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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

Vopr Kurortol Fizioter Lech Fiz Kult 2020 ;97(2):52-57

State Scientific Center of the Russian Federation - A.I. Burnazyan Federal Medical Biophysical Center, Moscow, Russia.

Introduction: In the late stages of avascular necrosis of the femoral head (ANFH), total hip arthroplasty (THA) is a non-alternative treatment method. In the early stages, methods of conservative treatment show some effectiveness. Among them, most often there is evidence of the effectiveness of physiotherapy options. Read More

Medicine (Baltimore) 2020 Apr;99(16):e19747

Luoyang Orthopedic Hospital of Henan Province, Orthopedics Hospital of Henan Province, Luoyang, China.

The objective of this retrospective study was to evaluate the efficacy of high-energy focused extracorporeal shock wave therapy (HF-ESWT) on painful bone marrow edema syndrome (BMES) of the hip and shorten the natural course of disease.Thirty-four consecutive patients with BMES of the hip were treated with HF-ESWT in our department between August 2017and July 2018. The progression and treatment results of BMES were evaluated by imaging examination and clinical outcomes. 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

Eur Radiol 2020 Mar 12. Epub 2020 Mar 12.

Department of Radiology, IRCCS Sacro Cuore Don Calabria Hospital, Via Don A. Sempreboni 10, 37024, Negrar, Italy.

Objectives: To evaluate the diagnostic accuracy of dual-energy computed tomography (DECT) in identifying bone marrow edema (BME) around the hip joint in non-traumatic patients.

Methods: This prospective IRB-approved study was conducted between January 2019 and October 2019 and included 59 consecutive patients (18 males, 41 females; mean age 61.5 years, range 32-82) who were assessed by DECT and magnetic resonance imaging (MRI) within a 5-day period. Read More

BMC Infect Dis 2020 Mar 6;20(1):202. Epub 2020 Mar 6.

Peking University China-Japan Friendship School of Clinical Medicine, 2 Yinghuadong Road, Chaoyang District, Beijing, 100029, China.

Background: Brucellosis is a zoonotic infection transmitted from infected animals to humans, osteonecrosis of the femoral head (ONFH) is a devastating disease that affects patients' life with pain, dysfunction of walking and always lead to total hip arthroplasty (THA). We presented a case of ONFH which was very likely due to the infection of Brucella spp.

Case Presentation: The patient was a 49 years-old male who was a herder living in Inner Mongolia, the northern part of China. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2020 Jan;34(1):57-62

The First School of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan Shandong, 250355,

Objective: To observe the volume and distribution of necrotic tissue of femoral head in steroid-induced osteonecrosis of femoral head (SONFH) patients by three-dimensional reconstruction of CT.

Methods: A clinical data of 25 patients with SONFH between September 2016 and December 2018 was analyzed. There were 22 males and 3 females, with an average age of 38. Read More

World J Nucl Med 2019 Oct-Dec;18(4):416-419. Epub 2019 Dec 18.

Department of Urology, The James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.

In recent years, the emergence of prostate-specific membrane antigen (PSMA)-targeted positron-emission tomography (PET) imaging has brought about a paradigm shift in the way that prostate cancer (PCa) is imaged in many parts of the world. Although PSMA-targeted PET imaging has been demonstrated to be a highly sensitive and specific imaging modality for the identification of sites of PCa, its clinical utility hinges on the ability of imaging specialists and their clinical colleagues to recognize potential false-positive sources of uptake and to tailor therapy based on that recognition. In this manuscript, we report the case of a 74-year-old male with a history of recurrent PCa who was referred for a restaging PSMA-targeted F-DCFPyL PET/computed tomography (PET/CT). Read More

Mymensingh Med J 2020 Jan;29(1):55-59

Dr Neli Rubyat Sanzida Banu, Assistant Professor (Radiology & Imaging), Mymensingh Medical College (MMC), Mymensingh, Bangladesh.

The purpose of this study is to diagnose Legg-Calve-Perthes disease by computed radiography and Magnetic resonance imaging and accurate staging and correlating the findings of these two modalities. Thirty five (35) patients complaining pain in groins and painful walking, after thorough physical examinations were sent to Department of Radiology & Imaging, Mymensingh Medical College Hospital, Mymensingh, Bangladesh for computed radiography and Magnetic Resonance Imaging examination. This cross sectional study was conducted in the Department of Radiology, Mymensingh Medical College Hospital, Mymensingh, Bangladesh from July 2016 to June 2018. Read More

Case Rep Orthop 2019 21;2019:6956391. Epub 2019 Nov 21.

Sutter General Hospital, Department of Laboratory Medicine, Sutter Medical Foundation Laboratory-Microbiology, USA.

Morphological abnormalities such as cam deformity or growth disturbances can have a detrimental effect on the smooth function of the hip joint. This case reports an attempt to salvage the hip joint of a young patient with a posttraumatic growth disturbance of the femoral head using a fresh osteochondral allograft. This treatment has been used very rarely in the femoral head due to the presumed tenuous blood supply of the head and the perceived risk of nonunion or progressive avascular necrosis. Read More

Zhongguo Gu Shang 2019 Nov;32(11):1003-1007

Department of Orthopaedics, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215000, Jiangsu, China;

Objective: To observe clinical efficacy of Yishen Huoxue decoction(YSHXD) for the treatment of non-traumatic osteonecrosis of femoral head at early and middle stage.

Methods: From January to June 2016, 69 patients (72 hips) with non-traumatic osteonecrosis of femoral head at early and middle stage were divided into treatment group and control group according to therapeutic methods. In treatment group, there were 35 patients 43 hips, including 15 males and 20 females, aged from 28 to 62 years old with an average of(41. Read More

J Arthroplasty 2020 Apr 27;35(4):933-940. Epub 2019 Nov 27.

Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.

Background: The Association Research Circulation Osseous (ARCO) presents the 2019 revised staging system of osteonecrosis of the femoral head (ONFH) based on the 1994 ARCO classification.

Methods: In October 2018, ARCO established a task force to revise the staging system of ONFH. The task force involved 29 experts who used a web-based survey for international collaboration. Read More

Lancet 2019 11;394(10213):e38

Department of Orthopaedic Surgery, Royal Infirmary of Edinburgh, Edinburgh, UK.

Arch Orthop Trauma Surg 2020 Feb 30;140(2):247-253. Epub 2019 Nov 30.

Laboratory of Biomechanics, Justus-Liebig-University Giessen, Klinikstrasse 29, 35392, Giessen, Germany.

Introduction: Stress shielding may lead to aseptic loosening which is a common reason for implant failure. An established method to identify implants with risk of implant failure caused by aseptic loosening is to measure early migration of the stem with the "Ein Bild Roentgen Analyse" femoral component analysis (EBRA-FCA). Therefore, the aim of this study was to measure the migration of a cementless short stem prosthesis via EBRA-FCA to predict the future performance. Read More

J Pediatr Orthop B 2020 Jan;29(1):22-28

Tuckahoe Orthopaedic Associates, Richmond, Virginia, USA.

The objective of this study is to present the clinical and radiographic data collected from patients who were treated with a varus derotational osteotomy using Rush rod fixation and compare this to published norms of outcomes using blade plate fixation. A retrospective chart and radiograph review was conducted after identifying 44 patients with 61 hips who underwent varus derotational osteotomy with Rush rod fixation at our institution between 2006 and 2016. We identified 44 patients with 61 hips who underwent the procedure. Read More

BMC Musculoskelet Disord 2019 Nov 15;20(1):544. Epub 2019 Nov 15.

State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China.

Background: Several methods are available for the treatment of early-stage osteonecrosis of the femoral head. Core decompression with implantation is a widely-used treatment. However, no single implant is recognized as the most effective way to prevent disease progression. Read More

Rev Med Interne 2020 Jan 10;41(1):27-36. Epub 2019 Nov 10.

Service de rhumatologie, centre de compétence des maladies osseuses rares, hôpitaux universitaires de Strasbourg, université de Strasbourg, 67000 Strasbourg, France.

Avascular necrosis is an ischemic or cytotoxic necrosis of epiphyseal bone, responsible for joint pain, altered life quality and frequently affecting young patients. Avascular necrosis can be unifocal or multifocal, underlining the possibility of a systemic origin. Avascular necrosis involves the femoral head in more than 75% of cases. Read More

J Orthop Surg Res 2019 Nov 8;14(1):349. Epub 2019 Nov 8.

Department of Pediatric Orthopaedics, Altonaer Children's Hospital, Bleickenallee 38, 22763, Hamburg, Germany.

Background: In recent years, the modified Dunn osteotomy has gained popularity to treat slipped capital femoral epiphysis (SCFE) with various complication rates. Most studies included patients with different severities. This study aimed to determine (1) the radiological and clinical outcome, (2) the health-related quality of life, and (3) the incidence of avascular necrosis of the femoral head (AVN) in patients with severe chronic or acute on chronic SCFE treated by the modified Dunn procedure. Read More

Zhonghua Wai Ke Za Zhi 2019 Nov;57(11):807-811

Department of Bone and Joint Surgery, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China.

To evaluate the progress and influence factors of asymptomatic osteonecrosis of the femoral head(ONFH). MRI was performed on the contralateral hips of 174 patients with unilateral symptomatic ONFH who admitted at Department of Orthopaedics, the Second Affiliated Hospital of Xi'an Jiaotong University from January 2012 to December 2018. Eighty-three of 174 patients with unilateral ONFH were found suffering from contralateral ONFH(47. Read More

Ned Tijdschr Geneeskd 2019 10 24;163. Epub 2019 Oct 24.

Amphia Ziekenhuis, Afd. Kinderorthopedie, Breda.

A limping gait pattern in a child is a red flag for every physician until proven otherwise. Among the most common causes are coxitis fugax, infection (septic arthritis, osteomyelitis), Perthes disease, and slipped capital femoral epiphysis, depending on the age of the patient. A high index of suspicion is required because clinical findings are often subtle, and the diagnosis may be present even if initial radiographs are negative. Read More

J Orthop Surg Res 2019 Oct 29;14(1):338. Epub 2019 Oct 29.

Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, XueYuan West Road, Luheng District, Wenzhou, 325000, Zhejiang Province, People's Republic of China.

Background: Femoral head fractures are uncommon injuries. Open reduction and internal fixation (ORIF) of femoral head fracture is the preferred treatment for most patients. There are several surgical approaches and treatments for this difficult fracture. Read More

Orthop Surg 2019 Oct;11(5):794-800

Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing, China.

Objective: To develop a prediction method for femoral head collapse by using patient-specific finite element analysis of osteonecrosis of the femoral head (ONFH).

Methods: The retrospective study recruited 40 patients with ARCO stage-II ONFH (40 pre-collapse hips). Patients were divided into two groups according to the 1-year follow-up outcomes: patient group without femoral head collapse (noncollapse group, n = 20) and patient group with collapse (collapse group, n = 20). Read More

Bone 2020 Jan 22;130:115099. Epub 2019 Oct 22.

EA 4490, PMOI, Physiopathologie des Maladies Osseuses Inflammatoires, University of Lille, F-59000, Lille, France; Department of Radiology, Lille Catholic Hospitals, University of Lille, F-59160, Lomme, France.

The potency of magnetic resonance imaging (MRI) to measure the exact extent of osteonecrosis of the femoral head (ONFH) remains uncertain. The objective of this study was to determine if the volume of necrosis assessed with MRI accurately reflects the volume of architectural mineral alterations in osteonecrosis of the femoral head by comparison with high-resolution microfocus X-ray computed tomography (HR-μCT). Fourteen male patients aged 53 years [46. Read More

Lakartidningen 2019 Oct 21;116. Epub 2019 Oct 21.

Goteborgs universitet Sahlgrenska Akademin - avdelningen för ortopedi vid institutionen för kliniska vetenskaper Goteborg, Sweden Goteborgs universitet Sahlgrenska Akademin - avdelningen för ortopedi vid institutionen för kliniska vetenskaper Goteborg, Sweden.

Coxartrosis is a common cause of hip pain among the elderly population. Avascular necrosis (AVN), also known as osteonecrosis, is a disease that most commonly affects the femoral head as a result of decreased blood supply to the bone. The etiology and pathogenesis is still unclear, but there are various traumatic and atraumatic factors that have been suggested as risk factors for AVN. Read More

BMC Musculoskelet Disord 2019 Oct 15;20(1):448. Epub 2019 Oct 15.

Sports Medicine, Department of Orthopaedic Surgery, Massachusetts General Hospital, Partners Heath System, Boston, MA, 02114, USA.

Background: Osteonecrosis of the femoral head (ONFH) is a progressive disease that leads to collapse and the development of secondary arthritis. The preferred management of ONFH remains controversial. Arthroscopic-assisted management of ONFH is a new and evolving approach for hip preservation. Read More

Surg Neurol Int 2019 23;10:165. Epub 2019 Aug 23.

Departments of Neurosurgery Nanoori Hospital, Seoul, Republic of Korea.

Background: Occasionally, hip pathologies may present alone or combined with lumbar spine pathology, especially lumbar stenosis. Although the history and clinical examination may help differentiate between the two, hip X-rays alone without accompanying magnetic resonance imaging (MRI) studies may prove unreliable.

Case Descriptions: Case 1 - A 72-year-old male presented with the sudden onset of severe back and left posterior thigh pain. Read More

Surg Technol Int 2019 11;35:417-421

Department of Orthopedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea.

Introduction: Osteonecrosis of the femoral head (ONFH) usually affects patients younger than 50 years and frequently leads to collapse of the femoral head and subsequent osteoarthritis of the hip. Joint-preserving procedures are attempted in the early stages without collapse, while total hip arthroplasty (THA) is done during more advanced stages with femoral head collapse or a fracture in the necrotic portion. Thus, accurate staging of the disease is mandatory to decide therapeutic strategy. Read More

Exp Ther Med 2019 Oct 30;18(4):2475-2478. Epub 2019 Jul 30.

Department of Bone and Joint Surgery, The First Hospital of Jilin University, Jilin, Changchun 130021, P.R. China.

Osteonecrosis is a condition that frequently affects patients with systemic lupus erythematosus (SLE). However, reports on severe multifocal osteonecrosis involving more than three anatomical sites in patients with SLE are scarce. The present study describes a case of SLE with multifocal osteonecrosis involving all four limbs. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2019 Oct;33(10):1291-1298

Department of Orthopedics, the Second Hospital of Tangshan, Tangshan Hebei, 063000, P.R.China.

Objective: To perfect the theory system of minimally invasive treatment for osteonecrosis of the femoral head (ONFH) with β tricalcium phosphate (β-TCP) bioceramic system and evaluate the effectiveness.

Methods: Eighteen New Zealand white rabbits aged 7-8 months were used to establish an animal model to verify the vascularization of porous β-TCP bioceramic rods. Micro-CT based three-dimensional reconstruction and fluorescence imaging were used to display the new blood vessels at 4, 8, and 12 weeks after operation. Read More

BMJ Case Rep 2019 Sep 18;12(9). Epub 2019 Sep 18.

Pediatric Rheumatology, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada.

We describe an 11-year prospective clinical and radiologic course of a 6-year-old boy with bilateral Legg-Calvé-Perthes disease, who was treated with intravenous pamidronate (IV-PAM). His baseline radiographs showed grade IV avascular necrosis/Catterall stage IV, and at worst he progressed to lateral pillar/Herring stage C bilaterally. His disease initially was extremely functionally limiting with expected poor outcome with eventual joint replacement. 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

Geriatr Orthop Surg Rehabil 2019 4;10:2151459319872943. Epub 2019 Sep 4.

Department of Nuclear Medicine, Inha University Hospital, Incheon, Republic of Korea.

Introduction: The aim of this study was to determine the diagnostic value of single-photon emission computed tomography/computed tomography (SPECT/CT) in prediction of avascular necrosis (AVN) after femoral neck fracture and to evaluate whether photon defect in femoral head as seen in SPECT/CT can be an index for choice of surgical method.

Methods: This study was based on 97 patients who took SPECT/CT after femoral neck fracture from November 2012 to November 2017, with 64 patients with femoral intertrochanteric fracture in which chances of AVN is rare as a comparison group. Among 97 patients with femoral neck fracture, osteosynthesis was conducted in 7 patients with less than 15% of photon defect in damaged femoral head and 7 patients who wanted osteosynthesis, despite photon defect more than 15%, and 83 patients with photon defect more than 25% had arthroplasty. Read More

J Orthop Res 2020 02 6;38(2):269-276. Epub 2019 Oct 6.

Department of Orthopaedics and Traumatology, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310053, China.

A combination treatment with porous tantalum rod implantation and intra-arterial infusion of peripheral blood stem cells (PBSCs) provides a promise for treating early and intermediate stages of osteonecrosis of the femoral head (ONFH). However, its clinical indications and application restrictions remain unclear. This study aims to determine the clinical, histological, and radiological outcomes of a combination treatment using mechanical support and a targeted intra-arterial infusion of PBSCs for painful ONFH with a cap-shaped separation (CSS) cartilage defect. Read More

Medicine (Baltimore) 2019 Sep;98(37):e17150

Department of Orthopedics, The Second Hospital of Jilin University, Nanguan District, Changchun City, Jilin, China.

Rationale: Obturator dislocation of the femoral head combined with ipsilateral femoral neck and pubic fracture is a rare injury. We used cannulated screws combined with a femoral neck medial plate for the first time to treat this type of injury and achieved good follow-up results.

Patient Concerns: The patient was hospitalized due to an accident resulting in swelling and deformity accompanied by limited mobility of the right hip and left knee. Read More

Bull Hosp Jt Dis (2013) 2018 Sep;76(3):171-175

Background: Adverse reactions to metal debris after total hip arthroplasty are an increasing concern. Metal debris is released from the metal-on-metal articulation itself as well as from the head-neck taper. There is also a risk of corrosion at the neck-stem junction. Read More

J Orthop Surg Res 2019 Aug 27;14(1):270. Epub 2019 Aug 27.

Institute of Hip Joint, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.

Background: Osteonecrosis of the femoral head was gradually concerned as a global disease for its progression to collapse of the femoral head, ultimately causing the arthritic change. Due to the high incidence of this disease in young people, arthroplasty tends to be suspected for its uncertain long-term efficiency. Vascularized pedicle iliac bone grafts, as a hip-preserving surgery, were regarded as an effective option in hip-preserving protocol since the 1970s. Read More

Comput Methods Biomech Biomed Engin 2019 Nov 20;22(14):1107-1115. Epub 2019 Aug 20.

Department of Orthopaedic Surgery, University Medical Centre Ljubljana , Ljubljana , Slovenia.

The biomechanical parameters of the hip joint articular surface were analysed in 141 adult hips after Legg-Calve Perthes Disease, and 114 contralateral unaffected hips (controls), by using HIPSTRESS mathematical models. Geometrical parameters, assessed from anteroposterior and axial radiograms, were used as input to models for resultant hip force and contact hip stress. Results confirm previous indications that head enlargement after the Legg-Calve-Perthes Disease compensates the values of hip stress. Read More

J Med Case Rep 2019 Aug 16;13(1):254. Epub 2019 Aug 16.

Department of Orthopaedic Surgery, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.

Introduction: Avascular necrosis of the femoral capital epiphysis is the most serious complication after traumatic dislocation of the hip in children. This case report discusses the localization and revascularization of the necrotic femoral head following rarely experienced traumatic open anterior hip dislocation in children.

Case Presentation: Our patient was an 11-year-old Japanese boy who had open anterior hip dislocation sustained in a traffic accident. Read More

BMJ Case Rep 2019 Aug 13;12(8). Epub 2019 Aug 13.

University of Leeds, Leeds Teaching Hospitals NHS Trust, Leeds, UK.

In postcollapse hip avascular necrosis (AVN), the femoral head cannot be salvaged, necessitating total hip replacement. We report a case of a 39-year-old woman who developed idiopathic femoral head AVN with marked symptoms and radiological evidence of articular surface collapse. We treated her with core decompression combined with the 'diamond concept' (implantation of bone marrow concentrate, a growth factor and bone graft substitute) and distracted the hip joint with external fixator. Read More

Clin Sci (Lond) 2019 09 19;133(18):1955-1975. Epub 2019 Sep 19.

Department of Orthopedics, Wuhan Third Hospital, Tongren Hospital of Wuhan University, Wuhan 430074, P.R. China

Mesenchymal stem cells (MSCs) with multipotential differentiation capacity can differentiate into bone cells under specific conditions and can be used to treat osteonecrosis (ON) of the femoral head (ONFH) through cell transplantation. The current study aims to explore the role of bone marrow (BM) MSCs (BMSCs)-derived exosomes carrying microRNA-122-5p (miR-122-5p) in ONFH rabbit models.First, rabbit models with ONFH were established. Read More

Cleve Clin J Med 2019 Aug;86(8):511-512

Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH, USA.

Ugeskr Laeger 2019 Jul;181(30)

In this review about perfusion magnetic resonance imaging (pMRI), we consider it to give detailed insight into the distribution of the infarction in the femoral head in the early phase of Perthes disease. The degree of head involvement is closely related to the long-term prognosis, and as early surgical treatment of children with severe head involvement may be beneficial, pMRI is suggested as an examination in older children with early stages of Perthes disease. The use of gadolinium as contrast medium in otherwise healthy children seems safe, but long-term effects are unknown. Read More

Can J Surg 2019 08;62(4):249-258

From the Department of Orthopaedic Surgery, Mount Sinai Hospital, Toronto, Ont. (Mei, Safir, Gross, Kuzyk); and the Department of Family Medicine, Queen’s University, Kingston, Ont. (Gong).

Background: Total hip arthroplasty (THA) is increasingly performed in younger patients despite the lack of comprehensive assessment of long-term outcomes. We systematically reviewed the contemporary literature to assess the 1) indications, 2) implant selection and long-term survivorship, 3) complication and reoperation rates and 4) radiographic and functional outcomes of primary THA in patients younger than 55 years.

Methods: We searched the Embase and MEDLINE databases for English-language articles published between 2000 and 2018 that reported outcomes of primary THA in patients younger than 55 years with a minimum follow-up duration of 10 years. Read More

J Ultrasound Med 2020 Feb 23;39(2):247-257. Epub 2019 Jul 23.

Division of Orthopedic Surgery, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.

Objectives: Developmental dysplasia of the hip (DDH) is one of the most common developmental deformities of the lower extremity. Although many children are successfully treated with a brace or harness, some require intraoperative closed or open reduction and spica casting. Surgical reduction is largely successful to relocate the hip; however, iatrogenic avascular necrosis is a major source of morbidity. Read More

Cureus 2019 May 3;11(5):e4596. Epub 2019 May 3.

Surgery, University of Texas Health Science Center at San Antonio, San Antonio, USA.

Traumatic hip dislocations require prompt diagnosis and treatment to prevent avascular necrosis of the femoral head. This injury is further complicated when there is an ipsilateral femur fracture. Here, we present what is likely the first reported case of a patient with traumatic hip dislocation and ipsilateral femur fracture with transrectal displacement of the femoral head. Read More

J Pediatr Orthop 2019 Aug;39(7):339-346

Department of Orthopedic Surgery, University of California.

Background: Recent studies have demonstrated the intra-articular cartilage and labral damage that can occur from the proximal femoral cam-like deformity of a moderate to severe slipped capital femoral epiphysis (SCFE). The approach to treating this deformity in a symptomatic Loder stable hip is controversial. The purpose of this study was to compare radiographic outcomes, complication rates, and revision rates between Imhauser type triplane proximal femoral osteotomy (TPFO) and the modified Dunn procedure (MDP). Read More

Hip Int 2019 Jul 7:1120700019860492. Epub 2019 Jul 7.

Department of Orthopaedic Surgery, The Catholic University of Korea, Bucheon, Republic of Korea.

Objective: To evaluate the predicting value of Tc-hydroxydiphosphonate (HDP) pinhole bone scan in development of osteonecrosis of femoral head (ONFH) in patients with femoral neck fracture after cannulated screw fixation.

Methods: Pinhole bone scan of patients with metallically fixed femoral neck fracture from 2001 to 2015 were retrospectively reviewed. Initial pinhole bone scan was obtained within 2-3 weeks after surgery. Read More

Acta Orthop 2019 12 4;90(6):537-541. Epub 2019 Jul 4.

Department of Surgical and Perioperative Sciences at Umeå University, Umeå.

Background and purpose - Preoperative posterior tilt of the femoral head as seen on lateral radiographs has been reported to affect the risk of fixation failure in cases of minimally displaced femoral neck fractures (Garden I-II). We investigated radiological risk factors of treatment failure.Patients and methods - We included 417 patients (68% women, median age: 78 years (50-108) with a minimally displaced femoral neck fracture (Garden I-II) treated with internal fixation in a retrospective cohort study. Read More

Exp Ther Med 2019 Jul 8;18(1):163-171. Epub 2019 May 8.

Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China.

The present study aimed to explore the potential of combined treatment with mesenchymal stem cells (MSCs) and danshen for angiogenesis and bone regeneration in a rabbit model of avascular necrosis of femoral head (ANFH). A rabbit model of ANFH was established using the Shwartzman reaction with methylprednisolone and Escherichia coli endotoxin injection. Magnetic resonance imaging (MRI) and histopathological examination were used to evaluate the rabbit model of ANFH. Read More

Radiologe 2019 Jul;59(7):647-662

Klinik für Diagnostische und Interventionelle Radiologie und Neuroradiologie, Universitätsklinikum Augsburg, Stenglinstraße 2, 86156, Augsburg, Deutschland.

Subchondral osteonecrosis of large weight-bearing joints (hip and knee joints) represents a severe and joint-threatening disease. Apart from idiopathic forms, glucocorticoid medication and alcohol abuse have been identified as major causative factors for atraumatic osteonecrosis. In addition to direct cytotoxic factors, a critically reduced perfusion of the subchondral osseous space will eventually lead to bone marrow ischemia and osseous necrosis. Read More