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Gauci MO, Bonnevialle N, Moineau G, Baba M, Walch G, Boileau P. Anatomical total shoulder arthroplasty in young patients with osteoarthritis: all-polyethylene versus metal-backed glenoid. Bone Joint J 2018; 100-B:485-492. [PMID: 29629579 DOI: 10.1302/0301-620x.100b4.bjj-2017-0495.r2] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Aims Controversy about the use of an anatomical total shoulder arthroplasty (aTSA) in young arthritic patients relates to which is the ideal form of fixation for the glenoid component: cemented or cementless. This study aimed to evaluate implant survival of aTSA when used in patients aged < 60 years with primary glenohumeral osteoarthritis (OA), and to compare the survival of cemented all-polyethylene and cementless metal-backed glenoid components. Materials and Methods A total of 69 consecutive aTSAs were performed in 67 patients aged < 60 years with primary glenohumeral OA. Their mean age at the time of surgery was 54 years (35 to 60). Of these aTSAs, 46 were undertaken using a cemented polyethylene component and 23 were undertaken using a cementless metal-backed component. The age, gender, preoperative function, mobility, premorbid glenoid erosion, and length of follow-up were comparable in the two groups. The patients were reviewed clinically and radiographically at a mean of 10.3 years (5 to 12, sd 26) postoperatively. Kaplan-Meier survivorship analysis was performed with revision as the endpoint. Results A total of 26 shoulders (38%) underwent revision surgery: ten (22%) in the polyethylene group and 16 (70%) in the metal-backed group (p < 0.0001). At 12 years' follow-up, the rate of implant survival was 74% (sd 0.09) for polyethylene components and 24% (sd 0.10) for metal-backed components (p < 0.0002). Glenoid loosening or failure was the indication for revision in the polyethylene group, whereas polyethylene wear with metal-on-metal contact, instability, and insufficiency of the rotator cuff were the indications for revision in the metal-backed group. Preoperative posterior subluxation of the humeral head with a biconcave/retroverted glenoid (Walch B2) had an adverse effect on the survival of a metal-backed component. Conclusion The survival of a cemented polyethylene glenoid component is three times higher than that of a cementless metal-backed glenoid component ten years after aTSA in patients aged < 60 years with primary glenohumeral OA. Patients with a biconcave (B2) glenoid have the highest risk of failure. Cite this article: Bone Joint J 2018;100-B:485-92.
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Affiliation(s)
- M O Gauci
- Institut Universitaire Locomoteur et du Sport, Hôpital Pasteur 2 and Université Nice-Sophia Antipolis, Nice Cedex 1, France
| | - N Bonnevialle
- Centre Hospitalier Universitaire de Toulouse-Purpan, Toulouse, France
| | - G Moineau
- Clinique Pasteur-Lanroze, Brest, France
| | - M Baba
- Sydney Adventist Hospital, Wahroonga, New South Wales, Australia
| | - G Walch
- Centre Médical Santy, Lyon, France
| | - P Boileau
- Institut Universitaire Locomoteur et du Sport, Hôpital Pasteur 2 and Université Nice-Sophia Antipolis, Nice Cedex 1, France
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Abstract
Osteoarthritis results in changes in the dimensions of the glenoid. This study aimed to assess the size and radius of curvature of arthritic glenoids. A total of 145 CT scans were analysed, performed as part of routine pre-operative assessment before total shoulder replacement in 91 women and 54 men. Only patients with primary osteoarthritis and a concentric glenoid were included in the study. The CT scans underwent three-dimensional (3D) reconstruction and were analysed using dedicated computer software. The measurements consisted of maximum superoinferior height, anteroposterior width and a best-fit sphere radius of curvature of the glenoid. The mean height was 40.2 mm (SD 4.9), the mean width was 29 mm (SD 4.3) and the mean radius of curvature was 35.4 mm (SD 7.8). The measurements were statistically different in men and women and had a Gaussian distribution with marked variation. All measurements were greater than the known values in normal subjects. With current shoulder replacement systems using a unique backside radius of curvature for the glenoid component, there is a risk of undertaking excessive reaming to adapt the bone to the component resulting in sacrifice of subchondral bone or under-reaming and instability of the component due to a 'rocking horse' phenomenon.
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Affiliation(s)
- G Walch
- Centre Orthopédique Santy- Hopital Privé Jean MERMOZ, Department of Orthopaedic Surgery, 24 Avenue Paul Santy, Lyon 69008, France
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Cheval D, Sauleau V, Moineau G, Le Jacques B, Le Nen D. Trapézectomie totale et ligamentoplastie de suspension : une interposition par un implant Pi2® en pyrocarbone a-t-elle un intérêt ? ACTA ACUST UNITED AC 2013; 32:169-75. [DOI: 10.1016/j.main.2013.04.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 04/08/2013] [Accepted: 04/15/2013] [Indexed: 11/16/2022]
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Roux A, Decroocq L, El Batti S, Bonnevialle N, Moineau G, Trojani C, Boileau P, de Peretti F. Epidemiology of proximal humerus fractures managed in a trauma center. Orthop Traumatol Surg Res 2012; 98:715-9. [PMID: 23000039 DOI: 10.1016/j.otsr.2012.05.013] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 03/15/2012] [Accepted: 05/21/2012] [Indexed: 02/02/2023]
Abstract
Proximal humerus fractures (PHF) are osteoporotic fractures that affect women over 70 years of age. Like fractures of the femoral neck they have become a public health concern. As the population ages there is an increase in the number of people in poor general condition with an increased risk of falls on fragile bones. The incidence of these fractures has increased by 15% per year. All patients managed for PHF in our center in the past year were included in this prospective study (prospective cohort study; level 2). Three hundred and twenty-five patients were included with 329 fractures. There was a ratio of two women to one man. At the final follow-up 50 patients had died (15%) and 25 patients were lost to follow-up. The mean age was 70 years old. There were two types of risk factors. The first was fragile bones, and the second was patient specific risk of falls. The severity of the fracture increased with the age of the population. In the study by Charles S. Neer in 1970, 85% of PHF were not or were only slightly displaced, while this category percentage was only 42% in our study. Hospitalization was necessary in 43% of the cases in our study. Surgical management was necessary in 21%. This lack of relationship between the percentage of displaced fractures (58%) and the percentage of surgically treated fractures is a sign of the difficulties of managing this population, which is usually in poor general condition.
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Affiliation(s)
- A Roux
- Department of Trauma and Orthopaedic Surgery, Saint-Roch Hospital, Nice Teaching Hospital Center, 15, rue Pierre-Devoluy, 06000 Nice, France.
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Moineau G, Levigne C, Boileau P, Young A, Walch G. Three-dimensional measurement method of arthritic glenoid cavity morphology: feasibility and reproducibility. Orthop Traumatol Surg Res 2012; 98:S139-45. [PMID: 22964089 DOI: 10.1016/j.otsr.2012.06.007] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 06/22/2012] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Glenoid component loosening is the main complication of total shoulder arthroplasty. Better knowledge of the arthritic glenoid cavity anatomy can help in developing new implants and techniques. The goal of this study was to describe and validate the reproducibility of a CT scan-based, 3D measurement method used to describe various parameters characterizing arthritic glenoid cavity morphology. MATERIALS AND METHODS Twelve CT scans and 29 CT arthrogram were evaluated. These scans were taken from 41 patients with glenohumeral osteoarthritis who received an anatomical shoulder prosthesis. A 3D reconstruction of the scapula was performed based on the DICOM files. Following the 3D volume acquisition, points on the glenoid articular surface were manually extracted by three observers, each one three times, allowing one week between readings, to determine the inter- and intra-observer reproducibility. The intraclass correlation coefficient (ICC) was calculated on five 3D parameters that were automatically calculated: glenoïd height, glenoid width, height at maximum width glenoid version and radius of the articular surface best-fit sphere. RESULTS The intra-observer and inter-observer ICC were 0.91 to 0.99, and 0.95 to 0.99, respectively. DISCUSSION This study is the first to report on a reproducible 3D measurement method, based on CT scans, for the arthritic glenoid cavity, which derives the joint radius of curvature among other morphology parameters. These 3D measurements are advantageous because they are free of problems related to patient positioning in the CT scanner and to the choice of slices, which limits the accuracy of measurements made on slices from 2D CT scans. Three-dimensional methodology similar to ours has been validated on healthy glenoids. CONCLUSION This study confirms the reliability and good reproducibility of our method, which allows us to extend this method to a larger patient cohort and adapt this automated technology to preoperative planning software.
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Affiliation(s)
- G Moineau
- Pasteur Private Hospital, 29200 Brest, France.
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Richou J, Chuinard C, Moineau G, Hanouz N, Hu W, Le Nen D. Proximal row carpectomy: long-term results. ACTA ACUST UNITED AC 2009; 29:10-5. [PMID: 19963425 DOI: 10.1016/j.main.2009.10.003] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2009] [Revised: 09/17/2009] [Accepted: 10/21/2009] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To evaluate long-term clinical outcome of proximal carpectomy. Our assumption was that this intervention should result in long-term benefit, making a wrist painless, mobile, and functional, compatible with social and professional life, whatever the initial etiology of the degenerative wrist. METHODS We report a continuous single centre retrospective series of 24 patients. Objective (mobility, strength, radiographic evaluation) and subjective (pain, subjective wrist value, functional scores) functions were assessed by an independent observer. Surgery was performed mainly for Kienbock's disease, scapholunate advanced collapse (SLAC) and scaphoid nonunion advanced collapse (SNAC) wrists. RESULTS The follow-up lasted 116 months in average, during which pain was improved in all cases; 83% of the patients were satisfied with a mean score of 1.2 on a visual analogue scale (VAS) and 76% subjective wrist value (SWV) (disabilities of the arm, shoulder and hand [DASH]: 31). Wrist flexion-extension arc averaged 76 degrees , and the grip strength equivalent to 78% of the contralateral limb. Radiographic modification developed in 52% without any clinical impact. Three patients required arthrodesis and never felt comfortable with their carpectomy. CONCLUSIONS Our study shows a long-term efficacy of proximal row carpectomy. This treatment must be considered in the therapeutic arsenal for a degenerative and painful wrist, and it should no longer be regarded as a salvage procedure. Advantages of this intervention are obvious: technical simplicity, short rehabilitation, immediate functionality of the wrist and few complications.
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Affiliation(s)
- J Richou
- Service de chirurgie orthopédique et traumatologique, faculté de médecine, hôpital de Cavale-Blanche, CHU de Brest, boulevard Tanguy-Prigent, 29200 Brest, France.
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Gérard R, Stindel E, Moineau G, Le Nen D, Lefèvre C. Rotational femoral osteotomies using an endomedullary saw. Orthop Traumatol Surg Res 2009; 95:414-9. [PMID: 19683482 DOI: 10.1016/j.otsr.2009.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2008] [Revised: 03/28/2009] [Accepted: 05/04/2009] [Indexed: 02/02/2023]
Abstract
INTRODUCTION The goal of this retrospective study is to analyze a series of ten patients (11 osteotomies) who underwent closed femoral rotational osteotomy using an endomedullary saw; stabilization was achieved by a locked centromedullary nail. We report the indications, technical aspects, clinical and radiological results as well as intercurrent complications with this surgical technique. HYPOTHESIS Femoral endomedullary osteotomy is a safe procedure to correct malrotations. PATIENTS AND METHODS Eleven femoral rotational osteotomies using an endomedullary saw were performed on ten patients, between January 1999 and July 2007. The indications were post-traumatic rotational malunions or congenital rotational deformities. The angular deformity averaged 33.5 degrees (24 degrees -52 degrees ). They were divided into internal rotation (ten cases) or external rotation (one case). One patient required a bilateral rotational osteotomy because of a congenital femoral malrotation combined to bilateral trochlear dysplasia. Rotational correction was, in two patients, simultaneously associated with a closed lengthening osteotomy. Clinical and radiological follow-up averaged 4 years and 9 months (26-104 months). The angular corrections obtained by these rotation osteotomies were calculated by CAT scans. RESULTS Ten out of eleven osteotomies allowed a correction within a 4 degrees range in relation to the physiological femoral neck anteversion values (or to the contralateral side in the case of a healthy opposite lower extremity). There was no bone, joint, skin, or soft tissues infection, no pseudoarthrosis and no delayed outgrowth. We observed a transient neurological complication in the area of the pudendal nerve, during a combined rotational-lengthening osteotomy, as well as a bilateral femoral fracture during the bilateral rotational osteotomy. In all patients, consolidation occurred within a 3- to 5-month delay. The subjective results showed that eight out of nine patients (one was lost to follow-up) were satisfied or very satisfied with their operation, their functional recovery and the aesthetic aspects of their scars. DISCUSSION Closed rotational osteotomies in adults represent a reliable, effective, safe and reproducible procedure for the correction of femoral torsion problems, whether they are post-traumatic or congenital. These results can be obtained only by respecting the indications and by applying a rigorously planned technique, including expertise in centromedullary nailing. LEVEL OF EVIDENCE Level IV, retrospective therapeutic study.
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Affiliation(s)
- R Gérard
- Orthopaedics, Traumatology and Surgical Reconstructive Department, La Cavale Blanche Hospital, Brest University Hospital Center, boulevard Tanguy-Prigent, 29200 Brest, France.
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Moineau G, Richou J, Liot M, Le Nen D. Prognostic factors for the recovery of hand function following trapeziectomy with ligamentoplasty stabilisation. Orthop Traumatol Surg Res 2009; 95:352-8. [PMID: 19643692 DOI: 10.1016/j.otsr.2009.03.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2008] [Revised: 02/11/2009] [Accepted: 03/17/2009] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Numerous procedures are in use to treat trapeziometacarpal osteoarthritis. Most of these techniques impair hand function. In a series of trapeziectomies stabilized by ligament reconstruction with tendon suspension, we investigated whether eventual parameters influenced hand function and dexterity. HYPOTHESIS Some parameters influence hand function recovery following trapeziectomy combined to ligamento-tendinous stabilization. MATERIALS AND METHODS This is a continuous, retrospective, single surgeon series; 60 cases of thumb trapeziometacarpal osteoarthritis were treated with trapeziectomy and ligament reconstruction (40 palmaris longus, and 20 half flexor carpi radialis) with no additional metacarpophalangeal (MCP) joint surgery. Besides assessing classical clinical outcome criteria (pain, mobility, force), we analyzed hand function: this was obtained with a questionnaire about different everyday movements. Five types of grip were included in this analysis: spherical, pinch grasp, key pinch, power grip, and precision pinch. RESULTS Fifty-one trapeziectomies (85%) were evaluated at an average follow-up of 7.5 years (5-11.5). Ninety-four percent of patients had good results for pain. The average Kapandji score for mobility was 9.6 (6-10) with a mean web angle at 36.5 degrees. Hyperextension of the MCP joint occurred in 36 cases and measured an average of 26 degrees (5 degrees-50 degrees). Compared to the contralateral side average strength was 97% with the Jamar dynamometer and 88% for the key pinch. The rate of satisfaction was 96%. Collapse of trapezial height was constant, and at last follow-up, the trapezial index was 50% of its preoperative initial value. The results relative to hand function assessment were good in 58% of patients. The spherical grip was the most difficult to restore. The analysis of the 42% of patients with average or poor hand function showed five prognostic factors for a poor outcome: young age at surgery, persisting postoperative pain, postoperative hyperextension of the MCP joint, reduced postoperative web angle and trapezial space collapse. LEVEL OF EVIDENCE Level IV. Therapeutic study.
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Affiliation(s)
- G Moineau
- Orthopaedic and Traumatology Department, La Cavale Blanche Teaching Hospital Center, boulevard Tanguy-Prigent, 29200 Brest, France.
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Moineau G, Richou J, Gérard R, Le Nen D. Trapézectomies et ligamentoplasties de suspension au Gore-Tex® : résultats préliminaires sur 43 arthroses trapézométacarpiennes. ACTA ACUST UNITED AC 2008; 27:146-53. [DOI: 10.1016/j.main.2008.07.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2008] [Revised: 06/29/2008] [Accepted: 07/09/2008] [Indexed: 11/30/2022]
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Dubrana F, Lecerf G, Nguyen-Khanh JP, Menard R, Ardouin L, Gibon Y, Pidhorz L, Falaise V, Coipeau P, Burdin P, Rouvillain JL, Navarre T, Garron E, Daoud W, Louboutin H, Moineau G, Wessely L, Stindel E, Debarge R, Lustig S, Lavoie F, Neyret P. Ostéotomie tibiale de valgisation. ACTA ACUST UNITED AC 2008; 94:S2-21. [DOI: 10.1016/j.rco.2008.03.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Stindel E, Merloz P, Graf P, Massin P, Gruber P, Robert H, Moineau G, Colmar M. [Computer assisted orthopedics surgery]. Rev Chir Orthop Reparatrice Appar Mot 2007; 93:2S11-32. [PMID: 17646826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Computer-assisted surgery has become commonplace in orthopedic surgery. The number of applications grows steadily as does the number of patients benefiting from these new techniques. The hearty debates heard when these techniques were first introduced have now given way to more evidence-based evaluation. Our objective here is to continue this approach by presenting our six-year experience with navigation. We will not discuss the theoretical background of these technologies nor attempt to present an exhaustive review of the literature but rather focus attention on surgical skills acquired by a group of surgeons working in a wide range of areas. The common point is that all have now integrated computer-assisted navigation into their routine surgical practices including: a) first-intention and revision knee arthroplasty; b) hip arthroplasty; c) anterior cruciate ligament surgery; d) proximal tibial osteotomy; e) shoulder arthroplasty. We will terminate this round table with a presentation of future technological advances and propose our advice for an increasingly widespread use of these new techniques.
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Affiliation(s)
- E Stindel
- CHU de Brest, Service d'Orthopédie,Traumatologie et Chirurgie Réparatrice, Hôpital de la Cavale blanche, boulevard Tanguy-Prigent, 29609 Brest Cedex
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Moineau G, Le Cour Grandmaison F, Lefèvre C, Dubrana F. [Periprosthetic fractures around total hip and knee arthroplasty. Periprosthetic fractures: errors to avoid]. Rev Chir Orthop Reparatrice Appar Mot 2006; 92:2S83-2S87. [PMID: 17802662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Affiliation(s)
- G Moineau
- Service de Chirurgie Orthopédique et Traumatologique, CHU de la Cavale-Blanche, rue Tanguy-Prigent, 29200 Brest
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Brunet P, Moineau G, Liot M, Burgaud A, Dubrana F, Le Nen D. Étude radioclinique de l'instabilité du moignon proximal de l'ulna après l'intervention de Sauvé-Kapandji pour séquelles post-traumatiques. ACTA ACUST UNITED AC 2004; 23:178-83. [PMID: 15484677 DOI: 10.1016/j.main.2004.05.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The aim of the study was to analyse the ulnar proximal stump's behaviour after Sauvé-Kapandji procedure. The procedure was performed for post-traumatic disorders of the distal radio-ulnar joint. This is a retrospective study of 14 patients. The mean age of patients at the operation was 49 years. Most of them began immediate mobilisation into pronation and supination. After a 5 year follow-up period, the clinical examination was centred on the ulnar proximal stump. An original radiologic study was made with static and dynamic X-Ray. Seven patients indicated pain on the ulnar stump during pronosupination. A clunk on the ulnar side of the wrist was noticed by three patients and an instability of the ulnar stump was observed two times. Clinically, there were a sagittal instability in all patients and a frontal instability four times. The sagittal instability was confirmed by dynamic X-Ray on each occasion, but the frontal instability was never confirmed. Every patient had instability of the ulnar stump; however, it was well tolerated. In practice, 12 patients were satisfied or very satisfied (86%). Instability of the proximal ulnar stump remains a problem, because it occurs despite a strict technique.
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Affiliation(s)
- P Brunet
- Service d'orthopédie, traumatologie et urgences main, hôpital de la Cavale-Blanche, CHU de Brest, boulevard Tanguy-Prigent, 29609 Brest , France.
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McKinnon A, Moineau G, Gaboury I, Grant V, Pitters C. 76 Unscheduled Return Visits for Gastroenteritis to a Pediatric Emergency Department. Paediatr Child Health 2004. [DOI: 10.1093/pch/9.suppl_a.42aa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Tong JD, Moineau G, Leclère P, Brédas, Lazzaroni R, Jérôme R. Synthesis, Morphology, and Mechanical Properties of Poly(methyl methacrylate)-b-poly(n-butyl acrylate)-b-poly(methyl methacrylate) Triblocks. Ligated Anionic Polymerization vs Atom Transfer Radical Polymerization. Macromolecules 1999. [DOI: 10.1021/ma990886v] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. D. Tong
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, B-4000 Liège, Belgium, and Service de Chimie des Matériaux Nouveaux, Centre de Recherche en Electronique et Photonique Moléculaires, Université de Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium
| | - G. Moineau
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, B-4000 Liège, Belgium, and Service de Chimie des Matériaux Nouveaux, Centre de Recherche en Electronique et Photonique Moléculaires, Université de Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium
| | - Ph. Leclère
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, B-4000 Liège, Belgium, and Service de Chimie des Matériaux Nouveaux, Centre de Recherche en Electronique et Photonique Moléculaires, Université de Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium
| | - Brédas
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, B-4000 Liège, Belgium, and Service de Chimie des Matériaux Nouveaux, Centre de Recherche en Electronique et Photonique Moléculaires, Université de Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium
| | - R. Lazzaroni
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, B-4000 Liège, Belgium, and Service de Chimie des Matériaux Nouveaux, Centre de Recherche en Electronique et Photonique Moléculaires, Université de Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium
| | - R. Jérôme
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, B-4000 Liège, Belgium, and Service de Chimie des Matériaux Nouveaux, Centre de Recherche en Electronique et Photonique Moléculaires, Université de Mons-Hainaut, Place du Parc 20, B-7000 Mons, Belgium
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Moineau G, Minet M, Dubois P, Teyssié P, Senninger T, Jérôme R. Controlled Radical Polymerization of (Meth)acrylates by ATRP with NiBr2(PPh3)2 as Catalyst. Macromolecules 1998. [DOI: 10.1021/ma980995u] [Citation(s) in RCA: 159] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- G. Moineau
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium, and Service Polymères de Grande Diffusion et Catalyse, Groupement de Recherches de Lacq, R.N. 117, B.P. 34, 64170 Lacq, France
| | - M. Minet
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium, and Service Polymères de Grande Diffusion et Catalyse, Groupement de Recherches de Lacq, R.N. 117, B.P. 34, 64170 Lacq, France
| | - Ph. Dubois
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium, and Service Polymères de Grande Diffusion et Catalyse, Groupement de Recherches de Lacq, R.N. 117, B.P. 34, 64170 Lacq, France
| | - Ph. Teyssié
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium, and Service Polymères de Grande Diffusion et Catalyse, Groupement de Recherches de Lacq, R.N. 117, B.P. 34, 64170 Lacq, France
| | - T. Senninger
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium, and Service Polymères de Grande Diffusion et Catalyse, Groupement de Recherches de Lacq, R.N. 117, B.P. 34, 64170 Lacq, France
| | - R. Jérôme
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium, and Service Polymères de Grande Diffusion et Catalyse, Groupement de Recherches de Lacq, R.N. 117, B.P. 34, 64170 Lacq, France
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Hawker CJ, Hedrick JL, Malmström EE, Trollsås M, Mecerreyes D, Moineau G, Dubois P, Jérôme R. Dual Living Free Radical and Ring Opening Polymerizations from a Double-Headed Initiator. Macromolecules 1998. [DOI: 10.1021/ma971335c] [Citation(s) in RCA: 185] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Craig J. Hawker
- Center for Polymeric Interfaces and Macromolecular Assemblies, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099, and Center for Education and Research on Macromolecules (CERM), University of Liege, Sart-Tilman, B6, 4000 Liege, Belgium
| | - James L. Hedrick
- Center for Polymeric Interfaces and Macromolecular Assemblies, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099, and Center for Education and Research on Macromolecules (CERM), University of Liege, Sart-Tilman, B6, 4000 Liege, Belgium
| | - Eva E. Malmström
- Center for Polymeric Interfaces and Macromolecular Assemblies, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099, and Center for Education and Research on Macromolecules (CERM), University of Liege, Sart-Tilman, B6, 4000 Liege, Belgium
| | - Mikael Trollsås
- Center for Polymeric Interfaces and Macromolecular Assemblies, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099, and Center for Education and Research on Macromolecules (CERM), University of Liege, Sart-Tilman, B6, 4000 Liege, Belgium
| | - D. Mecerreyes
- Center for Polymeric Interfaces and Macromolecular Assemblies, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099, and Center for Education and Research on Macromolecules (CERM), University of Liege, Sart-Tilman, B6, 4000 Liege, Belgium
| | - G. Moineau
- Center for Polymeric Interfaces and Macromolecular Assemblies, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099, and Center for Education and Research on Macromolecules (CERM), University of Liege, Sart-Tilman, B6, 4000 Liege, Belgium
| | - Ph. Dubois
- Center for Polymeric Interfaces and Macromolecular Assemblies, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099, and Center for Education and Research on Macromolecules (CERM), University of Liege, Sart-Tilman, B6, 4000 Liege, Belgium
| | - R. Jérôme
- Center for Polymeric Interfaces and Macromolecular Assemblies, IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099, and Center for Education and Research on Macromolecules (CERM), University of Liege, Sart-Tilman, B6, 4000 Liege, Belgium
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Moineau G, Dubois P, Jérôme R, Senninger T, Teyssié P. Alternative Atom Transfer Radical Polymerization for MMA Using FeCl3 and AIBN in the Presence of Triphenylphosphine: An Easy Way to Well-Controlled PMMA. Macromolecules 1998. [DOI: 10.1021/ma971132o] [Citation(s) in RCA: 169] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- G. Moineau
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium, and Service Polymères de Grande Diffusion et Catalyse, Groupement de Recherches de Lacq, R.N. 117, B.P. 34, 64170 Lacq, France
| | - Ph. Dubois
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium, and Service Polymères de Grande Diffusion et Catalyse, Groupement de Recherches de Lacq, R.N. 117, B.P. 34, 64170 Lacq, France
| | - R. Jérôme
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium, and Service Polymères de Grande Diffusion et Catalyse, Groupement de Recherches de Lacq, R.N. 117, B.P. 34, 64170 Lacq, France
| | - T. Senninger
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium, and Service Polymères de Grande Diffusion et Catalyse, Groupement de Recherches de Lacq, R.N. 117, B.P. 34, 64170 Lacq, France
| | - Ph. Teyssié
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium, and Service Polymères de Grande Diffusion et Catalyse, Groupement de Recherches de Lacq, R.N. 117, B.P. 34, 64170 Lacq, France
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21
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Moineau G, Granel C, Dubois P, Jérôme R, Teyssié P. Controlled Radical Polymerization of Methyl Methacrylate Initiated by an Alkyl Halide in the Presence of the Wilkinson Catalyst. Macromolecules 1998. [DOI: 10.1021/ma971123f] [Citation(s) in RCA: 156] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- G. Moineau
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium
| | - C. Granel
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium
| | - Ph. Dubois
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium
| | - R. Jérôme
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium
| | - Ph. Teyssié
- Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman, B6, 4000 Liège, Belgium
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22
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Abstract
Children suffering from mild to moderate (3 to 6%) dehydration likely caused by viral gastroenteritis are often hospitalized because they are unable to tolerate oral fluids. We studied 17 such children, aged one to six years, who were otherwise healthy. All had isonatremic dehydration and were treated with 30 ml/kg of 3.3% dextrose and 0.3% saline over a period of three hours in the emergency department before being discharged. No patient required admission to the hospital. Only one patient required another course of rapid intravenous rehydration and subsequently improved without hospitalization. Although all our patients experienced vomiting before treatment, 65% had no vomiting after treatment. Rapid intravenous rehydration is an effective treatment, for children with mild to moderate dehydration secondary to presumed viral gastroenteritis, that obviates the need for hospitalization.
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Affiliation(s)
- G Moineau
- Division of Emergency Services, Hospital for Sick Children, Toronto, Ontario, Canada
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