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BMC Musculoskelet Disord 2020 Jul 7;21(1):442. Epub 2020 Jul 7.

Department of Surgery, University of Toronto, Toronto, Canada.

Background: The development of developmental dysplasia of the hip can be attributed to several risk factors and often in combination with each other. When predicting the likelihood of developing this condition, clinicians tend to over and underestimate its likelihood of occurring. Therefore, the study aim is to determine among at-risk newborns how to best predict developmental dysplasia of the hip (DDH) within 8 weeks post-partum. Read More

J Orthop Sci 2020 Jun 24. Epub 2020 Jun 24.

Department of Othopaedic and Spine Surgery, Fukuoka Children's Hospital, 5-1-1 Kashii Teriha, Higashi-ku, Fukuoka 812-0017, Japan.

Background: Although acetabular dysplasia is a common etiology of osteoarthritis of the hip regardless of the history of developmental dysplasia of the hip (DDH), whether or not corrective surgeries are beneficial for the childhood asymptomatic acetabular dysplasia remains controversial due to a lack of evidence. We conducted a longitudinal study to compare the cartilaginous morphology on childhood magnetic resonance imaging (MRI) and the mature hip morphology of the same patient and to assess the predictive indicators for future acetabular dysplasia.

Methods: A total of 92 unaffected hips (47 unilateral DDH and 45 unilateral Legg-Calvé-Perthes disease) were reviewed for X-ray and MRI findings on childhood (mean age: 6. Read More

Acta Radiol 2020 Jun 26:284185120933240. Epub 2020 Jun 26.

Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, PR China.

Background: Measuring the pubofemoral distance (PFD) is important for evaluating the effectiveness of hip reduction in the treatment of developmental dysplasia of the hip (DDH). However, reference PFD values have not been established in normal infants.

Purpose: To investigate variations in PFD values measured in normal infant medial hips stratified by age, laterality, and gender. Read More

Jt Dis Relat Surg 2020 18;31(2):298-305. Epub 2020 Jun 18.

Bursa Şehir Hastanesi Ortopedi ve Travmatoloji Kliniği, 16110 Doğanköy, Nilüfer, Bursa, Türkiye.

Objectives: This study aims to report the physiological and radiological long-term results of total hip arthroplasty (THA) combined with or without subtrochanteric osteotomy in a group of developmental dysplasia of hip (DDH) patients.

Patients And Methods: This retrospective study included 90 hips of 59 patients (3 males, 56 females; mean age 45.7±10. Read More

S D Med 2020 May;73(5):223-227

University of South Dakota Sanford School of Medicine.

Developmental dysplasia of the hip (DDH), historically known as congenital hip dysplasia, is a multifactorial disease that affects numerous infants and children every year. DDH encompasses a wide spectrum of joint pathology and therefore screening recommendations, including serial physical examination and appropriate imaging if needed, are utilized to diminish the risk of abnormal hip development which may later impact mobility. Risk factors are poor predictors of DDH, but may increase its likelihood, and include female gender, breech positioning in the third trimester, multiple gestation and family history. Read More

Acta Biomed 2020 May 30;91(4-S):11-20. Epub 2020 May 30.

Ospedale Civile di Cittadella, U. O. di Ortopedia e Traumatologia, Centro Regionale Specializzato per la Prevenzione, lo Studio ed il Trattamento dell'Artrosi deformante dell'Anca, Cittadella (Padova), Italy.

Femoroacetabular impingement and developmental dysplasia of the hip are among the main causes of hip arthritis. In absence of degenerative alterations of the hip, there is the chance of a surgical conservative treatment. This study aims to show the clinical and imaging criteria to a correct and prompt diagnosis. Read More

J Pediatr Orthop 2020 Jul;40(6):e440-e445

Departments of Orthopaedics.

Background: Ultrasound (US) is the preferred imaging modality for the diagnosis and treatment of infantile developmental dysplasia of the hip (DDH). Currently accepted indices that distinguish normal from dysplastic hips in the coronal plane include percent femoral head coverage (FHC), α angle, and β angle. Recent data suggests that significant user and interscan variability may exist for these metrics. Read More

J Orthop Surg Res 2020 May 20;15(1):180. Epub 2020 May 20.

Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Shenyang, China.

Purpose: The anterior and medial approaches in open reduction for developmental dysplasia of the hip (DDH) had been widely used. The former could not directly approach the intra-articular interposition, while the latter had been associated with injury to blood vessel and avascular necrosis (AVN) of the femoral head. Meanwhile, the bikini incision had also been mentioned in some studies. Read More

Sisli Etfal Hastan Tip Bul 2019 25;53(2):103-109. Epub 2019 Apr 25.

Department of Radiology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey.

Developmental dysplasia of the hip (DDH) is still one of the biggest orthopedic problems in the world. Global poverty and refugee crises have led to it becoming a greater issue even in developed nations. Early diagnosis and effective treatment of DDH are required to prevent the possibility of arthrosis, limb shortening, pelvic asymmetry, and vertebral scoliosis. Read More

Bone Joint J 2020 May;102-B(5):618-626

Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang City, China.

Aims: The goal of closed reduction (CR) in the treatment of developmental dysplasia of the hip (DDH) is to achieve and maintain concentricity of the femoral head in the acetabulum. However, concentric reduction is not immediately attainable in all hips and it remains controversial to what degree a non-concentric reduction is acceptable. This prospective study is aimed at investigating the dynamic evolution of the hip joint space after CR in DDH using MRI. Read More

J Orthop Res 2020 Jul 30;38(7):1477-1485. Epub 2020 Apr 30.

Department of Orthopaedics, University of Utah, Salt Lake City, Utah.

Pelvic sagittal inclination (PSI) is often evaluated in patients with hip pathology using lateral radiographs. However, it would be useful if PSI could be predicted from an anteroposterior radiograph since this film is ubiquitous in the evaluation of hip pathology. Herein, computer-modeling was applied to predict PSI from radiographic measurements assessed in the anteroposterior plane. Read More

Radiol Bras 2020 Jan-Feb;53(1):63-68

UDI 24 horas, Teresina, PI, Brazil.

Hip pain in a child can have infectious, inflammatory, traumatic, neoplastic, or developmental causes, which can make the diagnosis challenging. Meticulous history taking and a detailed clinical examination guide the radiological investigation. In this article, we address some of the main causes of hip pain in childhood and their findings on diagnostic imaging. Read More

Radiol Clin North Am 2020 May;58(3):529-548

Department of Imaging Sciences, Strong Memorial Hospital, Box 648, 601 Elmwood Avenue, Rochester, NY 14642, USA.

Congenital, developmental, and acquired conditions of the pediatric hip frequently present with sequelae in the adult. There is substantial overlap in the end-stage results of these pathologic conditions, including osseous changes, chondral/labral injuries, and premature osteoarthritis. This review discusses the top 10 etiopathogeneses of pediatric hip conditions and presents associated dysmorphisms in the adult on an illustrative, multimodality, case-based template. Read More

BMC Musculoskelet Disord 2020 Apr 6;21(1):210. Epub 2020 Apr 6.

The Department of Orthopedics Surgery, Ningbo No. 6 Hospital, 1059# ZhongShan East Road, Ningbo, Zhejiang, 315040, People's Republic of China.

Background: When reconstructing a hip with developmental dysplasia and high dislocation, sub-trochanteric shortening osteotomy is typically needed for placing the acetabular component in the appropriate anatomical position. However, the procedure can result in complications such as non-union of the osteotomy. We evaluated the contact area and the coincidence rate between the proximal and distal fragments at different femoral osteotomy levels and lengths. Read More

Medicine (Baltimore) 2020 Apr;99(14):e19677

Nigde Omer Halisdemir University Teaching Hospital, Department of Orthopedic Surgery, Nigde.

In the Graf method of hip ultrasonography, the diagnosis of the infantile hip with developmental dysplasia of the hip (DDH) is strictly dependent on the bony roof (alpha angle) and the cartilage roof (beta angle) measurements. In this study, we investigated whether the infant hip could be diagnosed with DDH solely by evaluating ultrasound images obtained in the standard plane, without bony roof and cartilage roof measurements, in respect to different professional experience levels.Two hundred ten hip ultrasounds were randomly selected from patients who presented to our hospital for DDH screening. Read More

Orthopade 2020 May;49(5):408-416

Institute for Locomotion, Department of Orthopedics and Traumatology, St. Marguerite Hospital, 270 Boulevard Sainte Marguerite, BP 29 13274, Marseille, France.

Background: The progress of 3D imaging and manufacturing of implants has made it possible to achieve a custom-made concept in THA. The custom-made cementless femoral stem provides optimal implant stability combined with restoration of the native hip mechanics.

Objective: The purpose of this study was to evaluate the long-term survivorship of custom-made hip femoral stems in two populations of patients undergoing THA: patients under 50 years old (young patients group) and patients with high-grade developmental dysplasia of the hip (DDH group). Read More

Bone Joint J 2020 Apr;102-B(4):495-500

Musgrave Park Hospital, Belfast, UK.

Aims: To monitor the performance of services for developmental dysplasia of the hip (DDH) in Northern Ireland and identify potential improvements to enhance quality of service and plan for the future.

Methods: This was a prospective observational study, involving all infants treated for DDH between 2011 and 2017. Children underwent clinical assessment and radiological investigation as per the regional surveillance policy. Read More

Ophthalmic Genet 2020 02 17;41(1):83-87. Epub 2020 Mar 17.

Department of Ophthalmology, University Hospital Erasme, Brussels, Belgium.

Knobloch syndrome (OMIM 267750) is a rare autosomal recessive disorder due to genetic defects in the gene. The triad of high myopia, occipital defect, vitreoretinal degeneration has been described as pathognomonic for this condition. Patients with Knobloch syndrome have also extraocular problems as brain and kidney malformations. Read More

Wiad Lek 2019 Oct;72(10):1953-1956

I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine

Introduction: Developmental dysplasia of hip (DDH) remains one of the most common and severe congenital pathologies in infants. The best results of DDH treatment are observed in early-infancy up to 3 months. A sonographic examination was long recognized as a “golden standard” of early diagnosis of hip dysplasia, but some practitioners still do not trust this method through a certain number of pseudo-positive and pseudo-negative diagnoses. Read More

J Am Acad Orthop Surg 2020 02;28(3):91-101

From the Department of Orthopaedics, San Antonio Military Medical Center, San Antonio, TX (Dr. Schmitz and Dr. Murtha), and the Department of Orthopaedics, Washington University in St. Louis, St. Louis, MO (Dr. Clohisy).

Developmental dysplasia of the hip (DDH) in adolescents and young adults can cause notable pain and dysfunction and is a leading cause of progressive hip osteoarthritis in affected patients. Recognition of the clinical symptoms and radiographic presentation of DDH in adolescents and young adults are paramount for early management. Plain radiographs are critical for making proper diagnosis, whereas three-dimensional imaging including MRI and/or CT detects intra-articular pathology and better characterizes hip morphology. Read More

AJR Am J Roentgenol 2020 03 8;214(3):624-629. Epub 2020 Jan 8.

Department of Radiology, University of Missouri at Columbia, 1 Hospital Dr, Columbia, MO 65212.

The goals of this study were to assess the prevalence of anterior hip dislocation and to highlight the distinctive imaging features of anterior-superior hip dislocation. A retrospective chart review was conducted of all hip dislocations seen at one university hospital from January 2005 to January 2019. The radiology database was queried for all reports of hip or pelvis radiographs with the word "dislocation. Read More

J Pediatr Orthop 2020 Apr;40(4):e248-e255

Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA.

Background: Developmental dysplasia of the hip (DDH) is a common condition, affecting 1% to 2% of full-term infants. The American Academy of Orthopaedic Surgeons (AAOS) and American Academy of Pediatrics have published guidelines detailing best practices for DDH screening and treatment. The purpose of this survey was to determine DDH treatment practices of pediatric orthopaedic surgeons in North America. Read More

Medicine (Baltimore) 2020 Jan;99(1):e18655

King Saud University, College of Medicine, Research Chair of Spinal Deformities, Department of Orthopedics.

Rationale: Developmental dysplasia of the hip (DDH) has an incidence of 5 per 1000 newborns and its management depends on various factors. We present a rare case of DDH with soft tissue obliteration and a bony prominence in the center of the acetabulum after failed open reduction and acetabuloplasty.

Patient Concerns: A 20-month-old girl presented to our clinic with right hip stiffness after undergoing open reduction and acetabuloplasty at another hospital. Read More

Ultrasound Med Biol 2020 Mar 25;46(3):735-749. Epub 2019 Dec 25.

Orthopaedics and Traumatology Clinic, Şişli Hamidiye Etfal Training and Research Hospital, University of Medical Sciences, Istanbul, Turkey.

Neonatal hip ultrasound imaging has been widely used for a few decades in the diagnosis of developmental dysplasia of the hip (DDH). Graf's method of hip ultrasonography is still the most reproducible because of its classification system; yet, the reproducibility is questionable as a result of the high dependency on the skills of the sonographer and the evaluator. A computer-aided diagnosis system may help evaluators increase their precision in the diagnosis of DDH using Graf's method. Read More

Medicine (Baltimore) 2019 Dec;98(52):e18500

Shanghai Shenwei Information Technology.

Developmental dysplasia of the hip (DDH) is common, and features a widened Sharp's angle as observed on pelvic x-ray images. Determination of Sharp's angle, essential for clinical decisions, can overwhelm the workload of orthopedic surgeons. To aid diagnosis of DDH and reduce false negative diagnoses, a simple and cost-effective tool is proposed. Read More

J Clin Med 2019 Dec 19;9(1). Epub 2019 Dec 19.

Medical Research Center Oulu, University of Oulu, 90014, Oulu, Finland.

Developmental dysplasia of the hip (DDH) may require early abduction treatment with infants sleeping on their back for the first few months of life. As sleeping on back is known to cause deformational plagiocephaly, we assessed school age children treated for dislocation or subluxation of the hip-joint in infancy. Plagiocephaly was analyzed by using cephalic index (CI) and oblique cranial length ratio (OCLR) as anthropometric measurements from 2D digital vertex view photographs. Read More

J Orthop Surg Res 2019 Dec 9;14(1):420. Epub 2019 Dec 9.

Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.

Background: The deformity of the proximal femur and acetabular in patients with developmental dysplasia of the hip (DDH) renders an intraoperative decision for ideal component placement challenging. We hypothesized that the altered morphology of calcar femorale (CF) in DDH patients changed the fixation mechanism of the cementless metaphyseal-filling stem and aimed to predict stem anteversion using proximal femoral anatomical parameters from preoperative CT.

Methods: Preoperative and postoperative CT scans of 34 DDHs with a metaphyseal-filling stem in THA were retrospectively analyzed. Read More

J Orthop Surg Res 2019 Nov 21;14(1):379. Epub 2019 Nov 21.

Department of Women and Child's Care, Unit of Pediatric Orthopedics, Centre Hospitalier Universitaire Vaudois, CHUV, Lausanne, Switzerland.

Purpose: In case of residual hip dysplasia (RHD) in children, pelvic radiographs are sometimes insufficient to precisely evaluate the entire coverage of the femoral head, when trying to decide on the need for further reconstructive procedures.

Methods: This study retrospectively compares the bony and the cartilaginous acetabular angle of Hilgenreiner (HTE) of 60 paediatric hips on pelvic MRI separated in two groups. Group 1 included 31 hips with RHD defined by a bony HTE > 20°. Read More

Med Sci Monit 2019 Nov 21;25:8807-8813. Epub 2019 Nov 21.

Department of Pediatric Orthopedics, Beijing Jishuitan Hospital, Beijing, China (mainland).

BACKGROUND Developmental dislocation of the hip (DDH) results in osteoarthritis in infants and children. This study aimed to investigate the effects of a single approach to arthroscopic reduction and debridement on clinical outcome in 12 infants with DDH. MATERIAL AND METHODS Twelve infants with irreducible DDH underwent single approach arthroscopic reduction and debridement followed by the use of a frog-leg position plaster cast with fixed flexion and abduction of the hips combined with external fixation for 6-8 weeks. Read More

Acta Chir Orthop Traumatol Cech 2019 ;86(5):368-371

I. Ortopedicko-traumatologická klinika Lekárskej fakulty Univerzity Komenského a Univerzitnej nemocnice, Bratislava.

The authors describe a case report of a 5-year-old foreign girl with a rare bilateral hip dislocation after a car accident. Young surgeons at the emergency department performed an unsuccessful closed reduction. Since the clinical and ultrasound screening of DDH of all newborns in the Slovak Republic is carried out until the age of 4-6 weeks, the treatment of dislocated hips starts early and the late diagnosed dislocations occur rarely. Read More

Acta Chir Orthop Traumatol Cech 2019 ;86(5):324-329

Ortopedické oddělení CLPA-Mediterra, Praha.

PURPOSE OF THE STUDY In the Czech Republic a systematic neonatal hip screening has been performed for many decades. Its aim is to prevent, by means of early treatment of hip dysplasia in the newborn period, the development of hip deformities leading to the onset of degenerative hip changes during the adulthood. The study aims to prove the effects of paediatric hip care based on the data analysis of the Czech National Register of Joint Replacement. Read More

Rev Bras Ortop (Sao Paulo) 2019 Sep 9;54(5):497-502. Epub 2019 Oct 9.

Faculdade de Medicina, Universidade Católica de Pelotas, Pelotas, RS, Brasil.

 To describe the profile of patients with developmental dysplasia of the hip (DDH) diagnosed by physical and ultrasound examination, with the implementation of a protocol for the treatment and follow-up of DDH.  A cross-sectional study with DDH patients born between January 2014 and December 2016, in the city of Pelotas, Southern Brazil. Ethnicity, gender, birth weight, fetal presentation, affected side of the hip, gestational age, maternal age and family history were considered. Read More

Orthop Surg 2019 Dec 14;11(6):1142-1148. Epub 2019 Nov 14.

The Fourth Medical Center of the Chinese People's Liberation Army General Hospital, Department of Orthopaedic, Beijing, China.

Objective: To explore the difference in pelvic tilt and hip joint parameters with developmental dysplasia of the hip (DDH) comparing the anteroposterior (AP) pelvic radiographs taken in supine and standing positions.

Methods: A prospective study of DDH patients undergoing Bernese periacetabular osteotomy (PAO) was conducted. AP pelvic radiographs were taken in supine and standing positions before surgery The pelvic tilt and hip joint parameters from the two radiographs were compared. Read More

BMC Musculoskelet Disord 2019 Nov 11;20(1):530. Epub 2019 Nov 11.

Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.

Background: The purpose of this study was to investigate the relationship between the three dimensional (3D) femoral head displacement in patients with developmental dysplasia of the hip (DDH) and Crowe classification.

Methods: Retrospectively, CT scans of 60 DDH patients and 55 healthy demography-matched healthy control subjects were analyzed. Using the anterior pelvic plane a pelvic anatomic coordinate system was established. Read More

Acta Orthop 2020 04 12;91(2):197-202. Epub 2019 Nov 12.

Division of Pediatric Orthopaedics, Seoul National University Children's Hospital, Seoul.

Background and purpose - There are few studies on overgrowth of the affected limb after treatment of developmental dysplasia of the hip (DDH). We investigated the incidence of overgrowth and its risk factors in DDH patients.Patients and methods - 101 patients were included in this study. Read More

Medicine (Baltimore) 2019 Nov;98(45):e17727

Department of Orthopedics, the Second Hospital of Jilin University, Changchun, Jilin Province, China.

Conventional methods have limitations in measuring femoral neck torsion angle (FNTA) of patients with femoral deformities. A new method of three-dimensional (3D) reconstruction technology based on computer tomography (CT) was proposed to enhance measurement accuracy and applicability in this study.Bilateral FNTA of 50 developmental dysplasia of the hip (DDH) patients (DDH group) and 81 volunteers (normal group) were measured by Mimics software based on CT data with the marker lines determined by centerline and curvature. Read More

Pediatr Radiol 2019 11 4;49(12):1669-1677. Epub 2019 Nov 4.

Department of Orthopedic Surgery, Boston Children's Hospital, Boston, MA, USA.

Borderline acetabular dysplasia refers to mildly sub-normal patterns of acetabular shape and coverage that might predispose children to mechanical dysfunction and instability. Borderline dysplasia generally includes children with a lateral center edge angle (CEA) of 18-24°. Some children with borderline radiographic measurements have normal joint mechanics and function while others benefit from acetabular reorienting surgery. Read More

Pediatr Radiol 2019 11 4;49(12):1652-1668. Epub 2019 Nov 4.

Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.

Developmental dysplasia of the hip (DDH) describes a broad spectrum of developmental abnormalities of the hip joint that are traditionally diagnosed during infancy. Because the development of the hip joint is a dynamic process, optimal treatment depends not only on the severity of the dysplasia, but also on the age of the child. Various imaging modalities are routinely used to confirm suspected diagnosis, to assess severity, and to monitor treatment response. Read More

BMC Musculoskelet Disord 2019 Nov 3;20(1):513. Epub 2019 Nov 3.

Department of Orthopaedic Surgery, Chinese People's Liberation Army General Hospital, 28 Fuxing Road, Beijing, 100853, People's Republic of China.

Background: Limb length discrepancy (LLD) is one of the main cause of dissatisfaction after total hip arthroplasty (THA). The teardrop-lesser trochanter method can accurately predict and analyze LLD for healthy people. However, for patients with preoperative LLD, no method for predicting postoperative LLD is currently available, and these patients are highly susceptible to more severe LLD after THA. Read More

J Orthop Surg Res 2019 Oct 29;14(1):339. Epub 2019 Oct 29.

Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou City, Jiangsu Province, China.

Purpose: To restore rotation center exactly in total hip arthroplasty (THA) is technically challenging for patients with end-stage osteoarthritis due to developmental dysplasia of the hip (DDH). The technical difficulty is attributable to the complex acetabular changes. In this study, we investigated the pathomorphology of acetabulum and Harris fossa of Crowe types I to IV and discussed the method of restoring rotation center of the hip. Read More

J Orthop Surg Res 2019 Oct 17;14(1):323. Epub 2019 Oct 17.

Division of Orthopedic Surgery, Department of Regenerative and Transplant Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan.

Background: It was previously reported that pelvises with developmental dysplasia of the hip are tilted anteriorly, which increases bony coverage of the femoral head. This study aimed to investigate the correlation between anatomical parameters of the pelvis such as pelvic incidence and anatomical pelvic tilt and functional parameters of the spine and pelvis such as tilt of the anterior pelvic plane.

Methods: We examined 84 female patients with bilateral developmental dysplasia of the hip who had undergone curved periacetabular osteotomy at author's institution. Read More

Orthop Traumatol Surg Res 2019 11 12;105(7):1271-1276. Epub 2019 Oct 12.

Department of Orthopaedic Surgery, University of Yamanashi, 1110 Shimokato, Chuo-shi, 409-3898 Yamanashi, Japan.

Background: In total hip arthroplasty (THA), the concept of combined anteversion is accepted as one of best indicators of prosthetic joint stability. Technical parameters may influence the stem and cup anteversion. We therefore investigated if stem anteversion could be influenced by surgical approaches in cementless THA using a tapered wedge stem with stem-first technique. Read More

Arthroscopy 2019 10;35(10):2857-2865

Department of Orthopedic Surgery, Yokohama City University, Yokohama, Japan.

Purpose: To evaluate radially reconstructed 3.0-Tesla 3-dimensional multiple-echo recombined gradient echo (MERGE) magnetic resonance imaging (MRI) without arthrography for the assessment of acetabular labrum tears, using arthroscopic evaluation as the reference standard.

Methods: A total of 71 consecutive hips, including 29 with femoroacetabular impingement, 26 with borderline developmental dysplasia of the hip, and 16 with early-stage osteoarthritis, were evaluated in this retrospective study. Read More

J Pediatr Orthop 2019 Nov/Dec;39(10):505-509

Center for Excellence in Hip Disorders, Texas Scottish Rite Hospital for Children.

Background: Variation exists in the Pavlik harness (PH) treatment regimen for infantile developmental dysplasia of the hip (DDH). The purpose of this study was to determine if the daily PH wear duration (23 vs. 24 h) and frequency of follow-up visits affect the clinical and radiographic outcomes of infants with dislocated but reducible (Ortolani+) hips. Read More

J Orthop Res 2020 03 9;38(3):578-587. Epub 2019 Oct 9.

Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.

Pelvic sagittal inclination (PSI) significantly affects the femoral head coverage by the acetabulum in patients with developmental dysplasia of the hip (DDH), while no reports have quantified PSI in DDH patients in the supine and standing positions. Furthermore, little is known about how PSI changes after periacetabular osteotomies. Herein, PSI in the supine and standing positions was quantified in DDH patients preoperatively and postoperatively. Read More

J Ayub Med Coll Abbottabad 2019 Jul-Sep;31(3):427-431

Department of Orthopaedics, Gajju Khan Medical College, Swabi, Pakistan.

Background: Developmental dysplasia of the hip (DDH) is a diverse entity, which range from mild acetabular dysplasia to frank irreducible hip dislocation. Data regarding the safety and efficacy of one stage triple procedure is limited. Our aim was to analyse the mid-term functional and radiological outcome of single stage triple procedure for children with DDH after walking age. Read More

J Pediatr Orthop 2019 Oct;39(9):453-457

Division of Orthopaedic Surgery, The Children's Hospital of Philadelphia, Philadelphia, PA.

Background: Although ultrasound (US) is frequently used in diagnosis and management of infantile developmental dysplasia of the hip, precise ultrasonographic parameters of what constitutes a dislocation, subluxation etc remain poorly defined. The purpose of this study was (1) to describe the ultrasonographic characteristics of a large cohort of clinically dislocated but reducible hips and (2) to begin to develop ultrasonographic definitions for what constitutes a hip dislocation.

Methods: A retrospective review of prospectively collected data from an international multicenter study group on developmental dysplasia of the hip was conducted on all patients under 6 months of age with hip(s) that were dislocated at rest but reducible based on initial physical examination (ie, Ortolani positive). Read More

J Pediatr Orthop 2019 Oct;39(9):449-452

Pediatric Orthopedics.

Background: Developmental dysplasia of the hip (DDH) is one of the most common congenital defects in the newborn. When its severe form is not corrected, it is associated with long-term morbidity. Closed reduction with casting is the standard primary treatment and reduction is confirmed by magnetic resonance imaging (MRI). Read More

BMC Musculoskelet Disord 2019 Sep 5;20(1):412. Epub 2019 Sep 5.

Department of Orthopaedic Surgery, University of Texas Southwestern Medical Center, 1801 Inwood Rd 1st floor, Dallas, TX, 75390, USA.

Background: Age of onset in symptomatic developmental dysplasia of the hip (DDH) and femoroacetabular impingement syndrome (FAIS) varies. The purpose of this study was to investigate whether psychological factors, radiographic, and clinical variables were related to age of onset of hip pain in DDH and FAIS.

Methods: We collected demographic, clinical, and radiographic data on 56 DDH and 84 FAIS patients. Read More