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Cam deformity

Michael Ryan, Thomas Youm, Jonathan Vigdorchik
Hip arthroscopy as we know it today developed over the last 15 to 20 years, yet its true beginning is far more dated. Initially developed as a means of removing loose bodies or as a means of lavage, hip arthroscopy was not utilized to treat femoroacetabular impingement (FAI) until much later. Its usefulness as a means of treating FAI did not arise until hip impingement was understood to be causal in the development of degenerative changes of the labrum and articular surfaces. As our understanding of FAI grew, the tools for treating it developed in tandem...
March 2018: Bulletin of the Hospital for Joint Diseases
Vikas H Malojirao, V Vigneshwaran, Prabhu Thirusangu, Riaz Mahmood, B T Prabhakar
Aim Deformity in the cellular homeostatic event associated with cell survival and apoptosis are committing factors for carcinogenesis. Interventions of these events by pharmacologically active agent gain predominance in cancer treatment. In current investigation Solanidine, a steroidal alkaloid was evaluated on tumorigenesis by targeting death signal using multiple tumor cells and model systems. MAIN METHODS: Anti-proliferative effect was evaluated using cytotoxic studies. Prolonged cytotoxic effect of Solanidine was examined by colony formation assay...
March 7, 2018: Life Sciences
K C Geoffrey Ng, Mario Lamontagne, Jonathan R T Jeffers, George Grammatopoulos, Paul E Beaulé
BACKGROUND: As there is a high prevalence of patients with cam deformities and no ongoing hip dysfunction, understanding the biomechanical factors predicting the onset of symptoms and degenerative changes is critical. One such variable is how the spinopelvic parameters may influence hip and pelvic sagittal mobility. Hypothesis/Purpose: Pelvic incidence may predict sagittal hip and pelvic motions during walking and squatting. The purpose was to determine which anatomic characteristics were associated with symptoms and how they influenced functional hip and pelvic ranges of motion (ROMs) during walking and squatting...
March 1, 2018: American Journal of Sports Medicine
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...
February 23, 2018: Clinical Orthopaedics and related Research
Olga A Kladova, Milena Bazlekowa-Karaban, Sonia Baconnais, Olivier Piétrement, Alexander A Ishchenko, Bakhyt T Matkarimov, Danila A Iakovlev, Andrey Vasenko, Olga S Fedorova, Eric Le Cam, Barbara Tudek, Nikita A Kuznetsov, Murat Saparbaev
The base excision repair (BER) pathway consists of sequential action of DNA glycosylase and apurinic/apyrimidinic (AP) endonuclease necessary to remove a damaged base and generate a single-strand break in duplex DNA. Human multifunctional AP endonuclease 1 (APE1, a.k.a. APEX1, HAP-1, or Ref-1) plays essential roles in BER by acting downstream of DNA glycosylases to incise a DNA duplex at AP sites and remove 3'-blocking sugar moieties at DNA strand breaks. Human 8-oxoguanine-DNA glycosylase (OGG1), methyl-CpG-binding domain 4 (MBD4, a...
February 11, 2018: DNA Repair
Ashley L Kapron, Stephen K Aoki, Jeffrey A Weiss, Aaron J Krych, Travis G Maak
PURPOSE: Develop a framework to quantify the size, location and severity of femoral and acetabular-sided cartilage and labral damage observed in patients undergoing hip arthroscopy, and generate a database of individual defect parameters to facilitate future research and treatment efforts. METHODS: The size, location, and severity of cartilage and labral damage were prospectively collected using a custom, standardized post-operative template for 100 consecutive patients with femoroacetabular impingement syndrome...
February 13, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Dennis Karimi, Thomas Kallemose, Anders Troelsen, Jakob Klit
INTRODUCTION: In Denmark, 20% of all registered total hip arthroplasties (THA) from 1995 to 2014 has been patients younger than 60 years with primary idiopathic osteoarthritis (OA). It is speculated that hip malformations may be a major contributor to early OA development. It has been shown that hip malformation may compromise implant position and, therefore, identifying and knowing the incidence of malformations is important. Our aim was to assess the prevalence and type of hip malformations in a cohort of younger patients undergoing THA...
February 10, 2018: Archives of Orthopaedic and Trauma Surgery
Jiuke Mu, Gang Wang, Hongping Yan, Huayu Li, Xuemin Wang, Enlai Gao, Chengyi Hou, Anh Thi Cam Pham, Lianjun Wu, Qinghong Zhang, Yaogang Li, Zhiping Xu, Yang Guo, Elsa Reichmanis, Hongzhi Wang, Meifang Zhu
The ability to achieve simultaneous intrinsic deformation with fast response in commercially available materials that can safely contact skin continues to be an unresolved challenge for artificial actuating materials. Rather than using a microporous structure, here we show an ambient-driven actuator that takes advantage of inherent nanoscale molecular channels within a commercial perfluorosulfonic acid ionomer (PFSA) film, fabricated by simple solution processing to realize a rapid response, self-adaptive, and exceptionally stable actuation...
February 9, 2018: Nature Communications
J Örtegren, P Peterson, J Svensson, C J Tiderius
OBJECTIVE: Slipped capital femoral epiphysis (SCFE) in adolescence is associated with increased risk of future osteoarthritis (OA). The purpose of this study was to study clinical and radiographic risk factors for early cartilage degeneration after SCFE. DESIGN: 22 patients (44 hips) (mean age 24 years, range 18-27) treated with in situ fixation (The Hansson hook-pin) for stable SCFE on average 11 years previously were investigated. Cartilage status was assessed with delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC)...
February 7, 2018: Osteoarthritis and Cartilage
Jennifer Tangtiphaiboontana, Alan L Zhang, Nirav K Pandya
Intra-articular injection of corticosteroid and anesthetic (CSI) is a useful diagnostic tool for hip pain secondary to labral tears or femoroacetabular impingement (FAI). However, the effectiveness of CSI as a stand-alone treatment for hip pain in adolescents is unknown. The purpose of this study is to evaluate the use of CSI for the treatment of hip pain and determine factors that may affect outcomes after injection. Retrospective analysis of 18 patients and 19 hips that underwent fluoroscopic guided hip injection for the treatment of pain at a single institution from 2012 to 2015 was carried out in this study...
January 2018: Journal of Hip Preservation Surgery
Stuart C Marshall, S Charles Marshall
No abstract text is available yet for this article.
February 7, 2018: Journal of Bone and Joint Surgery. American Volume
Matthew J Kraeutler, Vivek Chadayammuri, Tigran Garabekyan, Omer Mei-Dan
BACKGROUND: The purpose of this study was to investigate the effects of femoral version, cam-type femoroacetabular impingement (FAI), and the combination of the 2 on the passive hip range of motion (ROM). METHODS: We prospectively analyzed a consecutive cohort of 220 patients (440 hips) who presented with unilateral or bilateral hip pain. The passive hip ROM was measured bilaterally with the patient in prone, supine, and lateral positions. Femoral version was measured and the presence of cam-type deformity was determined on preoperative computed tomography (CT) scans...
February 7, 2018: Journal of Bone and Joint Surgery. American Volume
Helen Anwander, Martin Beck, Lorenz Büchler
Anatomy and biomechanics of the human hip joint are a consequence of the evolution of permanent bipedal gait. Habitat and behaviour have an impact on hip morphology and significant differences are present even within the same biological family. The forces acting upon the hip joint are mainly a function of gravitation and strength of the muscles. Acetabular and femoral anatomy ensure an inherently stable hip with a wide range of motion. The femoral head in first human ancestors with upright gait was spherical (coxa rotunda)...
February 5, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Mohammad Taghi Karimi, Timon Rabczuk, Mahsa Kavyani
BACKGROUND: Scoliosis is a three-dimensional deformity of the spine and rib cage. Depending on the severity of this disease, various kinds of treatment methods have been used and bracing is among the most common. One of the braces which has been used for subjects with scoliosis is the Chêneau brace. The aim of this review was to evaluate the efficiency of the Chêneau brace on the scoliosis curve progression and control based on the available literature. METHOD: We conducted a Medline search via PubMed, Google Scholar, ISI Web of Sciences, Ebsco and Scopus...
February 1, 2018: Der Orthopäde
George Grammatopoulos, Andrew D Speirs, K C Geoffrey Ng, Charles Riviere, Kawan S Rakhra, Mario Lamontagne, Paul E Beaule
Acetabular and spino-pelvic (SP) morphological parameters are important determinants of hip joint dynamics. This prospective study aimed to determine whether acetabular and SP morphological differences exist between hips with and without cam morphology and between symptomatic and asymptomatic hips with cam morphology. A cohort of 67 patients/hips was studied. Hips were either asymptomatic with no cam (Controls, n = 18), symptomatic with cam (n = 26) or asymptomatic with cam (n = 23). CT-based quantitative assessments of femoral, acetabular, pelvic, and spino-pelvic parameters were performed...
January 11, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
John P Salvo, Shane J Nho, Andrew B Wolff, John J Christoforetti, Geoffrey S Van Thiel, Thomas J Ellis, Dean K Matsuda, Benjamin R Kivlan, Zaira S Chaudhry, Dominic S Carreira
PURPOSE: To compare preoperative, radiographic, and intraoperative findings between male and female patients undergoing hip arthroscopy. METHODS: We performed a retrospective review of a multicenter registry of patients undergoing hip arthroscopy between January 2014 and January 2017. Perioperative data from patients who consented to undergo surgery and completed preoperative patient-reported outcome questionnaires were analyzed to determine the effect of sex on preoperative symptoms, patient-reported outcomes, radiographic measures, and surgical procedures...
December 19, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
Yu Wang, Yiqun Zhang, Zhen Zhang, Xiang Li, Jianwei Pan, Jihua Li
BACKGROUND: The mandibular contour plays a significant role in the beautiful and youthful look but the reconstruction remains a challenging problem. The objective of this study was to evaluate the use of individualized high-density porous polyethylene (Medpor®) implants for comprehensive reconstruction of mandibular contour with the aid of computer-aided design/computer-aided manufacturing (CAD/CAM). METHODS: From 2010 to 2014, 12 patients with mandibular contour deformities were enrolled in our retrospective study...
December 19, 2017: Aesthetic Plastic Surgery
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
Kirsten L Poehling-Monaghan, Aaron J Krych, Bruce A Levy, Robert T Trousdale, Rafael J Sierra
Background: The success of hip surgery in treating acetabular retroversion depends on the severity of the structural deformity and on selecting the correct patient for open or arthroscopic procedures. Purpose: To compare a group of patients with retroverted hips treated successfully with hip arthroscopy with a group of patients with retroverted hips that failed arthroscopic surgery, with special emphasis on (1) patient characteristics, (2) perioperative radiographic parameters, (3) intraoperative findings and concomitant procedures, and (4) patient sex...
November 2017: Orthopaedic Journal of Sports Medicine
Dean K Matsuda, Andrew B Wolff, Shane J Nho, John P Salvo, John J Christoforetti, Benjamin R Kivlan, Thomas J Ellis, Dominic S Carreira
PURPOSE: To report observational findings of patients with acetabular dysplasia undergoing hip arthroscopy. METHODS: We performed a comparative case series of multicenter registry patients from January 2014 to April 2016 meeting the inclusion criteria of isolated hip arthroscopy, a documented lateral center-edge angle (LCEA), and completion of preoperative patient-reported outcome measures. A retrospective analysis compared range of motion, intra-articular pathology, and procedures of patients with dysplasia (LCEA ≤25°) and patients without dysplasia (LCEA >25°)...
February 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
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