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https://www.readbyqxmd.com/read/28210944/postoperative-imaging-in-arthroscopic-hip-surgery
#1
REVIEW
F Di Pietto, V Chianca, R de Ritis, E Cesarano, A Reginelli, A Barile, M Zappia, L Ginolfi
Arthroscopic surgery of the hip, compared to that of the knee or the shoulder, has only recently been developed in any significant way. Current indications for arthroscopic surgery of the hip include: diagnosis and treatment of lesions symptomatic of the acetabular labrum, femoroacetabular impingement (FAI), chondral lesions, joint infections, lesions of the teres ligament, impingement of the psoas tendon, pathology of the peritrochanteric space, external snapping hip (coxa saltans), and traumatic and atraumatic instability...
February 16, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28203594/foot-progression-angle-walking-test-a-dynamic-diagnostic-assessment-for-femoroacetabular-impingement-and-hip-instability
#2
Anil S Ranawat, Michael A Gaudiani, Pablo A Slullitel, James Satalich, Brian J Rebolledo
BACKGROUND: Determining an accurate clinical diagnosis for nonarthritic hip pain may be challenging, as symptoms related to femoroacetabular impingement (FAI) or hip instability can be difficult to elucidate with current testing methods. In addition, commonly utilized physical examination maneuvers are static and do not include a dynamic or weightbearing assessment to reproduce activity-related symptoms. Therefore, implementing a dynamic assessment for FAI and hip instability could help to improve diagnostic accuracy for routine clinical examinations of patients with nonarthritic hip pain...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28199924/hip-ankle-coordination-during-gait-in-individuals-with-chronic-ankle-instability
#3
Sheng-Che Yen, Kevin K Chui, Marie B Corkery, Elizabeth A Allen, Caitlin M Cloonan
Individuals with chronic ankle instability (CAI) may have sensorimotor impairments that affect control at the hip in addition to the ankle. The purpose of this study was to compare hip-ankle coordination and coordination variability between individuals with CAI and healthy individuals during walking. Ten healthy subjects and 10 subjects with CAI were recruited to walk on a treadmill. Hip-ankle coordination was quantified using vector coding, and coordination variability was quantified using coefficient of correspondence...
February 7, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28164052/treatment-of-stiff-elbow-in-young-patients-with-interpositional-arthroplasty-for-mobility-case-series
#4
R Sivakumar, V SomaSheker, Prahalad Kumar Shingi, T Vinoth, M Chidambaram
INTRODUCTION: The elbow is a complex joint involving many articulations and complex biomechanics come into play. Elbow motion is crucial to upper limb movement that loss of 50% of elbow function equals to loss of 80% of upper extremity global function. Restoring movement and stability is challenging to the surgeon while treating a stiff elbow. Unlike other arthroplasties of hip and knee, total elbow arthroplasty (TEA) may not be a primary treatment. Interpositional arthroplasty (IPA) can be considered a viable option in posttraumatic arthritis of elbow in young patients...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28153459/total-hip-arthroplasty-in-the-spinal-deformity-population-does-degree-of-sagittal-deformity-affect-rates-of-safe-zone-placement-instability-or-revision
#5
Edward M DelSole, Jonathan M Vigdorchik, Ran Schwarzkopf, Thomas J Errico, Aaron J Buckland
BACKGROUND: Changes in spinal alignment and pelvic tilt alter acetabular orientation in predictable ways, which may have implications on stability of total hip arthroplasty (THA). Patients with sagittal spinal deformity represent a subset of patients who may be at particularly high risk of THA instability because of postural compensation for abnormal spinal alignment. METHODS: Using standing stereoradiography, we evaluated the spinopelvic parameters, acetabular cup anteversion, and inclination of 139 THAs in 107 patients with sagittal spinal deformity...
December 27, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28149735/dynamic-hip-examination-for-assessment-of-impingement-during-hip-arthroscopy
#6
Renato Locks, Jorge Chahla, Justin J Mitchell, Eduardo Soares, Marc J Philippon
Arthroscopic procedures for treatment of hip pathology are growing exponentially as a result of continued improvements in the understanding of intra- and extra-articular hip anatomy and technological advancements in instrumentation. Nevertheless, it has been reported that the main cause of revision hip arthroscopy is related to a suboptimal intrasurgical management of the abnormal morphology in femoroacetabular impingement (FAI). Under-resection, over-resection, and in some cases combined under-resection and over-resection at different locations of the cam lesion at the femoral head-neck junction may lead to poor outcomes as a result of residual impingement or the iatrogenic creation of structural instability...
December 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28138720/the-dual-mobility-cup-in-muscular-skeletal-oncology-rationale-and-indications
#7
Carmine Zoccali, Dario Attala, Alessandra Scotto di Uccio, Barbara Rossi, Gennaro Scotto, Roberto Biagini
PURPOSE: Because of the improvement of medical therapy and the corresponding increase in life expectancy, orthopaedic surgeons are obliged to perform more wide resections rather than intramedullary stabilization nailing for patients affected by tumours of the hip compared to the past. Wide resection often causes joint instability, so prosthetic reconstruction presents a higher risk of dislocation than in primary osteoarthritis cases. The aim of the present paper is to classify the indications for the dual mobility cup (DMC) hip prosthesis based on the anatomic structures involved in the disease and to analyse the rationale to reduce the risk of dislocation...
January 31, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28127741/evaluation-of-repair-of-the-hip-labrum-under-simulated-full-weight-bearing
#8
Jason L Koh, Kavish Gupta
INTRODUCTION: Repairs of labral tears are performed for unstable tears, hip instability, and after detachment concomitant to the treatment of femoroacetabular impingement (FAI), but limited data is known about the strength of repair. This study evaluated the effect of simulated axial weight-bearing on suture anchor based repair of the acetabular labrum. METHODS: 3 cadaveric pelvises underwent creation of a 1.5 cm anterior-superior labral tear in each hip. The tears were then repaired using 2 suture anchors per hip...
January 24, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28120020/hip-arthroscopic-capsulotomy-techniques-and-capsular-management-strategies-a-systematic-review
#9
Seper Ekhtiari, Darren de Sa, Chloe E Haldane, Nicole Simunovic, Christopher M Larson, Marc R Safran, Olufemi R Ayeni
PURPOSE: Hip arthroscopy is increasingly used to address hip joint pathology. Iatrogenic instability has been reported as a potential complication, leading to the evaluation of various capsular management strategies. The purpose of this review was to (1) report the techniques used for capsulotomy in hip arthroscopy, (2) understand techniques and indications for capsular closure, and (3) report outcomes based on capsular management strategy. METHODS: MEDLINE, EMBASE, and PubMed were searched and screened in duplicate for relevant studies...
January 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28116449/-treatment-of-femoral-shaft-fractures-in-children-and-adolescents-%C3%A2-50%C3%A2-kg-a%C3%A2-retrospective-multicenter-trial
#10
M Rapp, R Kraus, P Illing, D W Sommerfeldt, M M Kaiser
BACKGROUND: Operative treatment of diaphyseal fractures of the femur in older children and adolescents remains controversial due to multiple surgical options and higher complication rates in single-center studies compared to younger children. This retrospective multicenter study aimed to register early and late complications in day-by-day treatment. MATERIAL AND METHODS: Sixteen hospitals with particular expertise in pediatric orthopedic trauma participated in this study...
January 23, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28116264/failure-of-polyethelene-insert-locking-mechanism-after-a-posterior-stabilised-total-knee-arthroplasty-a-case-report
#11
Gurava Reddy Ay, Soundar Rajan D, Chiranjeevi T, Karthik C, Krishna Kiran E
INTRODUCTION: Disengagement of polyethylene insert used in total knee arthroplasty is a rare but serious complication. Still rarer is disengagement because of failure of tibial insert locking mechanism. We report a previously unpublished complication of polyethylene insert locking mechanism failure in a 10-months-old posterior stabilized total knee arthroplasty in a 70-year-old woman with osteoarthritis for whom Attune (Depuy) knee implant was used. CASE PRESENTATION: A 70-year-old female underwent (Attune, Depuy) primary bilateral posterior stabilised total knee arthroplasty in a private hospital...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28108774/-hip-dislocation-after-revision-arthroplasty-risk-assessment-and-treatment-strategies
#12
P M Prodinger, J Schauwecker, H Mühlhofer, N Harrasser, F Pohlig, C Suren, R von Eisenhart-Rothe
With a dislocation rate of up to 35% after revision total hip arthroplasty (THA), instability is one of the major causes why this procedure fails. Independent factors for patients at risk are age, sex, and the type of revision needed. The surgical approach, implant choice, and positioning of the components are factors that the surgeon can influence to keep the dislocation rate low. Large femoral heads or double mobility (DM) cups can increase the stability of the joint. After detailed failure analysis, targeted use of different technical innovations enhances stability in revision THA and prevents further revisions...
February 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28099299/direct-anterior-approach-risk-factor-for-early-femoral-failure-of-cementless-total-hip-arthroplasty-a-multicenter-study
#13
R Michael Meneghini, Addison S Elston, Antonia F Chen, Michael M Kheir, Thomas K Fehring, Bryan D Springer
BACKGROUND: The direct anterior approach for total hip arthroplasty (THA) is marketed with claims of superiority over other approaches. Femoral exposure can be technically challenging and potentially lead to early failure. We examined whether surgical approach is associated with early THA failure. METHODS: A retrospective review of 478 consecutive early revision THAs performed within 5 years after the primary THAs at 3 academic centers from 2011 through 2014 was carried out...
January 18, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28098581/timing-of-pavlik-harness-initiation-can-we-wait
#14
Jill E Larson, Anay R Patel, Brian Weatherford, Joseph A Janicki
BACKGROUND: Developmental dysplasia of the hip is effectively treated with a Pavlik harness (PH) within the first 6 months of life. Over 80% of unstable hips in the newborn period will naturally stabilize by 2 months of age. If there is no difference in the effectiveness of initiating PH treatment at 1 week compared with 4 weeks of age, waiting may allow the hips to naturally stabilize and avoid treatment. The purpose of this study is to evaluate whether the timing of PH implementation influences its effectiveness in the treatment of developmental dysplasia of the hip...
January 16, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28091768/total-hip-arthroplasty-instability-treatment-without-dual-mobility-cups-brief-overview-and-experience-of-other-options
#15
REVIEW
Luigi Zagra, Eleonora Caboni
Dual mobility cups are getting increasing interest for the prevention, but also in the treatment of THA instability. Nevertheless when a dislocation occurs the main issue remains the knowledge and the correction of the causes of dislocation, including reorientation of the components and soft tissues treatment. There are several options of alternative implants to DMCs including upsizing of the head, and constrained liners. The Authors present how to evaluate patients with THA instability, the advantages and the disadvantages of each procedure and their experience in the treatment of cases without DMCs during a five years' time period...
January 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28074257/outcomes-of-dual-mobility-cups-in-a-young-middle-eastern-population-and-its-influence-on-life-style
#16
Chahine Assi, Elie El-Najjar, Camille Samaha, Kaissar Yammine
Dual mobility cups (DMC) in total hip arthroplasty (THA) are becoming popular among orthopaedic surgeons. Substantial benefit of their use has been reported among high risk patients, particularly in reducing post-operative hip instability (dislocation). Many reports stated some concern when implanted in young and active people where complications such as polyethylene wear and mechanical loosening could potentially be higher. This Middle Eastern study analyses a retrospective series of THA for any aetiology other than infection, using DMC for the acetabular component in 75 patients (85 implants) less than 70 years old...
January 10, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28073094/the-role-of-lesser-trochanter-fragment-in-unstable-pertrochanteric-a2-proximal-femur-fractures-is-refixation-of-the-lesser-trochanter-worth-the-effort
#17
Christian Ehrnthaller, Alain Christoph Olivier, Florian Gebhard, Lutz Dürselen
BACKGROUND: Instability of osteoporotic pertrochanteric fractures is defined by loss of medial/lateral cortical integrity with the posteromedial fragment including the lesser trochanter being pivotal for load distribution. Literature addressing the importance of lesser trochanter refixation is scarce. To clarify the effect of lesser trochanter refixation on primary stability in these fractures, following study was performed. METHODS: 21 femora were match-paired in 3 groups and osteotomized, creating pertrochanteric fractures (AO-31A2)...
December 30, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/28070611/dual-mobility-cups-provide-biomechanical-advantages-in-situations-at-risk-for-dislocation-a-finite-element-analysis
#18
Alexandre Terrier, Adeliya Latypova, Maika Guillemin, Valérie Parvex, Olivier Guyen
PURPOSE: Constrained devices, standard implants with large heads, and dual mobility systems have become popular options to manage instability after total hip arthroplasty (THA). Clinical results with these options have shown variable success rates and significant higher rates of aseptic loosening and mechanical failures with constrained implants. Literature suggests potential advantages of dual mobility, however little is known about its biomechanics. We present a comparative biomechanical study of a standard implant, a constrained implant, and a dual mobility system...
January 9, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28067582/the-relationship-of-hip-muscle-performance-to-leg-ankle-and-foot-injuries-a-systematic-review
#19
Nili Steinberg, Gali Dar, Martin Dunlop, James Edmund Gaida
OBJECTIVES: Hip control affects movement and muscle firing patterns in the leg, ankle and foot, and may contribute to overuse injuries. Muscle performance can be measured as strength, endurance or muscle activation patterns. Our objective was to systematically review whether hip muscle performance is associated with leg, ankle and foot injuries. DATA SOURCES: A structured and comprehensive search of six medical literature databases was combined with forward and backward citation tracking (AMED, CINAHL, EMBASE, Medline, Scopus and SportDiscus)...
January 19, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28066739/hip-instability-a-review-of-hip-dysplasia-and-other-contributing-factors
#20
REVIEW
Matthew J Kraeutler, Tigran Garabekyan, Cecilia Pascual-Garrido, Omer Mei-Dan
BACKGROUND: Hip instability has classically been associated with developmental dysplasia of the hip (DDH) in newborns and children. However, numerous factors may contribute to hip instability in children, adolescents, and adults. PURPOSE: This review aims to concisely present the literature on hip instability in patients of all ages in order to guide health care professionals in the appropriate diagnosis and treatment of the various disorders which may contribute to an unstable hip...
July 2016: Muscles, Ligaments and Tendons Journal
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