65,435 results match your criteria Dislocation Wrist


Femoral Nerve Palsy With Concomitant Patellar Dislocation in a Ballet Dancer.

Orthopedics 2018 Dec 11:1-3. Epub 2018 Dec 11.

Femoral nerve palsy with concomitant patellar dislocation is a rare clinical entity that has not previously been well documented. The authors present the case of a 16-year-old female ballet dancer who sustained a patellar dislocation with concomitant femoral nerve palsy. She experienced muscle weakness after the initial injury and developed neuropathic symptoms through the anterior left thigh. Read More

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December 2018

Arthroscopic Superior Capsular Reconstruction for Dislocation of the Shoulder with an Irreparable Rotator Cuff Tear: A Case Report.

JBJS Case Connect 2018 Dec 12. Epub 2018 Dec 12.

Department of Orthopaedic Surgery, Showa University Hospital, Tokyo, Japan.

Case: A 49-year-old man presented with apprehension of a repeat dislocation after a left shoulder dislocation, which was accompanied by pain and restricted active range of motion of the shoulder. We performed an arthroscopic Bankart repair as well as an arthroscopic superior capsular reconstruction (ASCR) with fascia lata for the irreparable massive rotator cuff tear. Two years postoperatively, there was no shoulder pain or repeat dislocation; the range of motion had improved. Read More

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December 2018

Occult injuries of the contralateral sacroiliac joint in operatively treated pelvis fractures: incidence, root cause analysis, and proposal of treatment algorithm.

Int Orthop 2018 Dec 11. Epub 2018 Dec 11.

Department of Orthopaedics, Denver Health Medical Center, 777 Bannock Street, Denver, CO, 80204, USA.

Purpose: To determine the most common injury patterns, root cause, and the frequency with which unrecognized contralateral posterior ring injury occurs in patients presenting with surgically treated pelvic fractures.

Methods: The medical records of 73 patients presenting to our level I trauma center (52 male and 21 female patients; mean age 41.8 years; range 18-89 years) with surgically treated pelvic ring fractures between January 1, 2016 and January 1, 2018 were reviewed. Read More

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December 2018

Intraocular lens dislocation: a novel in-situ scleral refixation technique using a 25 Gauge trocar in the anterior chamber.

BMJ Open Ophthalmol 2018 23;3(1):e000174. Epub 2018 Nov 23.

Dipartimento Neuromuscoloscheletrico e Organi di Sensi, Università degli Study di Firenze, Florence, Italy.

Objective: Intraocular lens (IOL) repositioning using a closed-eye approach could be carried out in some selected cases. Our study focuses on the efficacy and safety of a IOL closed-eye repositioning technique using scleral suture, which is performed using a trocar as an intrastromal limbal guide.

Methods And Analysis: Thirty-one eyes of 31 patients with late IOL dislocation operated on between January 2015 and May 2017 were included in this retrospective non-comparative consecutive case series study. Read More

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November 2018

Application of the Guiding Template Designed by Three-dimensional Printing Data for the Insertion of Sacroiliac Screws: a New Clinical Technique.

Curr Med Sci 2018 Dec 7;38(6):1090-1095. Epub 2018 Dec 7.

Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.

This study is aimed to explore the clinical application of the guiding template designed by three-dimensional printing data for the insertion of sacroiliac screws. A retrospective study of 7 cases (from July 2016 to December 2016), in which the guiding template printed by the threedimensional printing technique was used for the insertion of sacroiliac screws of patients with posterior ring injuries of pelvis, was performed. Totally, 4 males and 3 females were included in template group, aged from 38 to 65 years old (mean 50. Read More

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December 2018

[Patellofemoral instability in children and adolescents].

Unfallchirurg 2018 Dec 7. Epub 2018 Dec 7.

AUVA Traumazentrum Wien, Standort Meidling, Kundratstr. 37, 1120, Wien, Österreich.

Dislocation of the patella is one of the most common knee injuries in childhood and adolescence. After detailed clinical and radiological clarification, conservative functional treatment with special orthotic devices is most commonly applied in patients with a primary dislocation without concomitant injuries; however, the redislocation rate after conservative treatment has been reported in the literature to be between 35% and 70%, depending on the risk factors present. Therefore, numerous surgical treatment options exist which are sometimes again associated with high redislocation rates and others can lead to early arthrosis of the patellofemoral joint when used indiscriminately. Read More

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December 2018

Return to activity following revision total hip arthroplasty.

Arch Orthop Trauma Surg 2018 Dec 7. Epub 2018 Dec 7.

Department of Orthopaedics, Royal Infirmary of Edinburgh, 51 Little France Crescent, Edinburgh, EH16 4SA, UK.

Background: Demand for revision total hip arthroplasty (RTHA) continues to grow worldwide and is expected to more than double within the next 1-2 decades. The primary aim of this study was to examine return to function following revision THA in a UK population.

Patients And Methods: We assessed 118 patients (132 RTHAs, mean age 65 years SD 13, range 23-88) at a mean follow-up of 7. Read More

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December 2018

One-stage Hip Reconstruction for Developmental Hip Dysplasia in Children over 8 Years of Age.

Hip Pelvis 2018 Dec 6;30(4):260-268. Epub 2018 Dec 6.

Department of Orthopaedic and Spine Surgery, Ghurki Trust Teaching Hospital, Lahore, Pakistan.

Purpose: This study was performed to assess the clinical and radiological outcomes following one-stage hip reconstruction, consisting of open reduction femoral shortening and pelvic osteotomy, for neglected developmental dislocation of the hip (DDH).

Materials And Methods: This is a retrospective analysis of 77 hips in 65 patients (46 females and 19 males; 12 had bilateral dislocations), operated at a Ghurki Trust Teaching Hospital in Pakistan between 2013 and 2015. The average age at surgery was 11. Read More

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December 2018

Functional Temporomandibular Joint Reconstruction in Costochondral Grafting of Micrognathia.

Plast Reconstr Surg Glob Open 2018 Oct 2;6(10):e1925. Epub 2018 Oct 2.

Department of Plastic and Reconstructive Surgery, Osaka Medical College, Takatsuki, Japan.

Rib bone and costochondral complex grafting has been used to treat micrognathia classified as Pruzansky type III. To acquire more physiological joint movement, we reconstructed a temporomandibular joint with the glenoid fossa in addition to the mandibular ramus. The patient underwent a tracheostomy to correct her airway obstruction at 2 months of age. Read More

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October 2018
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Subscapularis Repair Is Unnecessary After Lateralized Reverse Shoulder Arthroplasty.

JB JS Open Access 2018 Sep 12;3(3):e0056. Epub 2018 Jul 12.

Mayo Clinic Arizona, Phoenix, Arizona.

Background: Controversy exists as to whether the subscapularis should be repaired after reverse shoulder arthroplasty. The purpose of the present study was to evaluate the utility of repairing the subscapularis after reverse shoulder arthroplasty with regard to complications, objective findings, and patient-reported outcome measures.

Methods: We retrospectively reviewed the records for 99 patients who had undergone a lateralized reverse shoulder arthroplasty with (n = 58) or without (n = 41) subscapularis repair. Read More

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September 2018

Indication for CT following index finger metacarpophalangeal joint dislocation - A case report.

Trauma Case Rep 2018 Dec 27;18:31-36. Epub 2018 Nov 27.

Royal Alexandra Hospital, Corsebar Road, Paisley PA2 9PN, Scotland, United Kingdom.

Currently Kaplan's criteria on examination are used as the gold standard diagnostic tool for complex dorsal dislocations of the index finger Metacarpophalangeal joint. Our case report reveals a situation when the diagnosis was obscure and when conventional X-rays were not beneficial. With the use of CT imaging we were able to confirm the diagnosis of complex dorsal dislocation of the index finger Metacarpophalangeal joint and also reveal multiple other injuries. Read More

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December 2018

Dataset illustrating the construction of dislocations and running dislocation dynamics using the periodic array of dislocation quadrupoles in FCC Al.

Data Brief 2018 Dec 13;21:2122-2124. Epub 2018 Nov 13.

National Research Center "Kurchatov Institute", 123182 Moscow, Russia.

The data illustrates the process of creation of dislocation quadrupoles in FCC Al. The density of dislocations in our data is 3.8 × 10 m which is the lowest published to date and is comparable to the density of dislocations in real crystals. Read More

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December 2018

Open Anatomic Coracoclavicular Ligament Reconstruction by Modified Conjoint Tendon Transfer for Treatment of Acute High-Grade Acromioclavicular Dislocation.

Authors:
Naser M Selim

Arthrosc Tech 2018 Nov 15;7(11):e1157-e1165. Epub 2018 Oct 15.

Knee Surgery-Arthroscopy and Sports Injuries Unit, Orthopedic Department, Faculty of Medicine, Mansoura University Hospital, Mansoura, Egypt.

There is no ideal surgical technique for the treatment of acromioclavicular (AC) dislocations. Reconstruction of the coracoclavicular ligaments (CCLs) for the treatment of AC dislocations is evolving. Many techniques for CCL reconstruction have been described. Read More

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November 2018

Thoracic spine dislocation in Gorham-Stout Syndrome: Case report and literature review.

Surg Neurol Int 2018 1;9:223. Epub 2018 Nov 1.

Spanish Hospital, Mendoza, Argentina.

Background: The Gorham-Stout syndrome (GSS), also known as phantom bone disease, is a rare bone condition of unknown etiology. Involvement of the spine is described in <50 cases in the literature. Here, we report a case of thoracic spine fracture dislocation in a young female who was known to have GSS. Read More

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November 2018

Combined Ipsilateral Humeral Shaft and Galeazzi Fractures Creating a Floating Elbow Variant.

Case Rep Orthop 2018 8;2018:7430297. Epub 2018 Nov 8.

Department of Orthopaedic Surgery, New York-Presbyterian Hospital, New York, USA.

"Floating elbow" injuries of the arm traditionally represent a combination of humeral shaft and forearm fractures which require anatomic rigid open reduction and internal fixation of all fractures to allow for early range of motion exercises of the elbow. There are published variants of the floating elbow injury which include ipsilateral diaphyseal humeral fracture, proximal ulna fracture with proximal radioulnar joint disruption, and ipsilateral diaphyseal humeral fracture with elbow dislocation and both bones forearm fracture. We present the case of a 21-year-old woman whose left arm became caught between the side of a waterslide and adjacent rocks at a park. Read More

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November 2018

CRNC4: Management of Spontaneous Dislocation and Headache Attributed to TMD Using Stabilization Splint: Case Report.

J Indian Prosthodont Soc 2018 Oct;18(Suppl 1):S46-S47

Department of Prosthodontics Faculty of Dentistry, Universitas Sumatera Utara, Medan 20155, Indonesia.

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October 2018

Pure Medial Elbow Dislocation without Concomitant Fracture in a 10-Year-Old Child.

Indian J Orthop 2018 Nov-Dec;52(6):678-681

Department of Radiology, Kokilaben Dhirubhai Ambani Hospital and Medical Research Centre, Mumbai, Maharashtra, India.

Pediatric elbow dislocations are rare injuries and are often accompanied by concomitant fractures. We report a rare case of medial dislocation of the right elbow without accompanying fracture in a 10.5-year-old boy after fall from a bicycle. Read More

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December 2018

A Comparative Study of Conservative Functional Treatment versus Acute Ligamentous Repair in Simple Dislocation of the Elbow in Adults.

Indian J Orthop 2018 Nov-Dec;52(6):584-589

Department of Trauma Surgery, University Hospital Brno, Brno, Czech Republic.

Background: Elbow dislocation is the second most frequent type of large joint dislocations in adults. Standard treatment of simple elbow dislocation (SED) without manifestation of instability includes closed reduction, short-term immobilization of the elbow followed by functional aftercare. This study evaluates SED treatment, comparing outcomes of conservative functional treatment and surgical therapy. Read More

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December 2018
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Cervical Open-Door Laminoplasty by Hydroxyapatite Implant Insertion Without Suturing.

Neurospine 2018 Oct 7. Epub 2018 Oct 7.

Department of Neurosurgery, Shizuoka General Hospital, Shizuoka, Japan.

Objective: To assess the efficacy of cervical open-door laminoplasty by hydroxyapatite implant insertion between the lamina and the lateral mass without suturing.

Methods: All patients who underwent cervical open-door laminoplasty with C2/C7 undermining and insertion of hydroxyapatite implants from C3 to C6 were retrospectively evaluated for surgical time and neurological outcomes according to the Japanese Orthopaedic Association (JOA) score. To assess the alignment of the cervical spine and postoperative cervical pain, the C2-7 angle and a visual analogue scale score were used, respectively. Read More

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October 2018

Chronic Monteggia.

Curr Opin Pediatr 2018 Dec 6. Epub 2018 Dec 6.

Pontifícia Universidade Católica do Paraná, Brasil.

Purpose Of Review: The chronic Monteggia may lead to pain, mobility limitation, progressive valgus deformity, lateral elbow instability, late ulnar nerve paralysis, and degenerative changes. In this review, we discuss the current procedures in the literature focused on correcting chronic Monteggia to avoid these complications.

Recent Findings: Correction of the ulnar deformity with elongation and angulation of the ulna in the opposite direction of the dislocation of the radial head is the most important factor for the reduction and consequent preservation of the radial head. Read More

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December 2018

Fatal atlantoaxial dislocation due to an odontoid synchondrosis fracture in a child with chromosome 9 abnormality: A case report.

J Forensic Leg Med 2018 Nov 29;61:92-96. Epub 2018 Nov 29.

Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba city, Chiba Prefecture, 260-8670, Japan; Department of Forensic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.

A 5-year-old boy with a chromosome-9 abnormality and multiple external and visceral malformations was found in cardiopulmonary arrest during a regular visit to the hospital; he did not respond to cardiopulmonary resuscitation and died. An odontoid process fracture and calcification and fibrosis of the muscles around the superior cervical vertebra were observed during the autopsy. Postmortem computed tomography revealed an anterior dislocation of the atlas; odontoid synchondrosis fracture; and delayed, incomplete bony fusion of the odontoid process relative to his age. Read More

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November 2018

Does Prior Bariatric Surgery Improve Outcomes Following Total Joint Arthroplasty in the Morbidly Obese? A Meta-Analysis.

J Arthroplasty 2018 Nov 20. Epub 2018 Nov 20.

Department of Articular Orthopaedics, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, People's Republic of China.

Background: There remains a controversy regarding the risks in subsequent total joint arthroplasty (TJA) with and without previous bariatric surgery (BS). We performed a meta-analysis based on the current evidence-based study to determine the influences of prior BS on the short-term and long-term outcomes following TJA.

Methods: From the inception to July 2018, the EMBASE, PubMed, Web of Science, and Cochrane Library electronic databases were searched for all relevant English language trials. Read More

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November 2018

The Elbow Technique: A Novel Reduction Technique for Anterior Shoulder Dislocations.

J Emerg Med 2018 Dec 6. Epub 2018 Dec 6.

Department of Orthopaedic Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Orthopaedics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.

Background: Anterior dislocation of the glenohumeral joint is a common upper extremity injury in orthopedic and emergency medicine. The aim of this study was to introduce a novel reduction technique, "elbow technique," for anterior shoulder dislocations.

Discussion: This study included 26 patients with anterior shoulder dislocation who were treated using the elbow technique in our hospital's emergency department between October 2014 and December 2015. Read More

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December 2018

First Report of an Acute, Obstructive Thrombosis of a Melody Valve Used for Transcatheter Pulmonary Replacement.

Can J Cardiol 2018 Dec 20;34(12):1688.e13-1688.e15. Epub 2018 Aug 20.

Department of Cardiology and Internal Intensive Medicine, Kepler University Hospital, Medical Faculty, Johannes Kepler University, Linz, Austria.

Transcatheter pulmonary valve (TPV) replacement is an effective therapy of right ventricular outflow tract conduit dysfunction. Acute complications after TPV implantation include infective endocarditis, stent fracture, and device dislocation. We present a novel, life-threatening complication: an acute, noninfectious TPV thrombosis. Read More

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December 2018

Does routinely repairing deltoid ligament injuries in type B ankle joint fractures influence long term outcomes?

Injury 2018 Dec;49(12):2312-2317

Department of Orthopedic Trauma, Beijing Jishuitan Hospital, Beijing, 100035 China.

Deltoid ligament reconstruction following type B ankle fractures continues to generate a vivid discussion amongst trauma surgeons. There is a difference of opinion as to whether operative or non operative treatment should prevail. We therefore conducted a prospective comparative cohort study to determine whether it is necessary to routinely repair the injured deltoid ligaments. Read More

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December 2018
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Age matters when comparing hemiarthroplasty and total hip arthroplasty for femoral neck fractures in Medicare patients.

Hip Int 2018 Dec 11:1120700018816924. Epub 2018 Dec 11.

Department of Orthopaedic Surgery, University of North Carolina, Chapel Hill, NC, USA.

Introduction:: The optimal treatment of patients with a displaced intracapsular femoral neck fracture remains controversial. We utilised a national database of Medicare patients to determine if there was any difference in complications and reoperation rate of patients undergoing total hip arthroplasty (THA) or hemiarthroplasty (HA) for femoral neck fractures.

Methods:: This study utilised the PearlDiver Patient Records Database, a national for-fee database of Medicare patient procedure and diagnosis records from 2005 to 2012. Read More

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December 2018

It's Not All About Redislocation: A Systematic Review of Complications After Anterior Shoulder Stabilization Surgery.

Am J Sports Med 2018 Dec 10:363546518810711. Epub 2018 Dec 10.

Royal Devon and Exeter Hospital, Exeter, UK.

Background:: The surgical treatment of recurrent shoulder instability has evolved in recent years to include a variety of soft tissue and bone block procedures, undertaken with either an open or arthroscopic approach. Although the utilization of such techniques has rapidly expanded, the associated risk of complications remains poorly defined. This information is vital for clinical decision making and patient counseling. Read More

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December 2018

Strengthening Mechanism of a Single Precipitate in a Metallic Nanocube.

Nano Lett 2018 Dec 11. Epub 2018 Dec 11.

Nano-precipitates play a significant role in the strength, ductility and damage tolerance of metallic alloys through their interaction with crystalline defects, especially dislocations. However, the difficulty of observing the action of individual precipitates during plastic deformation has made it challenging to conclusively determine the mechanisms of the precipitate-defect interaction for a given alloy system, and presents a major bottleneck in the rational design of nanostructured alloys. Here we demonstrate the in situ compression of core-shell nanocubes as a promising platform to determine the precise role of individual precipitates. Read More

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December 2018

Ultrasound-guided quadratus lumborum plane block for congenital hip dislocation surgery: Dermatomes and osteotomes.

J Clin Anesth 2018 Nov 30;54:140. Epub 2018 Nov 30.

Anesthesiology Institute, Outcomes Research Department, Cleveland Clinic, Cleveland, OH, USA. Electronic address:

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November 2018

Augmented External Fixation of Ulnar Carpometacarpal Joint Fracture Dislocations.

Tech Hand Up Extrem Surg 2018 Nov 30. Epub 2018 Nov 30.

Cleveland Clinic.

Ulnar-sided carpometacarpal (CMC) joint fracture dislocations are relatively uncommon, frequently associated with fractures of the metacarpal base and/or hamate, and often sustained by young male individuals secondary to striking a hard object. The complexity of ulnar-sided CMC fracture dislocations necessitates careful restitution of anatomic alignment and joint congruency for mobility and stability. Miniaturization of the external fixation device has allowed application to the hand. Read More

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November 2018
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Biomechanical comparison of three kinds of fixation in fracture-dislocation of the sacroiliac joint.

Technol Health Care 2018 Nov 15. Epub 2018 Nov 15.

Background: Although there are several different kinds of fixation techniques for the sacroiliac fracture-dislocation, the treatment remains a challenge for orthopedic surgeons.

Objective: The purpose of this study was to compare the stability of sacroiliac fracture-dislocation fixed with two iliosacral (IS) screws, tension band plate (TBP), and minimally invasive adjustable plate (MIAP).

Methods: Five human cadavers (L4-pelvic-femora) were used to compare biomechanical stability. Read More

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November 2018

Magnetic resonance imaging for common peroneal nerve injury in trauma patients: Are routine knee sequences adequate for prediction of outcome?

J Med Imaging Radiat Oncol 2018 Dec 3. Epub 2018 Dec 3.

Department of Radiology, The Royal Melbourne Hospital, The University of Melbourne, Melbourne, Victoria, Australia.

Introduction: Common peroneal nerve (CPN) injury occurs in 10-40% of patients following knee dislocation. Is magnetic resonance imaging (MRI) using routine knee protocols able to adequately evaluate CPN injury and predict long-term outcome?

Methods: Trauma patients presenting for knee MRI at a single public hospital, between July 2007 and May 2017, were retrospectively identified using radiology and orthopaedic databases. Medical records were retrieved for clinical scores. Read More

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December 2018
6 Reads

Factors Affecting Tibial Tuberosity-Trochlear Groove Distance in Recurrent Patellar Dislocation.

Clin Orthop Surg 2018 Dec 21;10(4):420-426. Epub 2018 Nov 21.

Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun, Korea.

Background: The tibial tuberosity-trochlear groove (TT-TG) distance is used to determine the necessity of tibial tubercle osteotomy. We conducted this study to determine the extent to which each of the tibial tuberosity lateralization, trochlear groove medialization, and knee rotation angle affects the TT-TG distance in both normal and patella dislocated patients and thereby scrutinize the rationale for tuberosity transfer based on the TT-TG distance.

Methods: Retrospective analysis of rotational profile computed tomography was done for patella dislocated and control group patients. Read More

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December 2018
1 Read

Associated Injuries Are Frequent and Severe Among Geriatric Patients With Zygomatico-Orbital Fractures.

J Oral Maxillofac Surg 2018 Nov 5. Epub 2018 Nov 5.

Professor, Department of Oral and Maxillofacial Diseases, Institute of Dentistry, University of Turku and Turku University Hospital, Turku, Finland.

Purpose: Associated injuries (AIs) are hypothesized to be frequent in geriatric zygomatico-orbital (ZMO) fractures. The study aim was to determine the relation between ZMO fractures and AIs in geriatric patients compared with younger adult patients.

Patients And Methods: A retrospective case-and-control study was carried out on geriatric patients at least 65 years of age (n = 93) and younger adult patients 20 to 30 years of age (n = 68) diagnosed with pure unilateral ZMO fractures. Read More

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November 2018

Total knee arthroplasty in a patient with nail-patella syndrome (NPS).

Knee 2018 Nov 29. Epub 2018 Nov 29.

Houston Methodist Othopedics & Sports Medicine, Houston, TX, United States of America. Electronic address:

Nail-patella syndrome (NPS) or hereditary onycho-osteodyaplasia is a rare genetic condition involving a mutation in the LMX1B gene affecting nails, elbows, knees, and pelvis. Due to the regulatory functions of the gene in many developmental processes through the body, patients with NPS experience wide-ranging musculoskeletal problems including patellar instability, fingernail anomalies, iliac exostoses/horns, and elbow abnormalities. The patellar changes often involve aplasia, hypoplasia, and chronic dislocation. Read More

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November 2018
1 Read

Incidence of posterior shoulder instability and trends in surgical reconstruction: a 22-year population-based study.

J Shoulder Elbow Surg 2018 Nov 30. Epub 2018 Nov 30.

Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, Rochester, MN, USA. Electronic address:

Background: The incidence of posterior shoulder instability (PSI) in the general population is not well defined. This study aimed to define the population-based incidence of PSI and describe trends in incidence and surgery rates.

Methods: The study population included 143 patients (16 females, 127 males) diagnosed with new-onset PSI between January 1, 1994, and December 31, 2015. Read More

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November 2018
2 Reads

Persistent morbidity after Medial Patellofemoral Ligament Reconstruction - A registry study with an eight-year follow-up on a nationwide cohort from 1996 to 2014.

Knee 2018 Nov 28. Epub 2018 Nov 28.

Dept. of Orthopedic Surgery, Clinical Orthopedic Research Hvidovre (CORH), Copenhagen University Hospital Hvidovre, Denmark. Electronic address:

Background: To evaluate the trends in treatment of patellar dislocation in the Danish population as a whole from 1996 to 2014 and evaluate the incidence of persistent morbidity after Medial Patellofemoral Ligament Reconstruction (MPFL-R).

Methods: This epidemiological study was performed by retrospectively searching the Danish National Patients Registry from 1996 to 2014. The study investigated the trends in surgery performed on patients with patellar dislocations and the risk of persistent patellar morbidity (PPM) with an eight-year follow-up. Read More

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November 2018

Longevity in electron optics- Introduction to the Howie-Colliex-Lichte birthday issue.

Authors:
P W Hawkes

Ultramicroscopy 2018 Nov 8. Epub 2018 Nov 8.

CEMES-CNRS, B.P. 94347, 31055, Toulouse Cedex, France. Electronic address:

In 2019, Howie reaches the age of 85 and Colliex and Lichte, 75. Some moments in their scientific careers are evoked and their contributions to the theory of electron imaging, EELS and STEM and electron holography are recalled. Poetry, photography and music are not forgotten and nor are their families. Read More

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November 2018

Immobilization in external rotation after primary shoulder dislocation reduces the risk of recurrence in young patients. A randomized controlled trial.

Orthop Traumatol Surg Res 2018 Nov 27. Epub 2018 Nov 27.

Department of orthopaedic surgery, CHU de Québec, hôpital Enfant-Jésus, 1401, 18(e) rue, G1J 1Z4 Québec, Canada; Centre de recherche FRQS du CHU de Québec, hôpital Enfant-Jésus, 1401, 18(e) rue, G1J 1Z4 Québec, Canada. Electronic address:

Introduction: Patients that sustain anterior shoulder dislocation frequently experience recurrence. Immobilisation in external rotation has been proposed as a treatment that could lower this risk.

Hypothesis: There is a difference in recurrence rates between immobilization in internal or external rotation following a first-time anterior shoulder dislocation. Read More

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November 2018
1 Read

Isolated Partial Intra-Articular Volar Ulnar Fractures of the Distal Radius: The Tetrahedron Variant.

J Hand Surg Am 2018 Nov 27. Epub 2018 Nov 27.

Hand and Elbow Section, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL.

Purpose: The aim of this study was to assess the treatment and complications of a distinct type of partial intra-articular distal radius fracture.

Methods: Seven patients treated by the senior author between 2008 and 2013 for a partial intra-articular distal radius fracture with isolated involvement of the volar lunate facet were included. All fragments had the distinctive shape of a triangular-base pyramid (tetrahedron) extending from the metaphysis distally. Read More

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November 2018
2 Reads

Effect of Temperature on Deformation and Fracture Behaviour of Nanostructured Polycrystalline Ni Under Tensile Hydrostatic Stress by Molecular Dynamics Simulation.

J Nanosci Nanotechnol 2019 May;19(5):2723-2731

School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.

Real materials have structural defects that are normally brought in during the processes of manufacturing and storage and often have a structure with abundant grains, as well as being subjected to multi-directional force conditions. The study of temperature's effect on plastic deformation mechanisms in polycrystalline materials bathed by a multi-axial force is still very rare and not clear. Therefore, we conducted very large-scale molecular dynamics simulations to study the deformation and fracture behaviour of nanostructured polycrystalline Ni under a pre-existing external tensile hydrostatic stress with various temperatures. Read More

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CORR Insights®: Acetabular Retroversion and Decreased Posterior Coverage Are Associated With Sports-related Posterior Hip Dislocation in Adolescents.

Authors:
Mia S Hagen

Clin Orthop Relat Res 2018 Nov 27. Epub 2018 Nov 27.

M. S. Hagen, Assistant Professor, University of Washington, Department of Orthopaedics & Sports Medicine, Seattle, WA, USA.

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November 2018

Posteromedial Elbow Dislocations without Relevant Osseous Lesions: Clinical Characteristics, Soft-Tissue Injury Patterns, Treatments, and Outcomes.

J Bone Joint Surg Am 2018 Dec;100(23):2066-2072

Department of Orthopedic Surgery, Gumi CHA University Hospital, Gumi, South Korea.

Background: Although simple posterolateral or posterior elbow dislocations are relatively common and usually stable after closed reduction, simple posteromedial dislocations are extremely rare and poorly characterized. We investigated the clinical characteristics, soft-tissue injury patterns, treatments, and outcomes of a series of posteromedial elbow dislocations without relevant osseous lesions.

Methods: We retrospectively reviewed 20 cases of simple posteromedial elbow dislocations without relevant osseous lesions that were treated at 7 fellowship training hospitals during a 10-year period. Read More

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December 2018
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Percutaneous lead extraction and repositioning: An effective and safe therapeutic strategy for early ventricular lead perforation with dislocation both inside and outside the pericardial sac following a cardiac device implantation.

J Cardiovasc Electrophysiol 2018 Dec 5. Epub 2018 Dec 5.

Department of Cardiology, Hippokration General Hospital, 114 Vasilisis Sofias str, Athens, Greece.

Introduction: Cardiac perforation of the right ventricle associated with pacemaker or implantable cardioverter-defibrillator (ICD) leads' implantation is an uncommon, albeit potentially life-threatening, complication. The aim of this study is to further identify the optimal therapeutic strategy especially when lead dislocation has occurred outside the pericardial sac.

Methods And Results: The study population included 10 consecutive patients (6 female, mean age: 66. Read More

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December 2018

Cyclic Deformation and Correspondent Crack Initiation at Low-Stress Amplitudes in Mg⁻Gd⁻Y⁻Zr Alloy.

Materials (Basel) 2018 Nov 30;11(12). Epub 2018 Nov 30.

Key Laboratory of Deep Earth Science and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, China.

Cyclic deformation at low-stress amplitudes of a rare earth-containing magnesium alloy (Mg⁻Gd⁻Y⁻Zr) was investigated with emphasis on the responsible microstructural relationship between deformation mechanism and fatigue crack initiation. The results show that the microstructural deformation is extremely inhomogeneous at the low-stress amplitudes. Both deformation twinning and non-basal slip are barely observed, and basal slip is the predominant deformation to accommodate micro-plasticity. Read More

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November 2018

Effect of High-Pressure Torsion on Structure and Properties of Ti-15Mo/TiB Metal-Matrix Composite.

Materials (Basel) 2018 Nov 30;11(12). Epub 2018 Nov 30.

Laboratory of Bulk Nanostructured Materials, Belgorod State University, Belgorod 308015, Russia.

The microstructure and microhardness evolution of a Ti-15(wt.%)Mo/TiB metal-matrix composite (MMC) during high-pressure torsion (HPT) at 400 °C was studied. The composite was fabricated by spark plasma sintering of a Ti, Mo and TiB₂ powders mixture at 1200 °C. Read More

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November 2018

A genome-wide association study identifies new genes associated with developmental dysplasia of the hip.

Clin Genet 2018 Dec 3. Epub 2018 Dec 3.

State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China.

Developmental dysplasia of the hip (DDH) is one of the most common congenital malformations and covers a spectrum of hip disorders from mild dysplasia to irreducible dislocation. The pathological mechanisms of DDH are poorly understood, which hampers the development of diagnostic tools and treatments. To gain insight into its disease mechanism, we explored the potential biological processes that underlie DDH by integrating pathway analysis tools and performing a genome-wide association study (GWAS). Read More

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December 2018
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Joint reconstruction using sternocleidomastoid tendon autograft as a treatment for traumatic posterior dislocation of sternoclavicular joint: A case report.

Trauma Case Rep 2018 Dec 23;18:8-16. Epub 2018 Nov 23.

Department of Orthopaedic & Traumatology, Cipto Mangunkusumo General Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia.

Introduction: Posterior sternoclavicular joint dislocations are extremely rare and emergent injuries.

Presentation Of Case: We presented a case of a seventeen-year-old male patient who was diagnosed with traumatic posterior dislocation. He underwent joint reconstruction using sternocleidomastoid tendon autograft, and the operation went well. Read More

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December 2018
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Postoperative redislocation of the hip in a patient with congenital insensitivity to pain with anhidrosis: A case report and review of literature.

World J Clin Cases 2018 Nov;6(14):836-841

The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214000, Jiangsu Province, China.

Pelvic osteotomy is commonly used to adjust acetabula dysplasia for congenital dislocation of the hip, whereas congenital insensitivity to pain with anhidrosis (CIPA) is a rare hereditary disease that often has the characteristics of joint development deformity and easy fracture. This article reports the case involving a CIPA patient who was surgically treated by Chiari pelvic osteotomy and proximal femoral rotation osteotomy for congenital dislocation of the left hip joint and was provided long-term follow-up for redislocation and bilateral femoral head absorption. Read More

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November 2018

High-Energy Transsyndesmotic Ankle Fracture Dislocation: A Case Report and Systematic Literature Review.

Case Rep Orthop 2018 28;2018:7902641. Epub 2018 Oct 28.

Department of Orthopaedic Surgery, Southwest Hospital, The Army Military Medical University, Chongqing, Chongqing 400038, China.

High-energy trauma can cause transsyndesmotic ankle fracture dislocation. These fractures are quite rare. Here we present a clinical case of a male patient with this type of injury. Read More

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October 2018