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Lai KKL, Lee TTY, Lau HHT, Chu WCW, Cheng JCY, Castelein RM, Schlösser TPC, Lam TP, Zheng YP. Monitoring of Curve Progression in Patients with Adolescent Idiopathic Scoliosis Using 3-D Ultrasound. Ultrasound Med Biol 2024; 50:384-393. [PMID: 38114347 DOI: 10.1016/j.ultrasmedbio.2023.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 11/08/2023] [Accepted: 11/28/2023] [Indexed: 12/21/2023]
Abstract
OBJECTIVE The aim of the work described here was to determine whether 3-D ultrasound can provide results comparable to those of conventional X-ray examination in assessing curve progression in patients with adolescent idiopathic scoliosis (AIS). METHODS One hundred thirty-six participants with AIS (42 males and 94 females; age range: 10-18 y, mean age: 14.1 ± 1.9 y) with scoliosis of different severity (Cobb angle range: 10º- 85º, mean: of 24.3 ± 14.4º) were included. Each participant underwent biplanar low-dose X-ray EOS and 3-D ultrasound system scanning with the same posture on the same date. Participants underwent the second assessment at routine clinical follow-up. Manual measurements of scoliotic curvature on ultrasound coronal projection images and posterior-anterior radiographs were expressed as the ultrasound curve angle (UCA) and radiographic Cobb angle (RCA), respectively. RCA and UCA increments ≥5º represented a scoliosis progression detected by X-ray assessment and 3-D ultrasound assessment, respectively. RESULTS The sensitivity and specificity of UCA measurement in detecting scoliosis progression were 0.93 and 0.90, respectively. The negative likelihood ratio of the diagnostic test for scoliosis progression by the 3-D ultrasound imaging system was 0.08. CONCLUSION The 3-D ultrasound imaging method is a valid technique for detecting coronal curve progression as compared with conventional radiography in follow-up of AIS. Substituting conventional radiography with 3-D ultrasound is effective in reducing the radiation dose to which AIS patients are exposed during their follow-up examinations.
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Affiliation(s)
- Kelly Ka-Lee Lai
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Timothy Tin-Yan Lee
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong; Research Institute for Smart Ageing, The Hong Kong Polytechnic University, Hong Kong
| | - Heidi Hin-Ting Lau
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Winnie Chiu-Wing Chu
- Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jack Chun-Yiu Cheng
- SH Ho Scoliosis Research Lab, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - René Marten Castelein
- Department of Orthopaedic Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Tom P C Schlösser
- Department of Orthopaedic Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Tsz-Ping Lam
- SH Ho Scoliosis Research Lab, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yong-Ping Zheng
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong; Research Institute for Smart Ageing, The Hong Kong Polytechnic University, Hong Kong.
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Rutges JPHJ, Renkens JJM, Kempen DHR, Faber C, Stadhouder A, Kruyt MC, Mostert A, Horsting PP, de Klerk LWL, de Kleuver M, Castelein RM, Schlösser TPC. The risk of delayed spinal cord injury in pediatric spinal deformity surgery. Spine Deform 2022; 11:617-625. [PMID: 36459389 DOI: 10.1007/s43390-022-00626-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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] [Received: 07/04/2022] [Accepted: 11/14/2022] [Indexed: 12/04/2022]
Abstract
Delayed spinal cord injury (SCI) hours or days after surgery, with uneventful monitoring and initial normal postoperative neurological examination, is a rare complication. Based on anecdotal evidence, the risk of delayed spinal cord injury might be higher than previously assumed. Therefore the aim of this study was to determine the risk of delayed SCI after pediatric spinal deformity surgery between 2013-2019 in the Netherlands. The total number of pediatric spinal deformity surgeries performed for scoliosis or kyphosis between 2013-2019 was obtained from the Dutch National Registration of Hospital Care. All eleven Dutch hospitals that perform pediatric spinal deformity surgery were contacted for occurrence of delayed SCI. From the identified patients with delayed SCI, the following data were collected: patient characteristics, details about the SCI, the surgical procedure, management and degree of improvement.2884 pediatric deformity surgeries were identified between 2013-2019. Seven patients (0.24%) with delayed SCI were reported: 3 idiopathic, 2 neuromuscular (including 1 kypho-scoliosis) and 2 syndromic scoliosis. The risk of delayed SCI after pediatric deformity surgery was 1:595 in idiopathic scoliosis, 1:214 in syndromic scoliosis, 1:201 in neuromuscular scoliosis. All seven patients had a documented normal neurological examination in the first postoperative period; neurological deficits were first diagnosed at a median 16h (range 2.5-40) after surgery. The risk of delayed SCI after pediatric deformity surgery is higher than previously reported, especially in patients with non-idiopathic scoliosis. Regular postoperative testing for late neurologic deficit should be performed for timely diagnosis and management of this devastating complication.
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Affiliation(s)
- J P H J Rutges
- Department of Orthopedics and Sports Medicine, Erasmus MC, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
| | - J J M Renkens
- Department of Orthopedics and Sports Medicine, Erasmus MC, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - D H R Kempen
- Department of Orthopedics, Onze Lieve Vrouwe Gasthuis OLVG, Amsterdam, The Netherlands
| | - C Faber
- Department of Orthopedics, UMC Groningen, Groningen, The Netherlands
| | - A Stadhouder
- Department of Orthopedics, Amsterdam UMC, Amsterdam, The Netherlands
| | - M C Kruyt
- Department of Orthopedics, UMC Utrecht, Utrecht, The Netherlands
| | - A Mostert
- Department of Orthopedics, Isala Zwolle, Zwolle, The Netherlands
| | - P P Horsting
- Department of Orthopedics, Sint Maartenskliniek, Nijmegen, The Netherlands
| | - L W L de Klerk
- Department of Orthopedics, Sint Maartenskliniek, Nijmegen, The Netherlands
| | - M de Kleuver
- Department of Orthopedics, Radboud UMC, Nijmegen, The Netherlands
| | - R M Castelein
- Department of Orthopedics, UMC Utrecht, Utrecht, The Netherlands
| | - T P C Schlösser
- Department of Orthopedics, UMC Utrecht, Utrecht, The Netherlands
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Tromp IN, Brink RC, Homans JF, Schlösser TPC, van Stralen M, Kruyt MC, Chu WCW, Cheng JCY, Castelein RM. CT analysis of the posterior anatomical landmarks of the scoliotic spine. Clin Radiol 2022; 77:876-881. [PMID: 36064659 DOI: 10.1016/j.crad.2022.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 07/24/2022] [Accepted: 07/25/2022] [Indexed: 11/27/2022]
Abstract
AIM To use computed tomography (CT) to assess the validity and reliability of the posterior landmarks, spinous processes (SP), transverse processes (TP), and centre of lamina (COL), as compared to the Cobb angle to assess the curve severity and progression of adolescent idiopathic scoliosis (AIS). MATERIALS AND METHODS A consecutive series of CT examinations of severe AIS patients were included retrospectively. SP, TP, and COL angles were measured for all curves and compared to the Cobb angle. RESULTS One hundred and five patients were included. The mean Cobb versus SP, TP, and COL angles were, 54° versus 37°, 49°, and 51° in the thoracic curves and 34° versus 26°, 31°, and 34° in the (thoraco)lumbar curves. Intraclass correlation coefficient values for intra-rater measurements of the SP, TP, and COL angles were 0.93, 0.97, and 0.95 and 0.70, 0.90, and 0.88 for inter-rater measurements. The correlations between the Cobb angle and SP, TP, and COL angles in thoracic and (thoraco)lumbar curves were 0.79 and 0.66, 0.87 and 0.84, and 0.80 and 0.70. CONCLUSIONS The posterior spinal landmarks can be used for assessment of scoliosis severity in AIS; however, they show a systematic underestimation, but a strong correlation with the coronal Cobb angle. TP and COL angles had the highest validity.
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Affiliation(s)
- I N Tromp
- Department of Orthopaedic Surgery, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - R C Brink
- Department of Orthopaedic Surgery, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - J F Homans
- Department of Orthopaedic Surgery, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - T P C Schlösser
- Department of Orthopaedic Surgery, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - M van Stralen
- Imaging Division, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - M C Kruyt
- Department of Orthopaedic Surgery, University Medical Centre Utrecht, Utrecht, the Netherlands.
| | - W C W Chu
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - J C Y Cheng
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - R M Castelein
- Department of Orthopaedic Surgery, University Medical Centre Utrecht, Utrecht, the Netherlands
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van der Gronde BATD, Schlösser TPC, van Erp JHJ, Snijders TE, Castelein RM, Weinans H, de Gast A. Current Evidence for Spinopelvic Characteristics Influencing Total Hip Arthroplasty Dislocation Risk. JBJS Rev 2022; 10:01874474-202208000-00004. [PMID: 36000764 DOI: 10.2106/jbjs.rvw.22.00038] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND Decreased pelvic mobility and pelvic retroversion may result from spinal degeneration and lead to changes in the orientation of the acetabular implant after total hip arthroplasty (THA). While multiple patient and surgery-related factors contribute to THA dislocations, there is increasing evidence that sagittal spinopelvic dynamics are relevant for THA stability. The aim of this systematic review was to assess the relationship between previously described sagittal spinopelvic characteristics and implant dislocations after primary THA. METHODS A comprehensive literature search in the PubMed and Embase databases was conducted for studies reporting on spinopelvic morphology, alignment, pathology, or surgery and THA dislocations. Risk of bias was assessed using the MINORS criteria. Because of high heterogeneity in study methodology, a synthesis of best evidence was performed. Odds ratios (ORs), relative risks (RRs), and effect sizes (g) were calculated. RESULTS Fifteen studies (1,007,900 THAs) with quality scores of 15 to 23 out of 24 were included. Nine different spinopelvic alignment parameters (8 studies, g = 0.14 to 2.02), spinal pathology (2 studies, OR = 1.9 to 29.2), and previous spinal fusion surgery (8 studies, OR = 1.59 to 23.7, RR = 3.0) were found to be related to THA dislocation. Conflicting results were found for another sagittal pelvic morphology parameter, pelvic incidence. CONCLUSIONS Several sagittal spinopelvic patient characteristics were found to be related to THA dislocation, and the associated risks were greater than for other patient and surgery-related factors. Future research is needed to determine which of those characteristics and parameters should be taken into account in patients undergoing primary THA. LEVEL OF EVIDENCE Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- B A T D van der Gronde
- Clinical Orthopedic Research Center midden Nederland, Department of Orthopedic Surgery, Diakonessenhuis Hospital, Zeist, the Netherlands
| | - T P C Schlösser
- Department of Orthopedic Surgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - J H J van Erp
- Clinical Orthopedic Research Center midden Nederland, Department of Orthopedic Surgery, Diakonessenhuis Hospital, Zeist, the Netherlands.,Department of Orthopedic Surgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - T E Snijders
- Clinical Orthopedic Research Center midden Nederland, Department of Orthopedic Surgery, Diakonessenhuis Hospital, Zeist, the Netherlands
| | - R M Castelein
- Department of Orthopedic Surgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - H Weinans
- Department of Orthopedic Surgery, University Medical Center Utrecht, Utrecht, the Netherlands.,Department of Biomechanical Engineering, Technical University Delft, Delft, the Netherlands
| | - A de Gast
- Clinical Orthopedic Research Center midden Nederland, Department of Orthopedic Surgery, Diakonessenhuis Hospital, Zeist, the Netherlands
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Yang D, Lee TTY, Lai KKL, Lam TP, Chu WCW, Castelein RM, Cheng JCY, Zheng YP. Semi-automatic ultrasound curve angle measurement for adolescent idiopathic scoliosis. Spine Deform 2022; 10:351-359. [PMID: 34734360 DOI: 10.1007/s43390-021-00421-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 09/29/2021] [Indexed: 01/30/2023]
Abstract
PURPOSE Using X-ray to evaluate adolescent idiopathic scoliosis (AIS) conditions is the clinical gold standard, with potential radiation hazards. 3D ultrasound has demonstrated its validity and reliability of estimating X-ray Cobb angle (XCA) using spinous process angle (SPA), which can be automatically measured. While angle measurement with ultrasound using spine transverse process-related landmarks (UCA) shows better agreed with XCA, its automatic measurement is challenging and not available yet. This research aimed to analyze and measure scoliotic angles through a novel semi-automatic UCA method. METHODS 100 AIS subjects (age: 15.0 ± 1.9 years, gender: 19 M and 81 F, Cobb: 25.5 ± 9.6°) underwent both 3D ultrasound and X-ray scanning on the same day. Scoliotic angles with XCA and UCA methods were measured manually; and transverse process-related features were identified/drawn for the semi-automatic UCA method. The semi-automatic method measured the spinal curvature with pairs of thoracic transverse processes and lumbar lumps in respective regions. RESULTS The new semi-automatic UCA method showed excellent correlations with manual XCA (R2 = 0.815: thoracic angles R2 = 0.857, lumbar angles R2 = 0.787); and excellent correlations with manual UCA (R2 = 0.866: thoracic angles R2 = 0.921, lumbar angles R2 = 0.780). The Bland-Altman plot also showed a good agreement against manual UCA/XCA. The MADs of semi-automatic UCA against XCA were less than 5°, which is clinically insignificant. CONCLUSION The semi-automatic UCA method had demonstrated the possibilities of estimating manual XCA and UCA. Further advancement in image processing to detect the vertebral landmarks in ultrasound images could help building a fully automated measurement method. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- De Yang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Timothy Tin-Yan Lee
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Kelly Ka-Lee Lai
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Tsz-Ping Lam
- SH Ho Scoliosis Research Lab, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Winnie Chiu-Wing Chu
- Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Hong Kong, China
| | - René Marten Castelein
- Department of Orthopaedic Surgery, University Medical Center Utrecht, Utrecht, Netherlands
| | - Jack Chun-Yiu Cheng
- SH Ho Scoliosis Research Lab, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Yong-Ping Zheng
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
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Lee TTY, Lai KKL, Cheng JCY, Castelein RM, Lam TP, Zheng YP. Investigation of the Phenomenon of Coronal-Sagittal Curvature Coupling on Curve Progression: An Exploratory Study using 3-D Ultrasound. Ultrasound Med Biol 2021; 47:2202-2212. [PMID: 33980396 DOI: 10.1016/j.ultrasmedbio.2021.03.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 03/26/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
A 3-D ultrasound system was determined to provide reliable and valid results for scoliosis assessment in the coronal and sagittal planes. The objective of this study was to investigate whether 3-D ultrasound can detect coronal-sagittal coupling and to study its potential effect on curve progression in patients with adolescence idiopathic scoliosis (AIS) as per the traditional Cobb angle classification. Radiographic and ultrasonic coronal and sagittal curvatures of 126 patients with AIS were evaluated. Thoracic kyphosis (TK) and lumbar lordosis (LL) with different coronal deformity were compared correspondingly based on either main thoracic or (thoraco)lumbar curve groups. The TK and LL of patients with single curves were also compared with study the curve effect on sagittal curvatures. A prospective cohort of 51 patients were followed for an average of 23 months for preliminary progression investigation. TKs in patients with larger main thoracic Cobb angles was significantly smaller than those with smaller main thoracic Cobb angles, judging by the results obtained from ultrasound and X-ray. The TKs of patients with only single right main thoracic curves were significantly smaller than those of patients with only single left (thoraco)lumbar curves. In addition, patients with progressive curves were observed to be relative hypokyphotic during early visits.
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Affiliation(s)
- Timothy Tin-Yan Lee
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Kelly Ka-Lee Lai
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Jack Chun-Yiu Cheng
- SH Ho Research Lab, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong
| | - René Marten Castelein
- Department of Orthopaedic Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Tsz-Ping Lam
- SH Ho Research Lab, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong
| | - Yong-Ping Zheng
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong.
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Lee TTY, Lai KKL, Cheng JCY, Castelein RM, Lam TP, Zheng YP. 3D ultrasound imaging provides reliable angle measurement with validity comparable to X-ray in patients with adolescent idiopathic scoliosis. J Orthop Translat 2021; 29:51-59. [PMID: 34094858 PMCID: PMC8144340 DOI: 10.1016/j.jot.2021.04.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND & OBJECTIVE The application of ultrasound imaging for spine evaluation could minimize radiation exposure for patients with adolescence idiopathic scoliosis (AIS). A customized three-dimensional (3D) ultrasound imaging system has been demonstrated to provide reliable and valid coronal curvature measurements. However, these measurements were using the spinous processes as anatomical reference, leading to a predictable underestimation of the traditionally used Cobb angles. An alternative 3D ultrasound image reconstruction method was applied to create coronal images with more lateral features for angle measurement. The objective of this study was to test the reliability and the validity of this angle, the ultrasound curve angle (UCA), and compare the UCA with the Cobb angles on X-ray images of patients with AIS. MATERIALS AND METHODS This study was divided into: 1) Investigation of intra- and inter-reliability between two raters for measuring the UCA and two operators for acquiring ultrasound images; 2) Investigation of the validity between the radiographic Cobb angle and the UCA. Fifty patients and 164 patients with AIS, were included in the two stages, respectively. Patients underwent bi-planar X-ray and 3D ultrasound scanning on the same day. The proposed UCA was used to measure the coronal curvature from the ultrasound coronal images, which were formed using a newly customized volume projection imaging (VPI) method. The intra-rater/operator and inter-rater and operator reliability of the UCA were tested by intra-class correlation coefficient (ICC) (3,1) and (2,1), respectively. The validity of UCA measurements as compared to radiographic Cobb angles was tested by inter-method ICC (2,1), mean absolute difference (MAD), standard error of measurement (SEM), Pearson correlation coefficient and Bland-Altman statistics. The level of significance was set as 0.05. RESULTS Excellent intra-rater and intra-operator (ICC (3,1)≥0.973) and excellent inter-rater and inter-operator reliability (ICC (2,1)≥0.925) for UCA measurement, with overall MAD and SEM no more than 3.5° and 1.7° were demonstrated for both main thoracic and (thoraco)lumbar curvatures. Very good correlations were observed between UCA and Cobb angle for main thoracic (R 2 =0.893) and (thoraco)lumbar (R 2 =0.884) curves. The mean (SD) measurements in terms of radiographic Cobb and UCA were 27.2 ± 11.6° and 26.3 ± 11.4° for main thoracic curves; and 26.2 ± 11.4° and 24.8 ± 9.7° for (thoraco)lumbar curve respectively. One hundred sixty-four subjects (33 male and 131 female subjects; 11-18 years of age, mean of 15.1 ± 1.9 years) were included for the validity session. Excellent inter-method variations (ICC (2,K) ≥0.933) with overall MAD and SEM no more than 3.0° and 1.5° were demonstrated for both main thoracic and (thoraco)lumbar curvatures. In addition, Bland-Altman plots demonstrated an acceptable agreement between ultrasound and radiographic Cobb measurements. CONCLUSION In this study, very good correlations and agreement were demonstrated between the ultrasound and X-ray measurements of the scoliotic curvature. Judging from the promising results of this study, patients with AIS with different severity of curves can be evaluated and monitored by ultrasound imaging, reducing the usage of radiation during follow-ups. This method could also be used for scoliosis screening.The Translational potential of this article: Ultrasound curve angle (UCA) obtained from 3D ultrasound imaging system can provide reliable and valid evaluation on coronal curvature for patients with AIS, without the need of radiation.
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Affiliation(s)
- Timothy Tin-Yan Lee
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Kelly Ka-Lee Lai
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Jack Chun-Yiu Cheng
- SH Ho Scoliosis Research Lab, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong
| | - René Marten Castelein
- Department of Orthopaedic Surgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Tsz-Ping Lam
- SH Ho Scoliosis Research Lab, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong
| | - Yong-Ping Zheng
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong
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Pollet V, Castelein RM, van de Sande M, Witbreuk M, Mostert AK, Besselaar A, van Bergen C, Beek E, Uiterwaal CSPM, Sakkers RJB. Abduction treatment in stable hip dysplasia does not alter the acetabular growth: results of a randomized clinical trial. Sci Rep 2020; 10:9647. [PMID: 32541874 PMCID: PMC7296030 DOI: 10.1038/s41598-020-66634-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 05/22/2020] [Indexed: 11/09/2022] Open
Abstract
Background The effect of bracing over natural history of stable dysplastic hips is not well known. This multicenter randomized trial aimed at objectifying the effect of abduction treatment versus active surveillance in infants of 3 to 4 months of age. Methods Patients were randomized to either Pavlik harness or active surveillance group. Ultrasound was repeated at 6 and 12 weeks post randomization. The primary outcome was the degree of dysplasia using the Graf α-angle at 6 months of age. The measurement of the acetabular index (AI) on plain pelvis X-rays was used to identify persistent dysplasia after 9 months and walking age (after 18 months). Findings The Pavlik harness group (n = 55) and active surveillance group (n = 49) were comparable for predictors of outcome. At 12 weeks follow-up the mean α-angle was 60.5° ± 3.8° in the Pavlik harness group and 60.0° ± 5.6° in the active surveillance group. (p = 0.30). Analysis of secondary outcomes (standard of care) showed no treatment differences for acetabular index at age 10 months (p = 0.82) and walking age (p = 0.35). Interpretation Pavlik harness treatment of stable but sonographic dysplastic hips has no effect on acetabular development. Eighty percent of the patients will have a normal development of the hip after twelve weeks. Therefore, we recommend observation rather than treatment for stable dysplastic hips.
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Affiliation(s)
- V Pollet
- Royal Manchester Children's hospital, Department of Pediatric Orthopedics and Traumatology, Manchester, United Kingdom.
| | - R M Castelein
- University Medical Center Utrecht, Department of Orthopedics, Utrecht, The Netherlands
| | - M van de Sande
- Leiden University Medical Center, Leiden, The Netherlands
| | - M Witbreuk
- Amsterdam Medical University Center, Amsterdam, The Netherlands
| | | | - A Besselaar
- Maxima Medical Center, Eindhoven, The Netherlands
| | - C van Bergen
- University Medical Center Utrecht, Department of Orthopedics, Utrecht, The Netherlands
| | - E Beek
- University Medical Center Utrecht, Department of Radiology, Utrecht, The Netherlands
| | - C S P M Uiterwaal
- University Medical Center Utrecht, Julius Center for Health Sciences and Primary Care, Utrecht, The Netherlands
| | - R J B Sakkers
- University Medical Center Utrecht, Department of Orthopedics, Utrecht, The Netherlands
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Rutges JPHJ, Duit RA, Kummer JA, Bekkers JEJ, Oner FC, Castelein RM, Dhert WJA, Creemers LB. A validated new histological classification for intervertebral disc degeneration. Osteoarthritis Cartilage 2013; 21:2039-47. [PMID: 24120397 DOI: 10.1016/j.joca.2013.10.001] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 08/20/2013] [Accepted: 10/01/2013] [Indexed: 02/02/2023]
Abstract
UNLABELLED Histology is an important outcome variable in basic science and pre-clinical studies regarding intervertebral disc degeneration (IVD). Nevertheless, an adequately validated histological classification for IVD degeneration is still lacking and the existing classifications are difficult to use for inexperienced observers. OBJECTIVE Therefore the aim of this study was to develop and to validate a new histological classification for IVD degeneration. Moreover, the new classification was compared to the frequently used non-validated classification. METHODS The new classification was applied to human IVD sections. The sections were scored twice by two independent inexperienced observers, twice by two experienced IVD researchers and once by a pathologist. For comparison, the sections were also scored according to the classification described by Boos et al. by two experienced IVD researchers. Macroscopic grading according Thompson et al., glycosaminoglycan (GAG) content and age were used for validation. RESULTS The new classification had an excellent intra- and a good inter-observer reliability. Intraclass Correlation Coefficients (ICC) were 0.83 and 0.74, respectively. Intra- and inter-observer reliability were comparable for experienced and inexperienced observers. Statistically significant correlations were found between the new classification, macroscopic score, GAG content in the nucleus pulposus (NP) and age; Correlation coefficient (CC) 0.79, -0.62 and 0.68, respectively. The CCs of the Boos classification were all lower compared to the new classification. CONCLUSION the new histological classification for IVD degeneration is a valid instrument for evaluating IVD degeneration in human IVD sections and is suitable for inexperienced and experienced researchers.
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Affiliation(s)
- J P H J Rutges
- Dept. of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands.
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10
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Horstmann WG, Swierstra MJ, Ohanis D, Castelein RM, Kollen BJ, Verheyen CCPM. Reduction of blood loss with the use of a new combined intra-operative and post-operative autologous blood transfusion system compared with no drainage in primary total hip replacement. Bone Joint J 2013; 95-B:616-22. [PMID: 23632670 DOI: 10.1302/0301-620x.95b5.30472] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [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] [Indexed: 11/05/2022]
Abstract
Autologous retransfusion and no-drainage are both blood-saving measures in total hip replacement (THR). A new combined intra- and post-operative autotransfusion filter system has been developed especially for primary THR, and we conducted a randomised controlled blinded study comparing this with no-drainage. A total of 204 THR patients were randomised to autologous blood transfusion (ABT) (n = 102) or no-drainage (n = 102). In the ABT group, a mean of 488 ml (sd 252) of blood was retransfused. The mean lowest post-operative haemoglobin level during the hospital stay was higher in the autotransfusion group (10.6 g/dl (7.8 to 13.9) vs 10.2 g/dl (7.5 to 13.3); p = 0.01). The mean haemoglobin levels for the ABT and no-drainage groups were not significantly different on the first day (11.3 g/dl (7.8 to 13.9) vs 11.0 g/dl (8.1 to 13.4); p = 0.07), the second day (11.1 g/dl (8.2 to 13.8) vs 10.8 g/dl (7.5 to 13.3); p = 0.09) or the third day (10.8 g/dl (8.0 to 13.0) vs 10.6 g/dl (7.5 to 14.1); p = 0.15). The mean total peri-operative net blood loss was 1464 ml (sd 505) in the ABT group and 1654 ml (sd 553) in the no-drainage group (p = 0.01). Homologous blood transfusions were needed in four patients (3.9%) in the ABT group and nine (8.8%) in the no-drainage group (p = 0.15). No statistically significant difference in adverse events was found between the groups. The use of a new intra- and post-operative autologous blood transfusion filter system results in less total blood loss and a smaller maximum decrease in haemoglobin levels than no-drainage following primary THR.
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11
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Rutgers M, Bartels LW, Tsuchida AI, Castelein RM, Dhert WJ, Vincken KL, van Heerwaarden RJ, Saris DBF. dGEMRIC as a tool for measuring changes in cartilage quality following high tibial osteotomy: a feasibility study. Osteoarthritis Cartilage 2012; 20:1134-41. [PMID: 22796509 DOI: 10.1016/j.joca.2012.07.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Revised: 06/19/2012] [Accepted: 07/03/2012] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The high tibial osteotomy (HTO) is an effective strategy for treatment of painful medial compartment knee osteoarthritis. Effects on cartilage quality are largely unknown. Delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC) enables non-invasive assessment of cartilage glycosaminoglycan content. This study aimed to evaluate if dGEMRIC could detect relevant changes in cartilage glycosaminoglycan content following HTO. DESIGN Ten patients with medial compartment osteoarthritis underwent a dGEMRIC scan prior to HTO, and after bone healing and subsequent hardware removal. A dGEMRIC index (T1Gd) was used for changes in cartilage glycosaminoglycan content, a high T1Gd indicating a high glycosaminoglycan content and vice versa. Radiographic analysis included mechanical axis and tibial slope measurement. clinical scores [knee osteoarthritis outcome scale (KOOS), visual analogue score (VAS) for pain, Knee Society clinical rating system (KSCRS)] before, 3 and 6 months after HTO and after hardware removal were correlated to T1Gd changes. RESULTS Overall a trend towards a decreased T1Gd, despite HTO, was observed. Before and after HTO, lateral femoral condyle T1Gd was higher than medial femoral condyle (MFC) T1Gd and tibial cartilage T1Gd was higher than that of femoral cartilage (P < 0.001). The MFC had the lowest T1Gd before and after HTO. Clinical scores all improved significantly (P < 0.01), KOOS Symptoms and QOL were moderately related to changes in MFC T1Gd. CONCLUSIONS dGEMRIC effectively detected differences in cartilage quality within knee compartments before and after HTO, but no changes due to HTO were detected. Hardware removal post-HTO seems essential for adequate T(1)Gd interpretation. T(1)Gd was correlated to improved clinical scores on a subscore level only. Longer follow-up after HTO may reveal lasting changes. ClinicalTrials.gov registration ID: NCT01269944.
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Affiliation(s)
- M Rutgers
- Orthopaedics Department, University Medical Center Utrecht, The Netherlands.
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12
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Abstract
Congenital insensitivity to pain is a rare condition with an abnormality of interpretation of painful stimuli. This case report illustrates how a sequence of injuries after no or trivial trauma incapacitated a young boy. Especially the bilateral collapse and dislocation of the hip is an unusual sequela of this disorder.
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Affiliation(s)
- C C Verheyen
- Department of Orthopaedic Surgery and Traumatology, Isala Clinics (de Weezenlanden Hospital), 10500, Zwolle, Zwolle, The Netherlands,
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13
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Rutges JPHJ, Duit RA, Kummer JA, Oner FC, van Rijen MH, Verbout AJ, Castelein RM, Dhert WJA, Creemers LB. Hypertrophic differentiation and calcification during intervertebral disc degeneration. Osteoarthritis Cartilage 2010; 18:1487-95. [PMID: 20723612 DOI: 10.1016/j.joca.2010.08.006] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [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: 05/09/2010] [Revised: 08/01/2010] [Accepted: 08/10/2010] [Indexed: 02/02/2023]
Abstract
BACKGROUND In degenerative intervertebral discs (IVDs) collagen type X expression and calcifications have been demonstrated, resembling advanced osteoarthritis (OA), which is associated with hypertrophic differentiation, characterized by the production of collagen type X, Runt-related transcription factor 2 (Runx2), osteoprotegerin (OPG), alkaline phosphatase (ALP) and calcifications. OBJECTIVE The aim of this study was to determine if hypertrophic differentiation occurs during IVD degeneration. METHODS IVDs from all Thompson degeneration grades were prepared for histology, extraction of nucleus pulposus (NP) and annulus fibrosis (AF) tissue (N=50) and micro-CT (N=27). The presence of collagen type X, OPG and Runx2 was determined by immunohistochemistry, with OPG levels also determined by Enzyme-linked immunosorbent assay (ELISA). The presence of calcification was determined by micro-CT, von Kossa and Alizarin Red staining. RESULTS Immunohistochemical staining for collagen type X, OPG, Runx2 appeared more intense in the NP of degenerative compared to healthy IVD samples. OPG levels correlated significantly with degeneration grade (NP: P<0.000; AF: P=0.002) and the number of microscopic calcifications (NP: P=0.002; AF: P=0.008). The extent of calcifications on micro-CT also correlated with degeneration grade (NP: P<0.001, AF: P=0.001) as did von Kossa staining (NP: P=0.015, AF: P=0.016). ALP staining was only incidentally seen in the transition zone of grades IV and V degenerated IVDs. CONCLUSION This study for the first time demonstrates that hypertrophic differentiation occurs during IVD degeneration, as shown by an increase in OPG levels, the presence of ALP activity, increased immunopositivity of Runx2 and collagen type X.
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Affiliation(s)
- J P H J Rutges
- Department of Orthopaedics, University Medical Center Utrecht, The Netherlands.
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14
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Bosker BH, Ettema HB, Verheyen CCPM, Castelein RM. Acetabular augmentation ring for recurrent dislocation of total hip arthroplasty: 60% stability rate after an average follow-up of 74 months. Int Orthop 2007; 33:49-52. [PMID: 17952437 DOI: 10.1007/s00264-007-0456-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2007] [Revised: 07/27/2007] [Accepted: 07/28/2007] [Indexed: 11/24/2022]
Abstract
Between 1988 and 2002, 47 patients (50 hips) were treated with acetabular shell augmentation arthroplasty for recurrent idiopathic dislocation of their total hip arthroplasty. Apparent causes for dislocation such as deep infection, component malposition, or polyethylene wear were excluded. Follow-up averaged 74 months (range, 12-178 months), and clinically, 30 hips (60%) did not present a subsequent dislocation at most recent follow-up. In five hips (10%), deep infection after the augmentation procedure necessitated removal of the entire prosthesis. In our opinion, this technique cannot be recommended as it has an unacceptable failure and high infection rate.
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Affiliation(s)
- B H Bosker
- Department of Orthopedic Surgery, Isala Clinics, De Weezenlanden Hospital, Grootwezenland 20, 8011 JW , Zwolle, The Netherlands
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15
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van Ommeren PM, Castelein RM, Leenen LPH. [Traumatic dislocation of the hip in a 3-year-old boy with a painful knee]. Ned Tijdschr Geneeskd 2006; 150:2320-3. [PMID: 17089551] [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: 05/12/2023]
Abstract
A 3-year-old boy had pain on the medial side of his left knee after his father fell on him. When the pain still persisted 4 days later, further diagnostics revealed dislocation of the hip. The pain disappeared and function was restored after closed reposition under fluoroscopic control followed by immobilisation with a plaster cast. Traumatic dislocation of the hip in childhood is a relatively rare injury, but may have far-reaching consequences. As the sensitivity to pain in children differs from that in adults, an examiner must be on the alert for a traumatic dislocation of the hip whenever a child presents with a fitting history and dysfunction ofthe leg, regardless of the localisation of the pain. Pain in the knee is often reported in case of hip disorders. Avascular necrosis of the caput femoris is a well-known and dreaded complication of traumatic dislocation of the hip in children. The risk of complications is certainly increased sharply if the hip luxation goes unnoticed and reposition takes place after more than 6 hours. Closed reposition as rapidly as possible or alternatively open reposition of the dislocated hip under general anaesthesia is the indicated treatment.
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16
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Spruit M, Falk RG, Beckmann L, Steffen T, Castelein RM. The in vitro stabilising effect of polyetheretherketone cages versus a titanium cage of similar design for anterior lumbar interbody fusion. Eur Spine J 2005; 14:752-8. [PMID: 16133078 PMCID: PMC3489261 DOI: 10.1007/s00586-005-0961-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2004] [Revised: 02/23/2005] [Accepted: 04/26/2005] [Indexed: 11/29/2022]
Abstract
UNLABELLED This biomechanical study was performed to test the primary segmental in vitro stabilising effect of a standard and large footprint radiolucent poly-ether-ether-ketone (PEEK) box cage versus a titanium box cage for anterior lumbar interbody fusion. Eighteen L2-L3 and sixteen L4-L5 cadaveric motion segments were divided into three groups and received a titanium cage or a radiolucent PEEK cage with standard or large footprint. All specimens were tested in three testing conditions: intact, stand-alone anterior cage and finally with supplemental translaminar screw fixation. Full range of motion and neutral zone measurements were determined and anterior cage pull out force was tested. The titanium design was significantly more effective in reducing the range of motion only in axial rotation. The larger footprint radiolucent cage did not increase stability as compared to the standard footprint. The titanium cage pull out force was significantly (P=0.0002) higher compared to both radiolucent cage constructs. CLINICAL RELEVANCE Supplemental posterior fixation is strongly recommended to increase initial stability of any anterior interbody fusion cage construct. Although the biomechanical stability necessary to achieve spinal fusion is not defined, the radiolucent designs tested in this study, with a standard footprint as well as with a larger footprint, may be insufficiently stabilised with translaminar screws as compared to the titanium implant. Supplemental pedicle screw fixation may be required to obtain adequate stabilisation in the clinical setting.
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Affiliation(s)
- M Spruit
- Institute for Spine Surgery and Applied Research, PO Box 9011, 6500, Nijmegen, The Netherlands.
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17
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Roovers EA, Boere-Boonekamp MM, Castelein RM, Zielhuis GA, Kerkhoff TH. Effectiveness of ultrasound screening for developmental dysplasia of the hip. Arch Dis Child Fetal Neonatal Ed 2005; 90:F25-30. [PMID: 15613568 PMCID: PMC1721830 DOI: 10.1136/adc.2003.029496] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To determine the effectiveness of ultrasound screening for developmental dysplasia of the hip (DDH) after the neonatal period. DESIGN Prospective cohort study. SETTING Child health care centres. PARTICIPANTS Infants attending the child health care centres. INTERVENTIONS The intervention group (n = 5170) was screened by ultrasound at 1, 2, and 3 months of age. The control group (n = 2066) was screened by routine physical examination as part of the programme for child health surveillance at the child health care centres (CHC screening). For evaluation of the screening, the children in both the intervention and control group received an ultrasound examination after 6 months of age to detect any abnormality that might have been missed by the screening. RESULTS The sensitivity of the ultrasound screening was 88.5%, and the referral rate 7.6%. As a result of the ultrasound screening, 4.6% of the children were treated. The sensitivity of the CHC screening was 76.4%, with a referral rate of 19.2%. The treatment rate was 2.7%. Of the treated children in the ultrasound screening group, 67% were referred before the age of 13 weeks, whereas in the CHC screening group only 29% were referred before this age. CONCLUSIONS This study shows that ultrasound screening detects more children with DDH than CHC screening and that more of them are detected at an earlier age. To accomplish this, even fewer children have to be referred. However, even general ultrasound screening seems not to eradicate late cases of DDH. The higher treatment rate in the population screened by ultrasound may be a result of overtreatment.
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Affiliation(s)
- E A Roovers
- University of Twente, PO Box 217, Enschede 7500 AE, the Netherlands
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18
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Schipper IB, Steyerberg EW, Castelein RM, van der Heijden FHWM, den Hoed PT, Kerver AJH, van Vugt AB. Treatment of unstable trochanteric fractures. Randomised comparison of the gamma nail and the proximal femoral nail. J Bone Joint Surg Br 2004; 86:86-94. [PMID: 14765872] [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: 04/28/2023]
Abstract
The proximal femoral nail (PFN) is a recently introduced intramedullary system, designed to improve treatment of unstable trochanteric fractures of the hip. In a multicentre prospective clinical study, the intra-operative use, complications and outcome of treatment using the PFN (n = 211) were compared with those using the gamma nail (GN) (n = 213). The intra-operative blood loss was lower with the PFN (220 ml v 287 ml, p = 0.001). Post-operatively, more lateral protrusion of the hip screws of the PFN (7.6%) was documented, compared with the gamma nail (1.6%, p = 0.02). Most local complications were related to suboptimal reduction of the fracture and/or positioning of the implant. Functional outcome and consolidation were equal for both implants. Generally, the results of treatment of unstable trochanteric fractures were comparable for the PFN and GN. The pitfalls and complications were similar, and mainly surgeon- or fracture-related, rather than implant-related.
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Affiliation(s)
- I B Schipper
- Department of Traumatology, University Hospital of Rotterdam, Erasmus Medical Center, Dr Molewaterplein 40, 3015 GD Rotterdam, The Netherlands
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19
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Jutte PC, Castelein RM. Complications of pedicle screws in lumbar and lumbosacral fusions in 105 consecutive primary operations. Eur Spine J 2002; 11:594-8. [PMID: 12522719 DOI: 10.1007/s00586-002-0469-8] [Citation(s) in RCA: 220] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2001] [Revised: 06/04/2002] [Accepted: 06/07/2002] [Indexed: 01/08/2023]
Abstract
Pedicle screw fixation is technically demanding and associated with high complication rates. The aim of this study was to identify and quantify the pedicle screw-related complications in 105 consecutive operations. We retrospectively analysed 105 consecutive primary operations. We found complications of varying severity in 54% of the patients. Deep infections were found in 4.7%, all successfully cured by debridement and antibiotics. There were no permanent neurological complications related to the screws. One serious neurological sequela, a T10 paraplegia, was unrelated to screw placement between L3 and S1. Screw misplacement was found in 6.5% of the screws. Screw breakage occurred in 12.4% of the patients, inevitably leading to loss of correction. Reduced spondylolisthesis L5-S1 without anterior support was found to be especially prone to screw breakage. The study confirmed that pedicle screw placement is a technically demanding procedure with a high complication rate. Fortunately, most complications are not severe. Infections can be dealt with by thorough debridement and parenteral antibiotics. Neurological sequelae can be minimised by careful tactile technique. To avoid screw breakage and subsequent loss of correction, anterior support should be provided, through either posterior or anterior lumbar interbody fusion (PLIF or ALIF) techniques, in reduced spondylolisthesis L5-S1.
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Affiliation(s)
- P C Jutte
- Department of Orthopaedic Surgery, Isala Klinieken, locatie Weezenlanden, Zwolle, The Netherlands.
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20
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Castelein RM. [Physical diagnosis--Ortolani's manoeuvre]. Ned Tijdschr Geneeskd 2002; 146:1077-80. [PMID: 12085556] [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: 02/25/2023]
Abstract
Ortolani's manoeuvre is used to detect hip instability. It is intended to be used to establish the mobility of a dislocated femoral head with respect to the acetabulum in newly-born infants. Barlow's modification attempts to dislocate a reduced but unstable hip out of the acetabulum. Ortolani's manoeuvre is a primarily tactile, proprioceptive sensation and has nothing to do with the usually inconsequential audible and palpable clicks in infant hips. It has been found that widespread use of Ortolani's manoeuvre cannot prevent all late diagnoses of hip dysplasia. This is because neonatal hip instability is only part of the total spectrum of hip dysplasia, and because the examination requires a relaxed newly-born infant and an experienced examiner. In the Dutch situation, general screening with Ortolani's manoeuvre is not advisable as this will lead to many false-positive and false-negative outcomes due to this neonatal examination being carried out by various physicians and midwives with insufficient experience. Better results may be expected from ultrasound screening at child welfare clinics. This is presently being investigated in a large population study.
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21
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van den Brand IC, Castelein RM. Total joint arthroplasty and incidence of postoperative bacteriuria with an indwelling catheter or intermittent catheterization with one-dose antibiotic prophylaxis: a prospective randomized trial. J Arthroplasty 2001; 16:850-5. [PMID: 11607900 DOI: 10.1054/arth.2001.25547] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
This study examined the difference in postoperative bacteriuria in total joint arthroplasty after use of either an indwelling catheter or intermittent catheterization. Previous studies showed a preference for an indwelling catheter over intermittent catheterization to resolve postoperative urinary retention in total joint arthroplasty, but these studies generally used 48 hours of antibiotic prophylaxis. Increasing awareness of costs and bacterial resistance to antibiotics have prompted many centers to reduce prophylaxis to only 1 preoperative dose A prospective, randomized, controlled trial was conducted in primary total hip and primary total knee arthroplasty patients. One dose of cefazolin, 1 g, was administered intravenously immediately preoperatively. Five of 13 (38%) men in the indwelling catheter group and 0 of 14 (0%) men in the intermittent catheterization group developed postoperative bacteriuria (P =.016), and 6 of 33 (18%) women in the indwelling catheter group and 3 of 39 (8%) women in the intermittent catheterization group developed postoperative bacteriuria (not significant). A total of 11 (24%) patients in the indwelling catheter group (n = 46) and 3 (6%) patients in the intermittent catheterization group (n = 53) developed postoperative bacteriuria (P =.018). In this setting with 1-dose antibiotic prophylaxis, intermittent catheterization resulted in a lower incidence of postoperative bacteriuria compared with an indwelling catheter. For men, this difference is significant.
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Affiliation(s)
- I C van den Brand
- Department of Orthopaedic Surgery, Isala Clinics, Weezenlanden, Zwolle, The Netherlands
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22
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Castelein RM, Korte J. Limited hip abduction in the infant. J Pediatr Orthop 2001; 21:668-70. [PMID: 11521039] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
This article addresses two important questions: What is the relationship between limited abduction and hip dysplasia in infants? Does untreated limited abduction in the infant ultimately lead to developmental dysplasia of the hip? In the authors' population of 683 babies, limitation of abduction had a sensitivity for the diagnosis of hip dysplasia of 69%, a specificity of 54%, a positive predictive value of 43%, and a negative predictive value of 78%. In the group with sonographically proven hip dysplasia, 70 of 226 babies (31%) showed no limitation of abduction, and in the group without dysplasia 210 of 457 (46%) showed manifest limitation of abduction. One hundred thirty-six babies with limited abduction but a normal sonographic examination were left untreated. They were re-examined at an average age of 5+3 years (range 2+0-9+5). All had developed normally, both clinically and radiographically.
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Affiliation(s)
- R M Castelein
- Department of Orthopaedic Surgery and Traumatology, Isala Clinics, De Weezenlanden Hospital, Zwolle, The Netherlands.
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23
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Bressers MM, Castelein RM. Anterolateral tibial bowing and duplication of the hallux: a rare but distinct entity with good prognosis. J Pediatr Orthop B 2001; 10:153-7. [PMID: 11360782] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Congenital anterolateral bowing of the lower leg usually is a symptom of (impending) fracture because of congenital pseudarthrosis. This article reports a case of anterolateral bowing of the lower leg that is characterized by spontaneous correction and combination with duplication of the hallux. A review of the literature showed 10 comparable cases. This article is the first report on the magnetic imaging of this entity and describes its differentiation from congenital pseudarthrosis.
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Affiliation(s)
- M M Bressers
- Afdeling orthopedie, Isla Klinieken, locatie Weezenlanden, Groot Wezenland 20, 8011 JW Zwolle, The Netherlands
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Schipper IB, Steyerberg EW, Castelein RM, van Vugt AB. Reliability of the AO/ASIF classification for pertrochanteric femoral fractures. Acta Orthop Scand 2001; 72:36-41. [PMID: 11327411 DOI: 10.1080/000164701753606662] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
20 radiographs of pertrochanteric femoral fractures were classified as to fracture "group" and "sub-group" according to the AO/ASIF Fracture Classification (type 31A) by 15 observers. 3 months later, the same radiographs were reviewed by the same observers. Mean agreement of the observers with the final consensus ranged from 53% (with subgroup classification) to 81% (without subgroup). The mean kappa value for interobserver reliability was 0.33 and 0.34 for classification with subgroup in both observer sessions, respectively. Omission of the subgroup classification resulted in better mean kappa values (0.67 and 0.63, respectively). Mean intraobserver reliability was 0.48 in the fracture "subgroup" and 0.78 in the "group" classification. In conclusion, the results show that the AO/ASIF classification for pertrochanteric fractures is reliable for fracture subgroups 31A1, A2 or A3. The group classification should be used to compare scientific data and determine the best treatment. Further classification of fracture subgroups leads to poor reproducibility of results.
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Affiliation(s)
- I B Schipper
- Isala Clinics, Weezenlanden Hospital, Department of General Surgery, Zwolle, The Netherlands.
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25
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Abstract
In this prospective study, 41 dislocated hips in 40 patients were classified according to Graf's sonographic classification. Of them, 29 hips were Graf type III and 12 hips Graf type IV. All were treated in a Pavlik harness to relocate the dislocated hip dynamically. In type III hips, this was successful in 97% and 50% in type IV hips. We conclude that Graf's classification in dislocated hips has prognostic significance in treatment with the Pavlik harness.
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Affiliation(s)
- A K Mostert
- Department of Orthopaedic Surgery, The Isala Clinics, Zwolle, The Netherlands
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Castelein RM, Doorn PF. [Echography in the diagnosis of dysplastic hip development]. Ned Tijdschr Geneeskd 1996; 140:1804-8. [PMID: 8927141] [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: 02/03/2023]
Affiliation(s)
- R M Castelein
- Ziekenhuis De Weezenlanden, afd. Orthopedische Chirurgie, Zwolle
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Abstract
One hundred one clinically normal newborn hips showed varying degrees of sonographic hip dysplasia according to the classification of Graf. None were treated, and after +/- 6 months, radiographs showed that only four had definite dysplasia. Of these, three had had risk factors such as breech delivery or familial predisposition. Forty-three other clinically normal newborn hips showed ultrasonic instability, which spontaneously corrected. The severity of ultrasound dysplasia at birth was not related to ultimate development of the hip. Our results indicate that ultrasound should not be performed as a general screening procedure in clinically normal newborns.
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Affiliation(s)
- R M Castelein
- Department of Orthopaedics, De Weezenlanden Hospital, Zwolle, The Netherlands
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Castelein RM, Sauter AJ. [Echography of the hip in children]. Tijdschr Kindergeneeskd 1988; 56:231-6. [PMID: 3070829] [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: 01/04/2023]
Abstract
Ultrasonography has emerged in recent literature as a reliable technique to visualise the infant hip. Its advantages are that non-osseous structures can be seen as well as bone, that a dynamic investigation can be performed, and that it lacks ionising radiation. This article describes the results of a screening study in 307 newborns. 13.4% of all clinically normal (stable) hips showed ultrasound abnormalities. 96.3% of these normalised spontaneously, however. Apparently the natural history of ultrasound abnormalities at birth is relatively mild. Furthermore, in a group of older children, Graf's alpha angle was related to the acetabular index on the radiograph. There was no linear relationship, but a tendency was noted to find higher (better) alpha angles together with lower (better) acetabular indices. Possibly ultrasound is superior to standard radiography in depicting subtle disturbances in ossification of the lateral edge of the acetabulum.
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Abstract
Three hundred seven newborns were examined clinically and by ultrasound for congenital dysplasia of the hip (CDH). The purpose of the study was to determine the prevalence of sonographic abnormalities and to discover if sonography could be helpful in detecting cases of CDH that would be missed by clinical diagnosis alone. Eighty-two hips (13.4%) had ultrasound abnormalities despite a normal clinical examination. Of these, three developed definite hip dysplasia. The remaining 79 hips became clinically and sonographically normal within 12 weeks. Ultrasound visualized and recorded the dislocation-reposition maneuver of three other hips that were clinically dislocatable at birth. Dislocation occurred in a craniodorsal direction.
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Affiliation(s)
- R M Castelein
- Department of Orthopaedics, Leyenburg Municipal Hospital of the Hague, The Netherlands
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Castelein RM, Fiévez AW, Tissink J. [A simple surgical method for the treatment of chronic ankle instability]. Ned Tijdschr Geneeskd 1986; 130:494-7. [PMID: 3960156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Abstract
A hernia developed in the region of the inferior lumbar triangle of Petit 1.5 years after a full thickness bone graft had been taken from the part of the iliac crest that forms the base of the triangle.
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Castelein RM, MacEwen GD. A dumbbell (hourglass) neurofibroma of the spine in a patient with von Recklinghausen's disease. A case report with twelve-year follow-up. Arch Orthop Trauma Surg (1978) 1984; 102:216-20. [PMID: 6424625 DOI: 10.1007/bf00436132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A five-and-one-half-year-old boy, referred for orthopaedic evaluation of spinal curvature, was diagnosed as having neurofibromatosis (von Recklinghausen's disease) with a 44-degree right thoracolumbar curve from T-10 to L-3. A soft-tissue mass was identified in the area of T-7 to T-12 and, when neurological signs developed, the mass was removed by extraperitoneal laparothoracotomy. Tumor root was noted to extend into the spinal canal, and subsequent surgery was undertaken to remove this tissue. There was no postoperative increase in the neurologic deficit, although the scoliosis progressed to the point where spinal fusion was required. This was followed by brace treatment to maintain correction during the growth years. Long-term follow-up (12 years) revealed that the patient's spine was balanced, the fusion mass appeared to be solid radiographically, and the neurological examination was normal.
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