Search Our Scientific Publications & Authors

Musculoskelet Surg 2018 Dec 10. Epub 2018 Dec 10.

ICATME, Hospital Universitari Quiron-Dexeus, Carrer Sabino de Arana, 5-19, 08028, Barcelona, Spain.

Background: Elongation in patients with achondroplasia provides better overall skeletal proportionality and significantly improves such individuals' access to their perineal region to self-manage personal hygiene. This paper describes our surgical technique and outcomes for bilateral humeral lengthening in achondroplasia patients over 26 years.

Methods: Ours was a retrospective study of 55 patients with achondroplasia-related short stature, in whom bilateral humeral lengthening was performed from 1990 to 2016. Read More

Int J Sports Phys Ther 2018 Dec;13(6):1049-1060

Ithaca College, Ithaca, NY, USA.

Background And Purpose: There have been few published studies regarding the treatment of patients with non-ossifying fibromas (NOFs), either conservatively or operatively. The purpose of this case report is to discuss the clinical presentation and conservative management of a teenage athlete diagnosed with a proximal humerus NOF.

Case Description: The subject was a 13-year-old male middle school student with a diagnosis of left shoulder pain over the prior year preventing him from participating in sports activities. Read More

EJVES Short Rep 2018 22;41:19. Epub 2018 Nov 22.

Oxford University Hospitals NHS Foundation Trust, UK.

Biomed Res Int 2018 6;2018:4535031. Epub 2018 Nov 6.

Department of Anatomy, College of Medicine, Chung-Ang University, Seoul, Republic of Korea.

The aim of this study was to accurately identify the distribution of sensory nerve branches running to bursa with mesoscopic dissection and boundaries following the injection of gelatin into the bursa. Eighteen shoulders of 11 Korean soft cadavers (average age, 65 years; age range, 43 - 88 years) were dissected. The most prominent point of greater tubercle of the humerus (GT) was used as a reference point. Read More

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

PLoS One 2018 11;13(12):e0208895. Epub 2018 Dec 11.

Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.

Dysphagia is the major pathophysiologic mechanism leading to aspiration pneumonia in the elderly. Elderly people with dysphagia who show low levels of the cough peak flow (CPF) are at greater risk for aspiration pneumonia. It has been reported that CPF values were significantly lower in the "soft" versus "hard" mode of a pressure-relieving air mattress in healthy volunteers in a supine position. Read More

Can Vet J 2018 Dec;59(12):1299-1304

School of Veterinary Studies, University of Bristol, Langford House, Langford, Bristol, UK (Longley, Langley-Hobbs); Veterinary Specialist Group, 97 Carrington Road, Mount Albert 1003, Auckland, New Zealand (Chase); Royal Veterinary College, Hawkshead Campus, Hawkshead Lane, Hatfield, Hertfordshire, UK (Calvo); University of Edinburgh, Royal Dick School of Veterinary Studies, Easter Bush, Midlothian, UK (Hall); Davies Veterinary Specialists, Higham Gobion, Hertfordshire, UK (Farrell).

Retrospective analysis of case records from dogs and cats diagnosed with supracondylar or distal diaphyseal humeral fractures was performed. Complications were compared and outcome was assessed at final follow-up and by owner questionnaire. A total of 37 cases (25 dogs and 12 cats) were included. Read More

Angiol Sosud Khir 2018 ;24(4):64-68

Central Hospital of the Ministry of Internal Affairs of the Republic of Uzbekistan, Tashkent, Uzbekistan.

Presented herein are the results of treatment of five 63-to-72-year-old patients (four men and one woman) with critical upper limb ischaemia, which is one of rarely encountered pathologies. All patients suffered from type 2 diabetes mellitus. Two of them had end-stage renal disease (ESRD) and for 2 years were on haemodialysis. Read More

J Pediatr Orthop 2018 Dec 6. Epub 2018 Dec 6.

Texas Scottish Rite Hospital for Children, Dallas, TX.

Background: Either casting or in situ fixation (to prevent displacement) are recommended for minimally displaced pediatric lateral condyle fractures of indeterminate stability with ≤2 mm lateral displacement and narrowed fracture extension to the epiphyseal articular cartilage. This study compares casting only, acute prophylactic in situ pinning, and surgery if casting fails due to displacement.

Methods: In total, 738 fractures at a level 1 trauma center between 2008 and 2014 were reviewed. Read More

Hand Surg Rehabil 2018 Dec 5. Epub 2018 Dec 5.

CHRU de Tours, hôpital Trousseau, services d'orthopédie 1 et 2, unité de chirurgie de la main et du membre supérieur, 37044 Tours cedex 9, France. Electronic address:

High radial palsy is primarily associated with humeral shaft fractures, whether primary due to the initial trauma, or secondary to their treatment. The majority will spontaneously recover, therefore early surgical exploration is mainly indicated for open fractures or if ultrasonography shows severe nerve damage. Initial signs of nerve recovery may appear between 2 weeks and 6 months. Read More

J Shoulder Elbow Surg 2018 Dec 5. Epub 2018 Dec 5.

Department of Orthopedics, Tianjin Hospital, Tianjin University, Tianjin, China.

Background: Proximal humeral fractures represent the third most common fragility fracture treated in osteoporotic populations, after hip and distal radial fractures. The purpose of this study was to characterize the spatial variability in cortical geometry in the proximal humerus in postmenopausal women.

Methods: The proximal humeri in 43 healthy postmenopausal women were imaged by computed tomography. Read More

J Shoulder Elbow Surg 2018 Dec 4. Epub 2018 Dec 4.

Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA. Electronic address:

Background: Chronic massive rotator cuff tears heal poorly and often retear. This study investigated the effect of adipose-derived stem cells (ADSCs) and transforming growth factor-β3 (TGF-β3) delivered in 1 of 2 hydrogels (fibrin or gelatin methacrylate [GelMA]) on enthesis healing after repair of acute or chronic massive rotator cuff tears in rats.

Methods: Adult male Lewis rats underwent bilateral transection of the supraspinatus and infraspinatus tendons with intramuscular injection of botulinum toxin A (n = 48 rats). Read More

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

Injury 2018 Dec 3;49 Suppl 4:S43-S47. Epub 2018 Dec 3.

Department of Orthopaedics and Traumatology, Di Venere Hospital, Bari, Italy.

Nonunion of the humeral shaft occurs in 2%-10% of nonsurgically treated fractures and in up to 15% of fractures treated by primary open reduction and internal fixation. Gunshot humerus shaft fractures are a frequent type of injury; the degree of comminution and bone loss, as well as soft tissue disruption may influence the healing process, causing major sequelae with loss of function. Here we describe a 30 years old midshaft nonunion of the humerus, that occurred in a young woman after a gunshot. Read More

Injury 2018 Dec;49(12):2161-2166

University of Edinburgh, Royal Infirmary of Edinburgh, Little France, Edinburgh, EH 16 4SU, United Kingdom.

Introduction: It is accepted that the incidence of fractures in patients aged ≥ 65 years is increasing but little is known about which fractures are becoming more common in this group of patients. Virtually all research has concentrated on the classic fragility fractures of the proximal femur, proximal humerus, pelvis, spine and distal radius but it is likely that other fractures are becoming more common.

Methods: We have examined two prospectively collected databases 10 years apart to see which fractures are becoming more common in ≥ 65 year old patients. Read More

BMC Bioinformatics 2018 Dec 10;19(1):471. Epub 2018 Dec 10.

Neurodegenerative Disorders Area, Biodonostia Health Research Institute, Begiristain Doktorea Pasealekua, Donostia-San Sebastian, 20014, Spain.

Background: Parkinson's Disease (PD) is a chronic neurodegenerative disease associated with motor problems such as gait impairment. Different systems based on 3D cameras, accelerometers or gyroscopes have been used in related works in order to study gait disturbances in PD. Kinect has also been used to build these kinds of systems, but contradictory results have been reported: some works conclude that Kinect does not provide an accurate method of measuring gait kinematics variables, but others, on the contrary, report good accuracy results. Read More

Rev Esp Cir Ortop Traumatol 2018 Nov 29. Epub 2018 Nov 29.

Unidad de Patología de Hombro, Servicio de Ortopedia y Traumatología, Instituto de Ortopedia y Traumatología Prof. Dr. Carlos E. Ottolenghi, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.

Objective: The aim of this study was to report the short-term results and complications of partial humeral head resurfacing (HemiCup) in patients treated by avascular necrosis.

Material And Methods: Between 2010 and 2014, 9 patients who underwent partial resurfacing of humeral head were evaluated. All the patients were treated by avascular necrosis. Read More

Injury 2018 Nov 24. Epub 2018 Nov 24.

Servicio de Traumatologia y Cirugia Ortopedica, Complexo Hospitalario Universitario de Santiago de Compostela, Spain; Musculoskeletal Pathology Group, Institute IDIS, Lab 18, Spain.

Purpose: Antegrade intramedullary nailing is an alternative for humeral shaft fracture treatment. This surgical technique can be especially demanding in some fracture patterns, leading to problems like malunion and non-union. The purpose of our study is to demonstrate that the use of a nail with cerclage wires could be a safe procedure that facilitate reduction, specially in fractures with abduction of the proximal fragment. Read More

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

Shoulder & Elbow Clinic, Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea. Electronic address:

Hypothesis: We hypothesized that a new method considering the humeral head would distinguish rotator cuff tears (RCTs) and osteoarthritis (OA) better than the critical shoulder angle (CSA).

Methods: A total of 1011 patients were tested in this study and divided into 4 groups: those with RCTs (n = 493), those with OA (n = 73), those with anterior instability (n = 361), and those with adhesive capsulitis (n = 84). The CSA and new radiologic parameters including the humeral head were measured in the true anterior-to-posterior view: the Y angle connecting the lower end of the glenoid (LG), the center of the humeral head (CH), and the upper end of the glenoid (UG); the G angle connecting UG, CH, and the lateral tip of the acromion; the YG angle connecting LG, CH, and the lateral tip of the acromion; and the R angle connecting UG, LG, and CH. Read More

J Shoulder Elbow Surg 2018 Nov 27. Epub 2018 Nov 27.

Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Science, Nagoya, Japan; Department of Sports and Fitness, Faculty of Wellness, Shigakkan University, Obu, Japan. Electronic address:

Background: The differences between young right-handed and left-handed baseball players are not well known. This study compared the range of the shoulder motion and humeral torsion angle (HTA) between right-handed and left-handed young baseball pitchers.

Methods: A total of 65 young baseball pitchers (age, 9-12 years; 46 right-handed throwers, R group; and 19 left-handed throwers, L group) were analyzed. Read More

J Surg Oncol 2018 Dec 5. Epub 2018 Dec 5.

Department of Orthopaedic Surgery, Orthopaedic Oncology Service, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.

Background And Objectives: Allograft reconstruction of the humerus after resection is preferred by many because of bone stock restoration and biologic attachment of ligaments and muscles to the allograft, theoretically obtaining superior stability and functionality. Our aim was to assess the prevalence of complications and the incidence and etiology for revision surgery in humeral allograft reconstructions.

Methods: We included patients 18 years and older who underwent wide resection and allograft reconstruction of the humerus for primary and metastatic lesions at our institution between 1990 and 2013. Read More

J Biomech Eng 2018 Dec 5. Epub 2018 Dec 5.

Department of Mechanical Engineering, Western University Canada, 1151 Richmond Street, London, Ontario, N6A3K7, Canada.

An important feature of humeral orthopaedic Finite Element (FE) models is the trabecular stiffness relationship. These relationships depend on the anatomic site from which they are derived; but have not been developed for the humerus. As a consequence, humeral FE modeling relies on relationships for other anatomic sites. Read More

Am J Phys Anthropol 2019 Jan;168(1):104-118

Department of Anthropology, The Pennsylvania State University, University Park, Pennsylvania.

Objective: This project investigates trabecular bone structural variation in the proximal humerus and femur of hunter-gatherer, mixed-strategy agricultural, medieval, and human groups to address three questions: (a) What is the extent of trabecular bone structural variation in the humerus and femur between populations with different inferred activity levels? (b) How does variation in the proximal humerus relate to variation in the proximal femur? (c) Are trabecular bone microstructural variables sexually dimorphic?

Methods: The proximal humerus and femur of 73 adults from five human groups with distinct subsistence strategies were scanned using a micro-computed tomography system. Centralized volumes of interest within the humeral and femoral heads were extracted and analyzed to quantify bone volume fraction, trabecular thickness, trabecular separation, connectivity density, degree of anisotropy, and bone surface density.

Results: In the humerus and femur, groups with the highest inferred activity levels have higher bone volume fraction and trabecular thickness, and lower bone surface density than those with lower inferred activity levels. Read More

Musculoskelet Surg 2018 Dec 4. Epub 2018 Dec 4.

Department of Orthopaedics, Faculty of Medicine, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.

Purpose: Displaced pediatric supracondylar humerus fracture (SCHF) requires a reduction and instrumentation. The trend is to send the cases to a fellowship-trained pediatric orthopedist. This study reviewed the outcomes and complications of SCHF surgically managed by orthopedic surgeons with different backgrounds of subspecialty training. Read More

J Biomech 2018 Nov 14. Epub 2018 Nov 14.

Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA; Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA; Department of Orthopaedic Surgery, Yerevan State Medical University, Yerevan, Armenia. Electronic address:

Background: Numerous biomechanical studies have addressed normal shoulder function and the factors that affect it. While these investigations include a mix of in-vivo clinical reports, ex-vivo cadaveric studies, and computer-based simulations, each has its own strengths and limitations. A robust methodology is essential in cadaveric work but does not always come easily. Read More

J Electromyogr Kinesiol 2018 Nov 13;44:46-55. Epub 2018 Nov 13.

Graduate School of Health and Sports Science, Doshisha University, Kyoto, Japan.

The conventional acromion marker cluster (AMC) method used to estimate scapular orientation cannot adequately represent complex shoulder movements due to soft tissue artifacts. The regression method may have nonlinear error changes depending on humeral elevation angle and elevation plane. Therefore, we aimed to develop a new method of estimating scapular orientation using curved surface interpolation during various shoulder movements, and to compare its accuracy with conventional and regression methods. Read More

J Musculoskelet Neuronal Interact 2018 Dec;18(4):438-445

Centre for Exercise and Sports Science Research, Edith Cowan University, Perth, Australia.

Objectives: To quantify between-day reliability of upper-body diaphyseal measurements (radius, ulna, humerus) using peripheral Quantitative Computed Tomography (pQCT).

Methods: Fourteen males (age: 25.8±2. Read More

J Biosoc Sci 2018 Dec 4:1-16. Epub 2018 Dec 4.

4Biological Anthropology Unit,Indian Statistical Institute,Kolkata,India.

The objective of the study was to analyse selected anthropometric features of children, adolescents and young adults from middle-class families in Kolkata, India, by BMI and adiposity categories. Standardized anthropometric measurements of 4194 individuals (1999 male and 2195 female) aged 7-21 were carried out between the years 2005 and 2011. The results were compared by BMI and adiposity categories. Read More

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

Department of Orthopaedic Surgery, KK Women's and Children's Hospital, Singapore.

Background: Nondisplaced or minimally displaced fractures (≤2 mm) of the lateral condyle of the humerus (LCH) could undergo subsequent displacement (>2 mm), which would be a potential surgical indication. We describe a new method to quantify soft tissue swelling in LCH fractures and to identify a threshold value to predict subsequent displacement of LCH fractures. We hypothesized that the larger the soft tissue swelling, the more likely a subsequent displacement would occur. Read More

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

Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. Electronic address:

Background: Anatomic skeletal features of the shoulder play important roles in anterior shoulder dislocation. However, studies on the effect of the humeral structure are few. This case-control study aimed to analyze the risk factors of anterior shoulder instability, including glenoid and humeral factors. Read More

J Biomed Mater Res B Appl Biomater 2018 Nov 30. Epub 2018 Nov 30.

Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois.

Wear particles generated by hip and knee arthroplasties disseminate to the liver and spleen with the highest concentrations observed in subjects who have had a failed arthroplasty. We asked to what extent metallic particles could also disseminate to remote hematopoietic bone marrow. Cored samples of red marrow from the axial skeleton and proximal humerus were obtained postmortem from four males and two females aged 79-92 years. Read More

Bone Joint J 2018 Dec;100-B(12):1600-1608

Department of Orthopaedics, University of Zurich, Balgrist University Hospital, Zurich, Switzerland; Laboratory for Orthopaedic Biomechanics, ETH Zurich, Zurich, Switzerland.

Aims: In patients with a rotator cuff tear, tear pattern and tendon involvement are known risk factors for the development of pseudoparalysis of the shoulder. It remains unclear, however, why similar tears often have very different functional consequences. The present study hypothesizes that individual shoulder anatomy, specifically the moment arms (MAs) of the rotator cuff (RC) and the deltoid muscle, as well as their relative recruitment during shoulder abduction, plays a central role in pseudoparalysis. Read More

Bone Joint J 2018 Dec;100-B(12):1535-1541

Royal Aberdeen Children's Hospital, Aberdeen, UK.

Aims: We set out to determine if there is a difference in perioperative outcomes between early and delayed surgery in paediatric supracondylar humeral fractures in the absence of vascular compromise through a systematic review and meta-analysis.

Materials And Methods: A literature search was performed, with search outputs screened for studies meeting the inclusion criteria. The groups of early surgery (ES) and delayed surgery (DS) were classified by study authors. Read More

J Belg Soc Radiol 2017 Dec 16;101(Suppl 2). Epub 2017 Dec 16.

University Hospital Brussels, BE.

The shoulder joint is functionally and structurally complex and is composed of bone, hyaline cartilage, labrum, ligaments, capsule, tendons and muscles. It links the trunk to the upper limb and plays an important biomechanical role in daily activities. Indications for imaging of the shoulder have considerably increased in the last few years. Read More

BMC Musculoskelet Disord 2018 Nov 30;19(1):420. Epub 2018 Nov 30.

Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109# Xue Yuan Xi Road, Wenzhou, Zhejiang, 325000, China.

Background: Although the proximal humeral fractures (PHFs) treated with locking plate have been well applied, there are few studies concerning on the serial HSA changes after locking plate placement. The purpose of this retrospective study was to explored the clinical significance of serial HSA changes after surgery.

Methods: We retrospectively analyzed the clinical data of 122 patients between January 2012 to December 2016 in our hospital. Read More

J Surg Orthop Adv Fall 2018;27(3):219-225

Department of Shoulder & Elbow Surgery, Holy Cross Orthopedic Institute, Fort Lauderdale, Florida.

The purpose of this study was to examine alterations in national trends managing midshaft clavicle fractures (MCF) and intra-articular distal humerus fractures (DHF) surrounding recent level 1 publications. A retrospective review of the PearlDiver supercomputer for DHF and MCF was performed. Using age limits defined in the original level 1 studies, total use and annual use rates were examined. Read More

Zootaxa 2018 Nov 5;4514(1):87-96. Epub 2018 Nov 5.

Universidade Estadual de Maringá, Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, av. Colombo, 5790. CEP 87020-900. Maringá, PR, Brazil..

A new species of Moenkhausia is described from the upper rio Tocantins basin, States of Goiás and Tocantins, Brazil. Moenkhausia goya, new species, can be distinguished from its congeners by the shape of the humeral blotch in combination with a uniform dark pigmentation covering the interradial membranes of the dorsal and anal fins. Among congeners, the new species is most similar to M. Read More

Sports Biomech 2018 Nov 28:1-13. Epub 2018 Nov 28.

a Department of BioMechanical Engineering , Delft University of Technology , Delft , The Netherlands.

In baseball pitching, biomechanical parameters have been linked to ball velocity and potential injury risk. However, although the features of a biomechanical model have a significant influence on the kinematics and kinetics of a motion, this influence have not been assessed for pitching. The aim of this study was to evaluate the choice of the trunk and shoulder features, by comparing two models using the same input. Read More

Calcif Tissue Int 2018 Nov 27. Epub 2018 Nov 27.

Deakin University, Geelong, VIC, 3220, Australia.

Although individuals with diabetes appear to have a higher fracture risk compared to those without diabetes, fracture risk in impaired fasting glucose (IFG) has not been thoroughly explored. This study determined associations between glycaemia status and fracture risk. Women (n = 575, aged 50 + years) enrolled in the Geelong Osteoporosis Study, were followed from baseline (1993-1997), to date of first fracture, death or December 31, 2010, whichever occurred first (median 13. Read More

Zhonghua Zhong Liu Za Zhi 2018 Nov;40(11):869-871

Department of Orthopedics, Affiliated Hospital of Inner Mongolia University for The Nationalities, Tongliao 028000, China.

To evaluate the curative effect of proximal fibula graft of vascular anastomosis for giant cell tumor(GCT) of distal radius of bone. 38 patients with distal radius GCT were treated with proximal articular graft of anastomotic vessels. We evaluated the wrist joint function before and after surgery using wrist activity, visual analogue scale(VAS)pain score, grip recovery rate and Cooney scoring system. Read More

Am J Orthop (Belle Mead NJ) 2018 Oct;47(10)

2801 K St., #330, Sacramento, CA 95816, USA. Email:

Partial articular-sided supraspinatus tendon avulsion (PASTA) tears are a common clinical problem that can require surgical intervention to reduce patient symptoms. Currently, no consensus has been reached regarding the optimal repair technique. The PASTA Bridge technique was developed by the senior author to address these types of lesions. Read More

J Bone Joint Surg Am 2018 Nov;100(22):e146

Department of Orthopaedics, Kaiser Moanalua Medical Center, Honolulu, Hawaii.

J Bone Joint Surg Am 2018 Nov;100(22):1960-1968

Department of Orthopedic Trauma, East Hospital, Tongji University School of Medicine, Shanghai, China.

Background: This study aimed to determine the difference between computer-assisted virtual surgical technology and 3-dimensional (3D) printing technology in preoperative planning for proximal humeral fractures.

Methods: Between February 2009 and October 2015, 131 patients with 3 and 4-part proximal humeral fractures were divided into 3 groups on the basis of the preoperative planning method: conventional (n = 53), virtual surgical (n = 46), and 3D printing (n = 32). Fracture characteristics and intraoperative realization of preoperative planning (reduction shape and implant choices) were evaluated. Read More

J Bone Joint Surg Am 2018 Nov;100(22):1934-1948

Department of Orthopaedic Surgery, Orthopaedic & Rheumatologic Institute, Cleveland Clinic, Cleveland, Ohio.

Background: The primary objectives of this study were to evaluate the ability of a posteriorly stepped augmented glenoid component, used in patients with primary glenohumeral osteoarthritis with B2 or B3 glenoid morphology, to correct preoperative retroversion and humeral head subluxation and to identify factors associated with radiographic radiolucency and patient-reported clinical outcomes.

Methods: We identified 71 shoulders with B2 or B3 glenoid morphology that underwent anatomic total shoulder arthroplasty with use of a posteriorly stepped augmented glenoid component and with a preoperative 3-dimensional computed tomography (3D-CT) scan and a minimum of 2 years of clinical and radiographic follow-up. The Penn Shoulder Score (PSS), shoulder range of motion, glenoid center-peg osteolysis, and postoperative version and humeral head subluxation were the main outcome variables of interest. Read More

J Am Acad Orthop Surg 2018 Nov 21. Epub 2018 Nov 21.

From the Department of Pediatric Orthopaedic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA.

Pediatric distal humerus fractures are common, and numerous variations can occur depending on patient's age, position of the extremity at the time of injury, and energy of impact. Classic injury patterns include the flexion/extension supracondylar humerus, medial epicondyle, lateral condyle, and the transphyseal distal humerus. We describe our treatment philosophy for pediatric elbow fractures and how these principles were applied to some unusual fractures that presented to our institution. Read More

Orthop J Sports Med 2018 Nov 9;6(11):2325967118806295. Epub 2018 Nov 9.

Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India.

Background: Axillary nerve injury and suture cutout through the roof of the tunnel are potential complications of arthroscopic transosseous rotator cuff repair (ATORCR).

Purpose: To determine a safe angle of drilling for the bone tunnel during ATORCR such that the axillary nerve is not at risk. The thickness of the bone bridge over the tunnel for different angles of drilling was also determined. Read More

Orthop J Sports Med 2018 Nov 7;6(11):2325967118805385. Epub 2018 Nov 7.

Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado, USA.

Massive, irreparable rotator cuff tears (MIRCTs) provide a significant dilemma for orthopaedic surgeons. One treatment option for MIRCTs is reverse total shoulder arthroplasty. However, other methods of treating these massive tears have been developed. Read More

World J Orthop 2018 Nov 18;9(11):245-254. Epub 2018 Nov 18.

Department of Orthopedic Surgery, New York Presbyterian/Columbia University Medical Center, New York, NY 10032, United States.

Posterior instability of the shoulder is a rare condition and represents about 10% of shoulder instability. It has become more frequently recognized in the last year, even though it is more difficult to diagnose than anterior shoulder instability. As this form of shoulder pathology is somewhat rare, biomechanical knowledge is limited. Read More