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  1. Article: Treatment of centered developmental dysplasia of the hip under the age of 1 year: an evidence-based clinical practice guideline - Part 1.

    van Bergen, Christiaan J A / de Witte, Pieter Bas / Willeboordse, Floor / de Geest, Babette L / Foreman-van Drongelen, Magritha Margret M H P / Burger, Bart J / den Hartog, Yvon M / van Linge, Joost H / Pereboom, Renske M / Robben, Simon G F / Witlox, M Adhiambo / Witbreuk, Melinda M E H

    EFORT open reviews

    2022  Volume 7, Issue 7, Page(s) 498–505

    Abstract: Despite the high incidence of developmental dysplasia of the hip (DDH), treatment is very diverse. Therefore, the Dutch Orthopedic Society developed a clinical practice guideline with recommendations for optimal and uniform treatment of DDH. This article ...

    Abstract Despite the high incidence of developmental dysplasia of the hip (DDH), treatment is very diverse. Therefore, the Dutch Orthopedic Society developed a clinical practice guideline with recommendations for optimal and uniform treatment of DDH. This article summarizes the guideline on centered DDH (i.e. Graf types 2A-C). The guideline development followed the criteria of Appraisal of Guidelines for Research and Evaluation II. A systematic literature review was performed to identify randomized controlled trials and comparative cohort studies including children <1 year with centered DDH. Articles were included that compared (1) treatment with observation, (2) different abduction devices, (3) follow-up frequencies, and (4) discontinuation methods. Recommendations were based on Grading Recommendations Assessment, Development, and Evaluation, which included the literature, clinical experience and consensus, patient and parent comfort, and costs. Out of 430 potentially relevant articles, 5 comparative studies were included. Final guideline recommendations were (1) initially observe 3-month-old patients with centered DDH, start abduction treatment if the hip does not normalize after 6-12 weeks; (2) prescribe a Pavlik harness to children <6 months with persisting DDH on repeated ultrasonography, consider alternative abduction devices for children >6 months; (3) assess patients every 6 weeks; and (4) discontinue the abduction device when the hip has normalized or when the child is 12 months. This paper presents a summary of part 1 of the first evidence-based guideline for treatment of centered DDH in children <1 year. Part 2 presents the guideline on decentered DDH in a separate article.
    Language English
    Publishing date 2022-07-05
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2844421-8
    ISSN 2058-5241 ; 2058-5241 ; 2396-7544
    ISSN (online) 2058-5241
    ISSN 2058-5241 ; 2396-7544
    DOI 10.1530/EOR-21-0125
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: The less invasive anterior approach for total hip arthroplasty: a comparison to other approaches and an evaluation of the learning curve - a systematic review.

    den Hartog, Yvon M / Mathijssen, Nina M C / Vehmeijer, Stephan B W

    Hip international : the journal of clinical and experimental research on hip pathology and therapy

    2016  Volume 26, Issue 2, Page(s) 105–120

    Abstract: There is still discussion about possible advantages and disadvantages of the less invasive anterior approach for total hip arthroplasty (THA). The purpose of our systematic review was to evaluate literature regarding the anterior approach in comparison ... ...

    Abstract There is still discussion about possible advantages and disadvantages of the less invasive anterior approach for total hip arthroplasty (THA). The purpose of our systematic review was to evaluate literature regarding the anterior approach in comparison to other approaches. Furthermore, we investigated if there is a description of a learning curve for the anterior approach.Data were obtained from EMBASE, Cochrane, PsycINFO, CINAHL, Web-of-Science, Scopus, Google scholar, and PubMed since their inception up to June 2015. 2 reviewers independently selected the studies and independently conducted the quality assessment. Because studies were considered heterogeneous regarding outcome measures, determinants studied, and methodological quality, we decided to perform a "best evidence synthesis". A total of 64 studies met the inclusion criteria.Strong evidence for no difference in component placement between the anterior approach and other approaches was found. Also, strong evidence for faster postoperative recovery and less need for assistive devices after the anterior approach were found. All other studied parameters only demonstrated conflicting evidence. Although the learning curve for the anterior approach is not yet clear, this learning curve should not to be neglected.In conclusion, the less invasive anterior approach provides benefits in the early postoperative period only, when compared to other approaches.
    MeSH term(s) Arthroplasty, Replacement, Hip/education ; Arthroplasty, Replacement, Hip/methods ; Education, Medical, Graduate/methods ; Humans ; Learning Curve ; Minimally Invasive Surgical Procedures/education ; Minimally Invasive Surgical Procedures/methods ; Orthopedics/education ; Postoperative Complications/prevention & control
    Language English
    Publishing date 2016-03
    Publishing country Italy
    Document type Journal Article ; Review
    ZDB-ID 1162513-2
    ISSN 1724-6067 ; 1120-7000
    ISSN (online) 1724-6067
    ISSN 1120-7000
    DOI 10.5301/hipint.5000319
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Which patient-specific and surgical characteristics influence postoperative pain after THA in a fast-track setting?

    den Hartog, Yvon M / Hannink, Gerjon / van Dasselaar, Nick T / Mathijssen, Nina M / Vehmeijer, Stephan B

    BMC musculoskeletal disorders

    2017  Volume 18, Issue 1, Page(s) 363

    Abstract: Background: In our hospital a fast-track setting including a multimodal pain protocol is used for total hip arthroplasty (THA). Despite this multimodal pain protocol there is still a large range in reported postoperative pain between patients, which ... ...

    Abstract Background: In our hospital a fast-track setting including a multimodal pain protocol is used for total hip arthroplasty (THA). Despite this multimodal pain protocol there is still a large range in reported postoperative pain between patients, which hinders mobilization and rehabilitation postoperatively. The goal of this study was to identify which patient-specific and surgical characteristics influence postoperative pain after THA in a fast-track setting.
    Methods: All 74 patients with osteoarthritis of the hip who underwent primary THA procedure by anterior supine intermuscular approach between November 2012 and January 2014 were included in this prospective cohort study. The protocol for pain medication was standardized. Postoperative pain determined with the Numeric Rating Score was collected at 17 standardized moments. Linear mixed models were used to examine potential patient-specific and surgical factors associated with increased postoperative pain.
    Results: Pain patterns differed substantially across individuals. Adjusted for other variables in the model, preoperative use of pain medication (regression coefficient 0.78 (95% CI 0.28-1.26); p = 0.005) and preoperative neuropathic pain scored by DN4 (regression coefficient 0.68 (95% CI 0.15-1.20); p = 0.02) were the only factors significantly associated with higher postoperative pain scores.
    Conclusions: The knowledge of which factors are associated with higher postoperative pain scores after THA in a fast-track setting may help optimizing perioperative postoperative pain management and preoperative education of these patients.
    Trial registration: The study was retrospectively registered in the ISRCTN registry under identifier ISRCTN15422220 (date of registration: July 25, 2017).
    Language English
    Publishing date 2017-08-24
    Publishing country England
    Document type Journal Article
    ISSN 1471-2474
    ISSN (online) 1471-2474
    DOI 10.1186/s12891-017-1725-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Treatment of decentered developmental dysplasia of the hip under the age of 1 year: an evidence-based clinical practice guideline - Part 2.

    de Witte, Pieter Bas / van Bergen, Christiaan J A / de Geest, Babette L / Willeboordse, Floor / van Linge, Joost H / den Hartog, Yvon M / Margret M H P Foreman-van Drongelen, Magritha / Pereboom, Renske M / Robben, Simon G F / Burger, Bart J / Witlox, M Adhiambo / Witbreuk, Melinda M E H

    EFORT open reviews

    2022  Volume 7, Issue 8, Page(s) 542–553

    Abstract: Background and purpose: Diagnostics and treatment of developmental dysplasia of the hip (DDH) are highly variable in clinical practice. To obtain more uniform and evidence-based treatment pathways, we developed the 'Dutch guideline for DDH in children < ...

    Abstract Background and purpose: Diagnostics and treatment of developmental dysplasia of the hip (DDH) are highly variable in clinical practice. To obtain more uniform and evidence-based treatment pathways, we developed the 'Dutch guideline for DDH in children < 1 year'. This study describes recommendations for unstable and decentered hips.
    Materials and methods: The Appraisal of Guidelines for Research and Evaluation criteria (AGREE II) were applied. A systematic literature review was performed for six predefined guideline questions. Recommendations were developed, based on literature findings, as well as harms/benefits, patient/parent preferences, and costs (GRADE).
    Results: The systematic literature search resulted in 843 articles and 11 were included. Final guideline recommendations are (i) Pavlik harness is the preferred first step in the treatment of (sub) luxated hips; (ii) follow-up with ultrasound at 3-4 and 6-8 weeks; (iii) if no centered and stable hip after 6-8 weeks is present, closed reduction is indicated; (iv) if reduction is restricted by limited hip abduction, adductor tenotomy is indicated; (v) in case of open reduction, the anterior, anterolateral, or medial approach is advised, with the choice based on surgical preference and experience; (vi) after reduction (closed/open), a spica cast is advised for 12 weeks, followed by an abduction device in case of residual dysplasia.
    Interpretation: This study presents recommendations on the treatment of decentered DDH, based on the available literature and expert consensus, as Part 2 of the first official and national evidence-based 'Guideline for DDH in children < 1 year'. Part 1 describes the guideline sections on centered DDH in a separate article.
    Language English
    Publishing date 2022-08-04
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2844421-8
    ISSN 2058-5241 ; 2058-5241 ; 2396-7544
    ISSN (online) 2058-5241
    ISSN 2058-5241 ; 2396-7544
    DOI 10.1530/EOR-21-0126
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Total hip arthroplasty in an outpatient setting in 27 selected patients.

    Hartog, Yvon M den / Mathijssen, Nina M C / Vehmeijer, Stephan B W

    Acta orthopaedica

    2015  Volume 86, Issue 6, Page(s) 667–670

    Abstract: Background and purpose: As a result of introduction of a fast-track program, length of hospital stay after total hip arthroplasty (THA) decreased in our hospital. We therefore wondered whether THA in an outpatient setting would be feasible. We report ... ...

    Abstract Background and purpose: As a result of introduction of a fast-track program, length of hospital stay after total hip arthroplasty (THA) decreased in our hospital. We therefore wondered whether THA in an outpatient setting would be feasible. We report our experience with THA in an outpatient setting.
    Patients and methods: In this prospective cohort study, we included 27 patients who were selected to receive primary THA in an outpatient setting between April and July 2014. Different patient-reported outcome measures (PROMs) were recorded preoperatively and at 6 weeks and 3 months postoperatively. Furthermore, anchor questions on how patients functioned in daily living were scored at 6 weeks and 3 months postoperatively.
    Results: 3 of the 27 patients did not go home on the day of surgery because of nausea and/or dizziness. The remaining 24 patients all went home on the day of surgery. PROMs improved substantially in these patients. Moreover, anchor questions on how patients functioned in their daily living indicated that the patients were satisfied with the postoperative results. 1 re-admission occurred at 11 days after surgery because of seroma formation. There were no other complications or reoperations.
    Interpretation: At our hospital, with a fast-track protocol, outpatient THA was found to be feasible in selected patients with satisfying results up to 3 months postoperatively, without any outpatient procedure-specific complications or re-admissions.
    MeSH term(s) Aged ; Ambulatory Surgical Procedures/methods ; Ambulatory Surgical Procedures/statistics & numerical data ; Arthroplasty, Replacement, Hip/methods ; Female ; Humans ; Length of Stay ; Male ; Middle Aged ; Patient Satisfaction ; Prospective Studies
    Language English
    Publishing date 2015
    Publishing country England
    Document type Journal Article
    ZDB-ID 2180677-9
    ISSN 1745-3682 ; 1745-3674
    ISSN (online) 1745-3682
    ISSN 1745-3674
    DOI 10.3109/17453674.2015.1066211
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: The anterior supine intermuscular approach for total hip arthroplasty: reducing the complication rate by improving the procedure.

    den Hartog, Yvon M / Mathijssen, Nina M C / Peters, Sebastian J / Vehmeijer, Stephan B W

    Hip international : the journal of clinical and experimental research on hip pathology and therapy

    2015  Volume 25, Issue 1, Page(s) 28–33

    Abstract: This study describes specific complications noticed during the first unselected cases operated by anterior approach for THA in our hospital and specific adjustments that were applied on the procedure to prevent these complications. We retrospectively ... ...

    Abstract This study describes specific complications noticed during the first unselected cases operated by anterior approach for THA in our hospital and specific adjustments that were applied on the procedure to prevent these complications. We retrospectively analysed the differences between 202 patients who were operated by a standardised approach and 248 patients who were operated after adjustments were implemented with the procedure. Injury to the lateral femoral cutaneous nerve (LFCN), fractures of the greater trochanter and dislocation were specific complications that were noticed with the initial technique.Prevalence of injury to the LFCN decreased from 7.9% to 0.8% (p<0.001), fractures of the greater trochanter decreased from 5.4% to 0.8% (p = 0.004) and the incidence of dislocation decreased from 4.5% to 1.6% (p = 0.074).
    MeSH term(s) Aged ; Arthroplasty, Replacement, Hip/methods ; Female ; Follow-Up Studies ; Hip Prosthesis ; Humans ; Incidence ; Joint Capsule/surgery ; Male ; Muscle, Skeletal/surgery ; Netherlands/epidemiology ; Postoperative Complications/epidemiology ; Postoperative Complications/prevention & control ; Retrospective Studies ; Supine Position
    Language English
    Publishing date 2015-01
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 1162513-2
    ISSN 1724-6067 ; 1120-7000
    ISSN (online) 1724-6067
    ISSN 1120-7000
    DOI 10.5301/hipint.5000182
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Reduced length of hospital stay after the introduction of a rapid recovery protocol for primary THA procedures.

    den Hartog, Yvon M / Mathijssen, Nina M C / Vehmeijer, Stephan B W

    Acta orthopaedica

    2013  Volume 84, Issue 5, Page(s) 444–447

    Abstract: Background and purpose: Rapid recovery protocols after total hip arthroplasty (THA) have been introduced worldwide in the last few years and they have reduced the length of hospital stay. We show the results of the introduction of a rapid recovery ... ...

    Abstract Background and purpose: Rapid recovery protocols after total hip arthroplasty (THA) have been introduced worldwide in the last few years and they have reduced the length of hospital stay. We show the results of the introduction of a rapid recovery protocol for primary THA for unselected patients in our large teaching hospital.
    Patients and methods: In a retrospective cohort study, we included all 1,180 patients who underwent a primary THA between July 1, 2008 and June 30, 2012. These patients were divided into 3 groups: patients operated before, during, and after the introduction of the rapid recovery protocol. There were no exclusion criteria. All complications, re-admissions, and reoperations were registered and analyzed.
    Results: The mean length of hospital stay decreased from 4.6 to 2.9 nights after the introduction of the rapid recovery protocol. There were no statistically significant differences in the rate of complications, re-admissions, or reoperations between the 3 groups.
    Interpretation: In a large teaching hospital, the length of hospital stay decreased after introduction of our protocol for rapid recovery after THA in unselected patients, without any increase in complications, re-admissions, or reoperation rate.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Arthritis/surgery ; Arthroplasty, Replacement, Hip/rehabilitation ; Clinical Protocols ; Female ; Femoral Neck Fractures/surgery ; Humans ; Length of Stay/statistics & numerical data ; Male ; Middle Aged ; Osteonecrosis/surgery ; Patient Readmission/statistics & numerical data ; Reoperation/statistics & numerical data ; Retrospective Studies ; Young Adult
    Language English
    Publishing date 2013-09-16
    Publishing country England
    Document type Journal Article
    ZDB-ID 2180677-9
    ISSN 1745-3682 ; 1745-3674
    ISSN (online) 1745-3682
    ISSN 1745-3674
    DOI 10.3109/17453674.2013.838657
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Whole Exome Sequencing Is the Preferred Strategy to Identify the Genetic Defect in Patients With a Probable or Possible Mitochondrial Cause.

    Theunissen, Tom E J / Nguyen, Minh / Kamps, Rick / Hendrickx, Alexandra T / Sallevelt, Suzanne C E H / Gottschalk, Ralph W H / Calis, Chantal M / Stassen, Alphons P M / de Koning, Bart / Mulder-Den Hartog, Elvira N M / Schoonderwoerd, Kees / Fuchs, Sabine A / Hilhorst-Hofstee, Yvonne / de Visser, Marianne / Vanoevelen, Jo / Szklarczyk, Radek / Gerards, Mike / de Coo, Irenaeus F M / Hellebrekers, Debby M E I /
    Smeets, Hubert J M

    Frontiers in genetics

    2018  Volume 9, Page(s) 400

    Abstract: Mitochondrial disorders, characterized by clinical symptoms and/or OXPHOS deficiencies, are caused by pathogenic variants in mitochondrial genes. However, pathogenic variants in some of these genes can lead to clinical manifestations which overlap with ... ...

    Abstract Mitochondrial disorders, characterized by clinical symptoms and/or OXPHOS deficiencies, are caused by pathogenic variants in mitochondrial genes. However, pathogenic variants in some of these genes can lead to clinical manifestations which overlap with other neuromuscular diseases, which can be caused by pathogenic variants in non-mitochondrial genes as well. Mitochondrial pathogenic variants can be found in the mitochondrial DNA (mtDNA) or in any of the 1,500 nuclear genes with a mitochondrial function. We have performed a two-step next-generation sequencing approach in a cohort of 117 patients, mostly children, in whom a mitochondrial disease-cause could likely or possibly explain the phenotype. A total of 86 patients had a mitochondrial disorder, according to established clinical and biochemical criteria. The other 31 patients had neuromuscular symptoms, where in a minority a mitochondrial genetic cause is present, but a non-mitochondrial genetic cause is more likely. All patients were screened for pathogenic variants in the mtDNA and, if excluded, analyzed by whole exome sequencing (WES). Variants were filtered for being pathogenic and compatible with an autosomal or X-linked recessive mode of inheritance in families with multiple affected siblings and/or consanguineous parents. Non-consanguineous families with a single patient were additionally screened for autosomal and X-linked dominant mutations in a predefined gene-set. We identified causative pathogenic variants in the mtDNA in 20% of the patient-cohort, and in nuclear genes in 49%, implying an overall yield of 68%. We identified pathogenic variants in mitochondrial and non-mitochondrial genes in both groups with, obviously, a higher number of mitochondrial genes affected in mitochondrial disease patients. Furthermore, we show that 31% of the disease-causing genes in the mitochondrial patient group were not included in the MitoCarta database, and therefore would have been missed with MitoCarta based gene-panels. We conclude that WES is preferable to panel-based approaches for both groups of patients, as the mitochondrial gene-list is not complete and mitochondrial symptoms can be secondary. Also, clinically and genetically heterogeneous disorders would require sequential use of multiple different gene panels. We conclude that WES is a comprehensive and unbiased approach to establish a genetic diagnosis in these patients, able to resolve multi-genic disease-causes.
    Language English
    Publishing date 2018-10-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606823-0
    ISSN 1664-8021
    ISSN 1664-8021
    DOI 10.3389/fgene.2018.00400
    Database MEDical Literature Analysis and Retrieval System OnLINE

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