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avascular necrosis of hip

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https://www.readbyqxmd.com/read/29752504/duration-of-immobilization-after-developmental-dysplasia-of-the-hip-and-open-reduction-surgery
#1
Khaled Emara, Mohamed Ahmed Al Kersh, Fahad Abdulazeez Hayyawi
BACKGROUND: There is no consensus about the duration of post-operative immobilization in the treatment of DDH (developmental dysplasia of hip). Our aim in this study is to compare between two post-operative immobilization protocols for patients undergoing open reduction. MATERIALS AND METHODS: Thirty-eight hips in 32 patients assigned to group A were immobilized in hip spica for four weeks followed by abduction brace application which was gradually weaned through the periods of several months and 29 hips in 24 patients assigned to group B immobilized in hip spica for 12 weeks without further bracing...
May 11, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29727407/three-dimensional-mri-analysis-of-femoral-head-remodeling-after-reduction-in-patients-with-developmental-dysplasia-of-the-hip
#2
Yuta Tsukagoshi, Hiroshi Kamada, Makoto Kamegaya, Ryoko Takeuchi, Shogo Nakagawa, Yohei Tomaru, Kenta Tanaka, Mio Onishi, Tomofumi Nishino, Masashi Yamazaki
BACKGROUND: Previous reports on patients with developmental dysplasia of the hip (DDH) showed that the prereduced femoral head was notably smaller and more nonspherical than the intact head, with growth failure observed at the proximal posteromedial area. We evaluated the shape of the femoral head cartilage in patients with DDH before and after reduction, with size and sphericity assessed using 3-dimensional (3D) magnetic resonance imaging (MRI). METHODS: We studied 10 patients with unilateral DDH (all female) who underwent closed reduction...
May 2, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29716513/developmental-dysplasia-of-the-hip-addressing-evidence-gaps-with-a-multicentre-prospective-international-study
#3
Emily K Schaeffer, Ihdi Study Group, Kishore Mulpuri
There is a lack of high quality evidence available to guide clinical practice in the treatment and management of developmental dysplasia of the hip (DDH). Evidence has been limited by persistent confusion on diagnostic and classification terminology, variability in surgeon decision making and a reliance on single centre, retrospective studies with small patient numbers. To address gaps in knowledge regarding screening, diagnosis and management of DDH, the International Hip Dysplasia Institute began a multicentre, international prospective study on infants with hips dislocated at rest...
May 7, 2018: Medical Journal of Australia
https://www.readbyqxmd.com/read/29715363/hip-joint-contact-pressure-distribution-during-pavlik-harness-treatment-of-an-infant-hip-a-patient-specific-finite-element-model
#4
Behzad Vafaeian, Samer Adeeb, Marwan El-Rich, Dornoosh Zonoobi, Abhilash R Hareendranathan, Jacob L Jaremko
Developmental dysplasia of the hip (DDH) in infants under 6 months of age is typically treated by the Pavlik harness (PH). During successful PH treatment, a subluxed/dislocated hip is spontaneously reduced into the acetabulum, and DDH undergoes self-correction. PH treatment may fail due to avascular necrosis (AVN) of the femoral head. An improved understanding of mechanical factors accounting for the success/failure of PH treatment may arise from investigating articular cartilage contact pressure (CCP) within a hip during treatment...
July 1, 2018: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29698303/closed-reduction-osteotomy-and-fibular-graft-are-effective-in-treating-pediatric-femoral-neck-pseudarthrosis-after-infection
#5
Rajesh Kumar Kanojia, Sumit Gupta, Ajay Kumar, Bachha Kanakeya Reddy
BACKGROUND: When treatment of acute septic arthritis of the hip is delayed, severe sequelae can occur. This may take the form of coxa breva, vara, or valga. Pseudoarthrosis of the femoral neck is a rare complication with only a few studies to guide treatment. QUESTION/PURPOSES: In a small series of patients with pseudarthrosis of the femoral neck after acute septic arthritis, we wanted to determine (1) whether femoral neck union can be achieved using a variety of surgical approaches; (2) whether these patients satisfied criteria outlined by Hunka and Choi, defined as a stable hip, a flexion arc ≥ 70° and no fixed adduction or abduction contractures, fixed flexion deformity not more than 20°, pain relief, and restoration of activities of daily living after surgery; and (3) any treatment-related complications if observed...
April 23, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29691171/risk-adjustment-is-necessary-in-medicare-bundled-payment-models-for-total-hip-and-knee-arthroplasty
#6
P Maxwell Courtney, Daniel D Bohl, Edmund C Lau, Kevin L Ong, Joshua J Jacobs, Craig J Della Valle
BACKGROUND: Concerns exist that high-risk patients in alternative payment models may face difficulties with access to care without proper risk adjustment. The purpose of this study is to identify the effect of medical and orthopedic specific risk factors on the cost of a 90-day episode of care following total hip (THA) and knee arthroplasty (TKA). METHODS: We queried the Medicare 5% Limited Data Set for all patients undergoing primary THA and TKA from 2010 to 2014...
March 17, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29687316/bernese-type-triple-pelvic-osteotomy-through-a-single-incision-in-children-over-five-years-a-retrospective-study-of-twenty-eight-cases
#7
YiQiang Li, HongWen Xu, Theddy Slongo, QingHe Zhou, Yuanzhong Liu, WeiDong Chen, JingChun Li, Federico Canavese
INTRODUCTION: Bernese-type triple pelvic osteotomy (BTPO) combines periacetabular and triple innominate osteotomy techniques. However, studies that evaluate the clinical and radiographic outcomes of BTPO are scarce. The aim of this study is to report on the clinical and radiographic outcomes of ambulatory children with developmental dysplasia of the hip (DDH) or Legg-Calvé-Perthes disease (LCPD) managed with BTPO that were older than five years of age at the time of surgery. MATERIALS AND METHODS: We retrospectively reviewed the records of 27 consecutive patients with DDH or LCPD (mean age 7...
April 23, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29683475/pharmacological-interventions-for-the-prevention-of-insufficiency-fractures-and-avascular-necrosis-associated-with-pelvic-radiotherapy-in-adults
#8
REVIEW
Qurrat U van den Blink, Kate Garcez, Caroline C Henson, Susan E Davidson, Claire E Higham
BACKGROUND: Pelvic radiotherapy is a treatment delivered to an estimated 150,000 to 300,000 people annually across high-income countries. Fractures due to normal stresses on weakened bone due to radiotherapy are termed insufficiency fractures. Pelvic radiotherapy-related interruption of the blood supply to the hip is termed avascular necrosis and is another recognised complication. The reported incidences of insufficiency fractures are 2.7% to 89% and risk of developing avascular necrosis is 0...
April 23, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29681819/avascular-necrosis-of-bone-following-chemotherapy-in-cancer-patients-with-coagulopathy-report-of-two-cases
#9
Hui-Ching Hsu, Tzu-Yao Liao, Dave Wei-Chih Chen, Yu-Hsiang Juan, Chuang-Chi Liaw
We report 2 cases of patients with solid tumors and coagulopathy who experienced avascular necrosis (AVN) of the bone following chemotherapy. Both cases exhibited nontraumatic bilateral AVN of the femoral heads, and one also showed bilateral AVN of the humeral heads. One case had multiple thromboembolic complications, including pulmonary obstructive syndrome and paraneoplastic pain. The other showed multiple paraneoplastic syndromes, with hypercalcemia and thrombocytosis. Groin pain and claudication of the lower extremities developed and persisted...
January 2018: Case Reports in Oncology
https://www.readbyqxmd.com/read/29607863/total-hip-replacement-in-sickle-cell-disorder-a-preliminary-report-of-challenges-and-early-outcome-of-21-consecutive-patients
#10
A U Katchy, U E Anyaehie, C U Nwadinigwe, G O Eyichukwu
Objective: The aim of this study is to describe the pattern of presentation osteoarthritic patients with sickle cell disorder (SCD) in our environment, determine the implant sizes taking the peculiar nature of the pathology and our operating environment into consideration, highlight the challenges and technical difficulties encountered during the procedure, measure the functional outcome and observe complications of treatment, recommend ways of improving outcome. Patients and Methods: Between November 2008 and November 2012, 29 consecutive primary total hip replacements (THRs) were performed on 21 patients with avascular necrosis of the head of femur secondary to SCD...
April 2018: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29575173/vascular-supply-of-the-femoral-head-in-sheep-implications-for-the-ovine-femoroacetabular-impingement-model
#11
Moritz Tannast, Nadja Wolfer, Michael K Ryan, Katja M Nuss, Brigitte von Rechenberg, Simon D Steppacher
Sheep hips have a natural non-spherical head similar to a cam-type deformity in human beings. By performing an intertrochanteric varus osteotomy, cam-type femoroacetabular impingement can be induced experimentally. In sheep, the aspherical portion is located superiorly-exactly matching the region where the superior retinacular vessels enter the femoral head-neck junction in human beings. In order to fully exploit the potential of this experimental FAI model, a safe osteochondroplasty of the superior asphericity would need to be done without the risk of avascular necrosis...
March 25, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29570157/femoral-head-wedge-resection-for-the-treatment-of-avascular-necrosis-of-the-femoral-head-after-pediatric-femoral-neck-fracture-a-case-report
#12
Ha Yong Kim, Yong Han Cha, Won Sik Choy, Sang Wook Jeung, Yeon Seung Min
This research focuses on femoral head wedge resection for the treatment of avascular necrosis (AVN) of the femoral head. A 9-year-old girl presented to the emergency room complaining of right hip pain that occurred after a pedestrian car accident. After 8 months of internal fixation using cannulated screws for Delbet-type 2 fracture of the femoral neck, AVN of the femoral head developed in the patient. Even though valgus-derotation-extension intertrochanteric osteotomy was performed for the treatment of AVN, it progressed further and femoral head wedge resection was performed to recover the femoral head sphericity...
May 2018: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/29569139/bone-preserving-total-hip-arthroplasty-in-avascular-necrosis-of-the-hip-a-matched-pairs-analysis
#13
David Merschin, Richard Häne, Mersedeh Tohidnezhad, Thomas Pufe, Wolf Drescher
PURPOSE: Short-stem hip arthroplasty has the potential advantage of femoral bone stock preservation, especially in view of the expected revisions in the often relatively young patients. Despite short-stem hip prosthesis are increasingly used for total hip arthroplasty, there are no sufficient mid- and long-term results especially for patients with avascular femoral head osteonecrosis. The present study investigates mid-term functional results as well as the revision rate following implantation of a short-stem prosthesis...
March 22, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29564212/neglected-traumatic-hip-dislocation-influence-of-the-increased-intracapsular-pressure
#14
Elsayed Ibraheem Elsayed Massoud
AIM: To investigate that the increased intracapsular pressure, during the delay period, can interrupt the blood flow to the femoral head. METHODS: An observational retrospective study included a group of 17 patients with traumatic hip dislocation, their ages at time of injury averaged 26 (range from 3 to 70) years. Outcomes were assessed clinically and radiographically at a period averaged 11.5 (range from 4 to 20) years. RESULTS: Minor trauma caused dislocation in seven and severe trauma in ten patients...
March 18, 2018: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29536680/-treatment-of-pauwels-type-iii-femoral-neck-fractures-with-modified-percutaneous-compression-plate
#15
Ying-Zhou Li, Feng Ye, Lei Wan, Yong-Bo Yang, Yuan-Sheng Chen, Xiao Wang
OBJECTIVE: To investigate the preliminary effects of modified percutaneous compression plate in treating femoral neck fractures of Pauwels type III. METHODS: From March 2012 to March 2016, 35 patients with femoral neck fracture were treated by closed reduction and internal fixation with a modified percutaneous compression plate, including 21 males and 14 females with an average age of 45 years old ranging from 23 to 62 years old. The anatomical position of fracture was divided into 8 cases of lower head type, 27 cases of head and neck...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29533038/-arthroscopy-guided-core-decompression-and-bone-grafting-combined-with-selective-arterial-infusion-for-treatment-of-early-stage-avascular-necrosis-of-femoral-head
#16
Hao-Shan Guo, Yi-Jun Tian, Gang Liu, Long An, Zhan-Guo Zhou, Huan-Zhen Liu
OBJECTIVE: To observe the clinical effects of arthroscopy-guided core decompression and bone grafting combined with selective arterial infusion for early stage avascular necrosis of femoral head. METHODS: From January 2010 to December 2014, 76 patients(76 hips) diagnosed as Ficat II stage avascular necrosis of femoral head were randomly divided into experimental group and control group. In the experimental group, there were 27 males and 8 females aged from 24 to 55 years old with an average of (43...
January 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29528178/iliopsoas-hematoma-in-a-patient-with-sickle-cell-disease
#17
Benjamin Zielonka, Alan R Cohen, Kim Smith-Whitley, Bhavya S Doshi
Although musculoskeletal pain in patients with sickle cell disease (SCD) is most frequently the result of vaso-occlusive episodes, clinicians often consider other etiologies including osteomyelitis, avascular necrosis, and trauma. In this study, we report the case of a young female with SCD with hip and back pain secondary to a nontraumatic iliopsoas periosteal hematoma with evidence of adjacent bone infarction. The pathophysiology, diagnostic considerations, and management of periosteal hematomas in SCD are reviewed...
March 12, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29509237/do-the-trace-elements-play-a-role-in-the-etiopathogenesis-of-developmental-dysplasia-of-hip
#18
S Guner, S I Guner, M A Gokalp, M F Ceylan, S S Unsal, H Demir
OBJECTIVE: Alterations in the connective tissue of the hip joint capsule and ligaments might account for the increased laxity seen in patients with developmental dysplasia of the hip. The tensile features of the connective tissue depend on collagen. A number of prior studies have noted the association between the trace elements and collagen biosynthesis. The aim of this research is to determine whether there exists an association between the trace elements and developmental dysplasia of the hip...
February 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29484190/a-rare-case-of-avascular-necrosis-in-sickle-cell-trait-a-case-report
#19
William J Sanders
Background: Sickle cell trait is usually an asymptomatic presentation of a patient with slightly different hemoglobin molecule makeup than normal. It is similar to a more serious disease, sickle cell disease, in which a person's hemoglobin is mutated in such a way that causes their red blood cells to easily change shape in certain environmental and internal states; this causes red blood cells to adhere to the walls and occlude the lumen of the arteries in which they travel, leading to downstream effects secondary to ischemia...
2018: BMC Hematology
https://www.readbyqxmd.com/read/29477605/there-is-a-significant-discrepancy-between-big-data-database-and-original-research-publications-on-hip-arthroscopy-outcomes-a-systematic-review
#20
REVIEW
Kyle R Sochacki, Robert A Jack, Marc R Safran, Shane J Nho, Joshua D Harris
PURPOSE: The purpose of this study was to compare (1) major complication, (2) revision, and (3) conversion to arthroplasty rates following hip arthroscopy between database studies and original research peer-reviewed publications. METHODS: A systematic review was performed using PRISMA guidelines. PubMed, SCOPUS, SportDiscus, and Cochrane Central Register of Controlled Trials were searched for studies that investigated major complication (dislocation, femoral neck fracture, avascular necrosis, fluid extravasation, septic arthritis, death), revision, and hip arthroplasty conversion rates following hip arthroscopy...
February 21, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
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