45 research outputs found
The HAND-Q : Psychometrics of a New Patient-reported Outcome Measure for Clinical and Research Applications
Background: The perspective of the patient in measuring the outcome of their hand treatment is of key importance. We developed a hand-specific patient-reported outcome measure to provide a means to measure outcomes and experiences of care from the patient perspective, that is, HAND-Q. Methods: Data were collected from people with a broad range of hand conditions in hand clinics in six countries between April 2018 and January 2021. Rasch measurement theory analysis was used to perform item reduction and to examine reliability and validity of each HAND-Q scale. Results: A sample of 1277 patients was recruited. Participants ranged in age from 16 to 89 years, 54% were women, and a broad range of congenital and acquired hand conditions were represented. Rasch measurement theory analysis led to the refinement of 14 independently functioning scales that measure hand appearance, health-related quality of life, experience of care, and treatment outcome. Each scale evidenced reliability and validity. Examination of differential item functioning by age, gender, language, and type of hand condition (ie, nontraumatic versus traumatic) confirmed that a common scoring algorithm for each scale could be implemented. Conclusions: The HAND-Q was developed following robust psychometric methods to provide a comprehensive modular independently functioning set of scales. HAND-Q scales can be used to assess and compare evidence-based outcomes in patients with any type of hand condition.Peer reviewe
Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign
Abstract: In 2017, the Event Horizon Telescope (EHT) Collaboration succeeded in capturing the first direct image of the center of the M87 galaxy. The asymmetric ring morphology and size are consistent with theoretical expectations for a weakly accreting supermassive black hole of mass âŒ6.5 Ă 109 M â. The EHTC also partnered with several international facilities in space and on the ground, to arrange an extensive, quasi-simultaneous multi-wavelength campaign. This Letter presents the results and analysis of this campaign, as well as the multi-wavelength data as a legacy data repository. We captured M87 in a historically low state, and the core flux dominates over HST-1 at high energies, making it possible to combine core flux constraints with the more spatially precise very long baseline interferometry data. We present the most complete simultaneous multi-wavelength spectrum of the active nucleus to date, and discuss the complexity and caveats of combining data from different spatial scales into one broadband spectrum. We apply two heuristic, isotropic leptonic single-zone models to provide insight into the basic source properties, but conclude that a structured jet is necessary to explain M87âs spectrum. We can exclude that the simultaneous Îł-ray emission is produced via inverse Compton emission in the same region producing the EHT mm-band emission, and further conclude that the Îł-rays can only be produced in the inner jets (inward of HST-1) if there are strongly particle-dominated regions. Direct synchrotron emission from accelerated protons and secondaries cannot yet be excluded
Prise en charge des luxations antérieures d'épaule aux urgences
MONTPELLIER-BU MĂ©decine UPM (341722108) / SudocMONTPELLIER-BU MĂ©decine (341722104) / SudocSudocFranceF
Etude médico-économique comparative prospective de deux cohortes de fracture du radius distal à bascule postérieure (ostéosynthÚse par plaque palmaire verrouillée versus ostéosynthÚse par embrochage mixte)
LILLE2-BU Santé-Recherche (593502101) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF
Arthroscopic Dorsal Capsuloplasty in Scapholunate Tears EWAS 3: Preliminary Results after a Minimum Follow-up of 1 Year
International audiencePurpose We retrospectively evaluated the results of all arthroscopic dorsal scapho-lunate (SL) capsuloplasty without pinning in patients presenting predynamic instability and dorsal capsuloscapholunate septum lesions on arthro-computed tomography scan after failed medical treatment. Materials and Methods Fifteen patients, mean age 34.3 years, underwent all arthroscopically assisted dorsal capsuloplasty. Patients were assessed preoperatively and postoperatively by a clinical (pain, Watson's test, range of motion, and strength), functional (quick disabilities of the arm, shoulder, and hand), patient-rated wrist evaluation, and Mayo wrist score scores), and radiological (SL gap and dorsal inter-calated segmental instability [DISI]) examination. SL tears were evaluated during surgery by European Wrist Arthroscopy Society (EWAS) classification. Results The mean follow-up period was 20.2 months (range, 12-41). Preoperatively, positive Watson's test was noted in all cases. DISI deformity was noted in three cases without any SL gap. The SL instability was graded EWAS IIIB (n Œ 8) or EWAS IIIC (n Œ 7). Postoperatively, positive Watson's test was noted in only one case. Activity pain decreased from 7.8 preoperatively to 2.4 postoperatively. Range of motion in flexion-extension increased from 92.9 degrees preoperatively to 126.2 degrees post-operatively. Grip strength increased from 24.2 preoperatively to 38.2 postoperatively. At final follow-up, range of motion in flexion-extension and grip strength were estimated at 87 and 91% compared with contralateral side, respectively. All functional scores were significantly improved at the last follow-up. No radiographic SL gapping in grip views or DISI deformity was noted. Discussion Cadaveric studies demonstrated that the dorsal portion of SL ligament is critical for the stability of the SL complex. The entire arthroscopic SL capsuloplasty technique provides reliable results for pain relief, avoiding postoperative stiffness associated with open procedures. It is an alternative technique for patients with predynamic SL instability after failure of medical management and shall not prelude the resort to any further open procedure. Level of Evidence This is a level IV, case series
La tĂ©notomie endoscopique du muscle piriforme permet-elle une libĂ©ration complĂšte du tendon en toute sĂ©curitĂ©Â ? Ă propos dâune Ă©tude cadavĂ©rique
International audienceBackgroundLa tĂ©notomie endoscopique du piriforme (TEP) fait partie de lâarsenal thĂ©rapeutique du syndrome du piriforme. DĂ©crite comme une section musculaire en regard du nerf sciatique elle nĂ©cessite une approche de lâespace sous-glutĂ©al, riche en Ă©lĂ©ments vasculo-nerveux. Cette Ă©tude avait pour objectifs : dâĂ©valuer la libĂ©ration du piriforme par une tĂ©notomie endoscopique proche du grand trochanter ; de dĂ©pister les lĂ©sions iatrogĂšnes et ; dâen prĂ©ciser les marges de sĂ©curitĂ©.HypothĂšseLa TEP au grand trochanter permet une libĂ©ration complĂšte du muscle avec un risque limitĂ© de lĂ©sions vasculo-nerveuses.MatĂ©riel et mĂ©thodeUne TEP a Ă©tĂ© rĂ©alisĂ©e en dĂ©cubitus ventral, par deux voies dâabord sur 10 hanches cadavĂ©riques, conservĂ©es par une solution de chlorure de zinc. Une troisiĂšme voie dâabord accessoire a Ă©tĂ© nĂ©cessaire dans 7 cas. Une dissection secondaire par voie de Kocher-Langenbeck Ă©valuait la tĂ©notomie, dĂ©pistait les lĂ©sions iatrogĂšnes et mesurait les distances entre siĂšge de TEP, nerf sciatique et artĂšre glutĂ©ale infĂ©rieure.RĂ©sultatsLa tĂ©notomie a Ă©tĂ© complĂšte dans 9 cas (90 %). Dans 2 cas (20 %) le tendon restait adhĂ©rent Ă la capsule et dans un cas le tendon prĂ©sentait une dĂ©sinsertion acquise. Le nerf sciatique et lâartĂšre glutĂ©ale infĂ©rieure nâont jamais Ă©tĂ© lĂ©sĂ©s et leurs distances moyennes avec le siĂšge de tĂ©notomie Ă©taient respectivement de 5,21 centimĂštres (cm) + â0,59 (4,5â6,6) et de 7,1 cm + â0,89 (5,4â8,5).DiscussionLa tĂ©notomie endoscopique du piriforme au niveau du grand trochanter sans neurolyse sciatique permet une libĂ©ration compĂšte du muscle avec des marges de sĂ©curitĂ© satisfaisantes, aux dĂ©pens dâune courbe dâapprentissage rapide.Niveau de preuveIII, Ătude prospective cadavĂ©rique â cas tĂ©moin
Feasibility of a new arthroscopic shelf acetabuloplasty technique for hip instability related to moderate dysplasia
International audienceDysplasia-related hip instability causes pain and intra-articular derangement. The bone, the joint capsule, and the labrum are involved. We describe a surgical procedure of limited invasiveness that corrects the dysplasia by creating an acetabular shelf, repairs the secondary lesions by suturing the labrum and tightening the capsule, and corrects cam femoro-acetabular impingement if present
Ătude de faisabilitĂ© dâune nouvelle technique de butĂ©e acĂ©tabulaire arthroscopique dans la prise en charge de lâinstabilitĂ© de hanche modĂ©rĂ©ment dysplasique
International audienceLâinstabilitĂ© de hanche dysplasique est Ă lâorigine de douleurs et de dĂ©rangements intra-articulaires. La pathogĂ©nie de cette symptomatologie est double : osseuse et capsulo-labrale. La technique que nous proposons permet une correction peu invasive de la dysplasie osseuse par la rĂ©alisation dâune butĂ©e acĂ©tabulaire, la rĂ©paration des lĂ©sions secondaires (labrale par suture, laxitĂ© capsulaire par capsulorraphie), et de la came fĂ©morale Ă©ventuelle
Evaluation de la courbe dâapprentissage et des risques de la libĂ©ration du nerf mĂ©dian au canal carpien par section du ligament rĂ©tinaculaire sous endoscopie ou sous Ă©chographie : Ă©tude cadavĂ©rique comparative entre chirurgien junior et senior (30 cas)
International audienceIntroductionLa section du ligament transverse du carpe (LTC) sous assistance Ă©chographique a Ă©tĂ© dĂ©crite par des opĂ©rateurs entrainĂ©s. Lâapprentissage de cette technique nâa pas Ă©tĂ© comparĂ© avec la technique endoscopique. Lâobjectif de cette Ă©tude Ă©tait de comparer la courbe dâapprentissage entre un opĂ©rateur senior et junior en Ă©valuant la qualitĂ© du geste par le pourcentage de section (PS) endoscopique du LTC (ECTR), contre Ă©chographie (UCTR), ainsi que le risque de lĂ©sions des Ă©lĂ©ments anatomiques de la rĂ©gion.MatĂ©riel et mĂ©thodesIl sâagissait dâune Ă©tude cadavĂ©rique comparative incluant 30 poignets sans dĂ©formation (5 frais, 15 conservĂ©s). Une section du LCT Ă©tait rĂ©alisĂ©e, soit par ECTR, soit par UCTR. AprĂšs la procĂ©dure, chaque poignet Ă©tait dissĂ©quĂ© afin dâĂ©valuer la qualitĂ© de section du LTC et la prĂ©sence de lĂ©sions anatomiques. LâopĂ©rateur senior avait effectuĂ© 5 ECTR et 5 UCTR contre respectivement 6 et 14 pour lâopĂ©rateur junior. Les donnĂ©es quantitatives Ă©taient analysĂ©es par un test de Student, les donnĂ©es qualitatives par un test du Ï2.RĂ©sultatsPour le chirurgien senior, la section Ă©tait respectivement Ă 99,8 % en ECTR et 99,3 % en UCTR (p > 0,05), sans lĂ©sion des structures adjacentes. Pour le chirurgien junior, il nây avait pas de diffĂ©rence statistiquement significative concernant le PS du LTC (moyenne de 87,2 % en ECTR versus en 90,6 % UCTR, p > 0,05) entre les deux techniques. Aucune diffĂ©rence statistique nâĂ©tait retrouvĂ©e pour la qualitĂ© de section transversale, le nombre de passages nĂ©cessaires (1,83 en UCTR versus 1,64 ECTR), le nombre de lĂ©sions anatomiques constatĂ©es (3 UCTR versus 2 ECTR). Il nây avait aucune lĂ©sion nerveuse, une lĂ©sion de long flĂ©chisseur du pouce et du flĂ©chisseur commun superficiel par UCTR, deux lĂ©sions de lâarche palmaire superficielle. Pour chaque opĂ©rateur, la section Ă©tait effectuĂ©e en moyenne Ă distance des structures nobles, dans les deux techniques, soit Ă 4,9 cm de lâĂ©mergence de la branche palmaire du nerf mĂ©dian et Ă 1,6 cm de lâarche palmaire superficielle. Environ 10 poignets ont Ă©tĂ© nĂ©cessaires Ă lâapprentissage de la technique Ă©chographique contre 3 en endoscopie pour lâopĂ©rateur junior.DiscussionLa technique de libĂ©ration du nerf mĂ©dian par Ă©chographie semble une technique prometteuse comme le suggĂšre dĂ©jĂ la littĂ©rature, cependant, son apprentissage nĂ©cessite une formation complĂ©mentaire en Ă©chographie par rapport Ă la technique actuelle de lâend.ConclusionBien quâaccessible et sĂ»re, lâenseignement de cette technique bĂ©nĂ©ficie trĂšs certainement dâune place importante de la simulation ou de formations sur cadavres, car le risque de lĂ©sion nâest pas anodin au dĂ©but de lâapprentissage