ObjectivesThe purpose of this paper was to analyse the 15-year trend of women in leadership roles within the Canadian Orthopaedic Association (COA). This included not only leadership positions at the committee level in the association but also the more visible podium positions in the annual meeting programme: research podium and poster presentations, session moderators, panellists and faculty.MethodsData on the numbers of male and female members were gathered from COA membership records for the most recent 5 years (2014–2018), as well as for 10 years previous (2009) and 15 years previous (2004). Male and female representation on COA committees, as well as the number of presenters at the annual meeting was calculated. Descriptive data were generated to compare the changes in gender representation over time.ResultsIn Canada, in 2018, 11.2% of orthopaedic surgeons were female. Within the COA, 17.6% of the members are female, with active female surgeons comprising 11.6% of the total membership. The largest increase in representation of women within the COA is in the trainee category which is 25.3% female. At the 2018 annual meeting, 25% of the attendees were women, with 22% of all podium appearances by women. Not including research presentations, women participated as faculty in 11% of the appearances at the 2018 annual meeting.ConclusionIn conclusion, gender parity is not yet a reality in Canadian orthopaedics; however, the number of females in leadership roles and on the podium is consistent with the current gender diversity within the COA membership. Further efforts will be required to improve gender diversity as well as to encourage female medical students to consider orthopaedics as a specialty. The availability of female role models that are visible on the podium and in leadership positions may be one strategy to encourage the journey toward gender parity.

Background: Although there are several predominantly single-center case series in the literature, relatively little prospectively collected data exist regarding the outcomes of open hip reduction (OR) for infantile developmental dysplasia of the hip (DDH). The purpose of this prospective, multi-center study was to determine the outcomes after OR in a diverse patient population. Methods: The prospectively collected database of an international multicenter study group was queried for all patients treated with OR for DDH. Minimum follow-up was 1 year. Proximal femoral growth disturbance (PFGD) was defined by consensus review using Salter’s criteria. Persistent acetabular dysplasia was defined as an acetabular index >90th percentile for age. Statistical analyses were performed to compare preoperative and operative characteristics that predicted re-dislocation, PFGD, and residual acetabular dysplasia. Results: A cohort of 232 hips (195 patients) was identified; median age at OR was 19 months (interquartile range 13 to 28) and median follow-up length was 21 months (interquartile range 16 to 32). Re-dislocation occurred in 7% of hips (n=16/228). The majority (81%; n=13/16) occurred in the first year after initial OR. Excluding patients with repeat dislocation, 94.5% of hips were IHDI 1 at most recent follow-up. On the basis of strict radiographic review, some degree of PFGD was present in 44% of hips (n=101/230) at most recent follow-up. Seventy-eight hips (55%) demonstrated residual dysplasia compared with established normative data. Hips that had a pelvic osteotomy at index surgery had about half the rate of residual dysplasia (39%; n=32/82) versus those without a pelvic osteotomy with at least 2 years follow-up (78%; n=46/59). Conclusions: In the largest prospective, multicenter study to date, OR for infantile DDH was associated with a 7% risk of re-dislocation, 44% risk of PFGD, and 55% risk of residual acetabular dysplasia at short term follow-up. The incidence of these adverse outcomes is higher than previous reports. Patients treated with concomitant pelvic osteotomy had lower rates of residual dysplasia. These prospectively collected, multicenter data provide better generalizable information to improve family education and appropriately set expectations. Level of Evidence: Level II, prospective comparative study.

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Background: The outcomes of Pavlik Harness (PH) management for Developmental Dysplasia of the Hip (DDH) are equivalent regardless of the initiation timing, if it is within the first 6 weeks of life. A PH may be a physical barrier to breastfeeding, which is important for nutrition, immunity, and normal child development. The diagnosis of DDH and early management with a PH may also negatively affect the maternal psychosocial wellbeing and the infant-maternal relationship. The purpose of this study is to investigate the impact of the diagnosis of DDH and the management with a PH has on maternal wellbeing and maintenance of breastfeeding, compared with being screened for but not diagnosed with DDH. Methods: A retrospective cohort of the mothers of infants who were diagnosed with DDH and treated with a PH brace was compared with the mothers of infants who were screened for DDH only. The Hip Worries Inventory and Edinburgh Postnatal Depression Scale were completed by the mothers in both groups. The PH group also completed an in-house questionnaire specific to PH and breastfeeding. Results: Eighty completed surveys were included, 50 from the treatment group. The mean age of the PH initiation was 6.2 weeks. The modified Hip Worries Inventory score was higher in the treatment group, with a mean difference (MD) of 9.7 out of 50 (95% confidence interval, CI, 6.8, 12.5). The MD of the Edinburgh Postnatal Depression Scale was 2.0 out of 30 (CI −0.5, 4.5). Although there was no difference in the breastfeeding ease before and after the PH initiation (MD−0.2, CI−0.7, 0.2), 83% of mothers found breastfeeding more difficult with a PH and 11% of mothers stopped breastfeeding earlier than planned because of the PH. Conclusions: Mothers of infants with DDH worry more about their child's hips and the PH. Screening alone may contribute to maternal psychological dejection and negative thoughts. The presence of a PH makes breastfeeding more difficult. Level of Evidence: Retrospective comparative study, level III.

Background: Measurement of migration percentage (MP) is fundamental to successful hip surveillance for children with cerebral palsy (CP). In British Columbia, Canada, children enrolled in the province’s hip surveillance program get radiographs at the province’s tertiary care pediatric hospital or their local community hospital. This study aimed to review the radiology reporting of images completed as part of hip surveillance. Methods: Pelvis radiographs completed between September 2015 and December 2019 of 960 children enrolled in the province’s hip surveillance program were included. MP values measured by the program coordinator and corresponding value measured by the facility’s radiologist, when present, were retrieved. Agreement in MP between the program coordinator and the radiologist was measured using Bland-Altman plots and intraclass correlation coefficients. Radiology reports for images completed at community facilities that prompted a referral to a pediatric orthopaedic surgeon, when reviewed by the hip surveillance team, were further reviewed for qualitative comments. Results: In total, 1849 radiographs were reviewed with 69.3% (1282) completed at the pediatric hospital and 30.7% (567) at 64 different hospitals or clinics. MP was reported for 20.6% (264/1282) of radiographs completed at the pediatric hospital and 3.0% (17/567) of the radiographs completed at community hospitals. Bland-Altman plot analyses found a MP mean difference of 1.2% (95% confidence interval=0.6%-1.8%) between the program coordinator and all radiologist reports with an intraclass correlation coefficient of 0.88 (95% confidence interval=0.86-0.90). There were 47 radiographs completed at community hospitals that resulted in a referral to a pediatric orthopaedic surgeon after review by the hip surveillance team. Eleven of these reports stated normal or unremarkable findings. Conclusions: Radiologic reporting of images completed for hip surveillance for children with CP was inadequate to allow for the detection of hip displacement. Reporting of MP was rare, particularly in community hospitals. If radiology reporting will be utilized for hip surveillance in children with CP, education of radiologists is required.

Purpose: This study explored whether surgeons favor unilateral or bilateral reconstructive hip surgery in children with cerebral palsy who have unilateral hip displacement. Methods: An invitation to participate in an anonymous, online survey was sent to 44 pediatric orthopedic surgeons. The case of an 8 year old at Gross Motor Function Classification System level IV with migration percentages of 76% and 22% was described. Surgeons selected their surgical treatment of choice and provided their rationale. Respondents were also asked to list and rank radiographic parameters used for decision-making and multidisciplinary team members involved in decision-making. Results: Twenty-eight orthopedic surgeons from nine countries with a mean 21.3 years (range, 5–40 years) of experience completed the survey. A “bilateral VDROs with a right pelvic osteotomy (PO) was selected by 68% (19/28) of respondents; risk of contralateral subluxation (9/19; 47%) and maintaining symmetry (7/19; 37%) were the most common rationales for bilateral surgery. The remaining 32% (9/28) chose a ‘right VDRO with a right PO’” with most of these (8/9; 89%) stating the left hip was sufficiently covered. Of 31 radiographic parameters identified, migration percentage, acetabular angle/index, Shenton line, neck shaft angle, and presence of open/closed triradiate growth plates were the most common. Physical therapists (68%) and physiatrists (43%) were most likely to be involved in pre-operative surgical consultation. Conclusion: There is a lack of agreement on management of the contralateral hip in children with unilateral hip displacement. Further studies comparing patient important outcomes following unilateral and bilateral surgery are required. Level of Evidence: V

Accurately detecting and diagnosing developmental dysplasia of the hip (DDH), a common hip instability condition among infants, requires ultrasound (US) image data that captures the relevant anatomical structures. Our group has recently introduced a technique for automatically processing 3D US scans of the neonatal hip that significantly reduces dysplasia metric measurement variability, but it can be challenging for a clinician to know at the time of acquisition if they have acquired a volume suitable for analysis. We have previously introduced a single-slice-based approach for assessing adequacy of acquired volumes that worked reasonably well, but we believe that more explicitly three-dimensional approaches would be more robust and reliable. Here, we propose a new technique based on a convolutional neural network (CNN) architecture that incorporates inter-slice information and transfer learning. Our classifier labels volumes as adequate or inadequate for subsequent interpretation based on detecting the presence of key hip anatomical structures needed for DDH diagnosis. We validate our approach on 40 datasets from 15 pediatric patients and demonstrate a slice classification rate of 93% (improving on our previous implementation by 3%) with average processing time of 2 seconds per US volume. We expect automatic US scan adequacy assessment to have significant clinical impact with the potential to help in imaging standardization, improving efficiency of measuring DDH metrics, and improving accuracy of clinical decision making.

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