14
Joel Wells, Jeffrey J Nepple, Karla Crook, James R Ross, Asheesh Bedi, Perry Schoenecker, John C Clohisy
BACKGROUND: Hip dysplasia represents a spectrum of complex deformities on both sides of the joint. Although many studies have described the acetabular side of the deformity, to our knowledge, little is known about the three-dimensional (3-D) head and neck offset differences of the femora of dysplastic hips. A thorough knowledge of proximal femoral anatomy is important to prevent potential impingement and improve results after acetabular reorientation. QUESTIONS/PURPOSES: (1) Are there common proximal femoral characteristics in patients with symptomatic hip dysplasia undergoing periacetabular osteotomy (PAO)? (2) Where is the location of maximal femoral head and neck offset deformity in hip dysplasia? (3) Do certain subgroups of dysplastic hips more commonly have cam-type femoral morphology? (4) Is there a relationship between hip ROM as well as impingement testing and 3-D head and neck offset deformity? METHODS: Using our hip preservation database, 153 hips (148 patients) underwent PAO from October 2013 to July 2015...
October 17, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27720511/prevalence-of-pincer-cam-and-combined-deformities-in-japanese-hip-joints-evaluated-with-the-japanese-hip-society-diagnostic-guideline-for-femoroacetabular-impingement-a-ct-based-study
#15
Tomohiro Mimura, Kanji Mori, Shin Itakura, Yuki Furuya, Taku Kawasaki, Shinji Imai
BACKGROUND: Femoroacetabular impingement (FAI) is thought to be associated with hip osteoarthritis. We investigated the prevalences of radiologic deformities of the pincer, cam, and their combinations in Japanese hip joints using computed tomography (CT) according to the Japanese Hip Society diagnostic guideline for FAI. METHODS: Multi-slice CT images were evaluated. Pincer deformities were defined as: type 1: center-edge angle (CE) ≥40°; type 2: CE ≥ 30° and acetabular roof obliquity ≤0°; type 3: CE ≥ 25° and retroverted acetabulum...
October 6, 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/27696746/cam-deformity-and-acetabular-dysplasia-as-risk-factors-for-hip-osteoarthritis
#16
Fatemeh Saberi Hosnijeh, Maria E Zuiderwijk, Mathijs Versteeg, Hieronymus T W Smeele, Albert Hofman, André G Uitterlinden, Rintje Agricola, Edwin H G Oei, Jan H Waarsing, Sita M Bierma-Zeinstra, Joyce B J van Meurs
OBJECTIVE: Cam deformity and acetabular dysplasia have been recognized as relevant risk factors for hip osteoarthritis (OA) in a few prospective studies with limited sample sizes. To date, however, no evidence is available from prospective studies regarding whether the magnitude of these associations differs according to sex, body mass index (BMI), and age. METHODS: Participants in the Rotterdam Study cohort including men and women ages 55 years or older without OA at baseline (n = 4,438) and a mean follow-up of 9...
January 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/27667555/effect-of-geometry-on-deformation-of-anterior-implant-supported-zirconia-frameworks-an-in-vitro-study-using-digital-image-correlation
#17
Nuno Calha, Ana Messias, Fernando Guerra, Beatriz Martinho, Maria Augusta Neto, Pedro Nicolau
PURPOSE: To evaluate the effect of geometry on the displacement and the strain distribution of anterior implant-supported zirconia frameworks under static load using the 3D digital image correlation method. METHODS: Two groups (n=5) of 4-unit zirconia frameworks were produced by CAD/CAM for the implant-abutment assembly. Group 1 comprised five straight configuration frameworks and group 2 consisted of five curved configuration frameworks. Specimens were cemented and submitted to static load up to 200N...
September 22, 2016: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/27635595/editorial-cam-deformity-and-acetabular-dysplasia-as-risk-factors-for-hip-osteoarthritis
#18
EDITORIAL
Young-Jo Kim
No abstract text is available yet for this article.
January 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/27590644/what-are-the-results-of-surgical-treatment-of-hip-dysplasia-with-concomitant-cam-deformity
#19
Jens Goronzy, Lea Franken, Albrecht Hartmann, Falk Thielemann, Anne Postler, Tobias Paulus, Klaus-Peter Günther
BACKGROUND: Periacetabular osteotomy (PAO) is a reliable procedure to correct the deficient acetabular coverage in hips with developmental dysplasia. It is unclear how the presence of additional femoral cam-type deformity might influence the clinical and radiographic treatment results of PAO. QUESTIONS/PURPOSES: (1) Are there differences in clinical scores (WOMAC, EQ-5D) and examination findings (impingement sign) or radiographic measures of acetabular orientation and head sphericity after PAO for isolated acetabular dysplasia when compared with the combined pathology of dysplasia and additional femoral cam deformity? (2) Are these clinical and radiographic findings after combined surgical therapy for additional cam deformity influenced by different pathology-adjusted surgical techniques? METHODS: From July 2005 to December 2010, 86 patients (106 hips) underwent PAO for hip dysplasia...
September 2, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27587515/ct-based-morphological-assessment-of-the-hip-joint-in-japanese-patients-association-with-radiographic-predictors-of-femoroacetabular-impingement
#20
K Mineta, T Goto, K Wada, Y Tamaki, D Hamada, I Tonogai, K Higashino, K Sairyo
AIMS: Femoroacetabular impingement (FAI) has been highlighted and well documented primarily in Western countries and there are few large studies focused on FAI-related morphological assessment in Asian patients. We chose to investigate this subject. PATIENTS AND METHODS: We assessed the morphology of the hip and the prevalence of radiographic FAI in Japanese patients by measuring predictors of FAI. We reviewed a total of 1178 hips in 695 men and 483 women with a mean age of 58...
September 2016: Bone & Joint Journal
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