Search Our Scientific Publications & Authors

Acta Ortop Mex 2018 May-Jun;32(3):140-144

Módulo de Cirugía de Hombro y Codo, Hospital General Xoco. Av. México Coyoacán S/N, Col. General Anaya, Deleg. Benito Juárez, CP 03340, Ciudad de México, México.

Background: Fractures of the lateral third of the clavicle represent 18% of all clavicle fractures. Even though non-displaced fractures can be managed conservatively, displaced fractures have a non-union percentage of 30%. Multiple approaches have been proposed to manage the displaced fractures. Read More

Hum Factors 2018 Dec 6:18720818814107. Epub 2018 Dec 6.

The Ohio State University, Columbus.

Objective:: To explore the change of muscular and biomechanical responses in different load stability and visual access conditions during an asymmetric lifting task.

Background:: Previous studies found that lifting unstable loads resulted in changes to the biomechanical loads experienced by the spine and upper extremities. However, researchers have not extensively investigated behaviors when people lift potentially unstable loads. Read More

Clin Anat 2018 Dec 6. Epub 2018 Dec 6.

Department of Clinical Anatomy, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, Tokyo, Japan.

Introduction: To improve the management outcomes and diagnostic accuracy of the ulnar collateral ligament (UCL) injury, the anatomy of the medial side of the elbow joint is necessary to be understood in terms of the periarticular surroundings rather than the specific ligaments. The aim of this study was to anatomically clarify the medial side of the elbow joint in terms of the tendinous structures and joint capsule.

Materials And Methods: We conducted a descriptive anatomical study of 23 embalmed cadaveric elbows. Read More

Acta Bioeng Biomech 2018 ;20(4):107-113

Department of Physical Medicine, Medical University of Lodz, Łódź, Poland.

Purpose: Upper limb impairment in the early phase of brain stroke is one of the key problems in rehabilitation. An estimation of muscle force can be a helpful factor for functional improvement after a stroke. The primary goals of this study were to determine the muscles with the lowest force in the affected (A) and non-affected (non-A) upper limb. Read More

Acta Bioeng Biomech 2018 ;20(4):133-137

Department of Biomedical Engineering, UTP University of Science and Technology, Bydgoszcz, Poland.

Purpose: The purpose of this work was to assess the impact of a specific equestrian training, conducted in winter weather conditions, on the thermovision temperature distribution of a rider's body surface. The study included a riding pair with 12 years of experience (female rider, aged 25, sports active and 16-year-old horse, Trakehner breed).

Methods: The study included the temperature distribution of selected parts of the rider's body (the area of the right and left shoulder blade, chest and lumbar section, and the region of the left and right cross) was carried out before and after recreational, jumping and dressage training. Read More

J Comp Neurol 2018 Dec 6. Epub 2018 Dec 6.

Department of Physiology, Teikyo University School of Medicine, Tokyo, Japan.

The central projection patterns of cutaneous afferents from the forelimb and shoulder of mice were studied in the spinal dorsal horn after intracutaneous injection of AlexaFluor 488-conjugated and/or 594-conjugated cholera toxin subunit B (CTB). Based on their dermatomes, the following eight skin regions are thought to be innervated by spinal nerves from the sixth to eighth cervical spinal nerve roots: the dorsal surface of the shoulder, brachium, proximal forearm, distal forearm, hand, palmar surface of the second and third digits, and palm. The termination areas of afferents from the dorsal surface of the shoulder and forearm were narrow, distributed in a dorsoventral direction, and aligned in order from lateral to medial within the sixth to eighth cervical dorsal horns. Read More

Musculoskelet Surg 2018 Dec 5. Epub 2018 Dec 5.

Department of Orthopaedics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, 576104, India.

Introduction: Open reduction and plate fixation is known to reduce chances of malunion and symptomatic nonunion in displaced middle-third clavicle fractures. However, this treatment modality is also associated with several complications, such as hardware irritation, numbness around the surgical scar, infection, nonunion and implant failure. The minimally invasive plate osteosynthesis (MIPO) technique may reduce these complications. Read More

Biomed Res Int 2018 5;2018:5786089. Epub 2018 Nov 5.

Department of Orthopedics, First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai, Wenzhou, Zhejiang 325000, China.

Introduction: Internal fixation with volar locking plate (VLP) was widely adopted as a first-line choice in treatment of distal radius fracture (DRF).

Methods: Total 315 patients with distal radius fracture receiving VLP fixation were included for analysis in this study. The rehabilitation protocol was started immediately after surgery for all patients. Read More

IEEE J Transl Eng Health Med 2018 18;6:2101009. Epub 2018 Oct 18.

Industrial Design DepartmentEindhoven University of Technology5612AZEindhovenThe Netherlands.

The objective is to evaluate to which extent that a garment equipped with sensors that can support posture monitoring can be used in upper extremity rehabilitation training of stroke patients. Seventeen stroke survivors (mean age: 55 years old, SD =13.5) were recruited in three hospitals in Shanghai. Read More

Case Rep Oncol 2018 Sep-Dec;11(3):742-750. Epub 2018 Nov 12.

Hematology/Oncology, University of Texas Medical Branch, Galveston, Texas, USA.

Background: Esophageal cancer (EC) with unexpected metastasis (UM) to unusual sites have been increasingly reported. EC with metastasis in general has a very high mortality and morbidity rate, and those with UM to unusual sites present another specific field that needs to be further studied in order to understand and manage the presentation. An extensive systematic review was recently completed regarding this field which identified characteristics and findings concerning patients with EC with UM sites. Read More

Int J Womens Health 2018 9;10:723-732. Epub 2018 Nov 9.

Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Manitoba, Winnipeg, Canada,

Shoulder dystocia can lead to death or brain damage for the baby. Traction on the head can damage the brachial plexus. The diagnosis should be made when the mother cannot push the shoulders out with her own efforts with the next contraction after delivery of the head. Read More

J Shoulder Elbow Surg 2018 Dec 3. Epub 2018 Dec 3.

Centre for Orthopedics, Trauma Surgery and Spinal Cord Injury, Heidelberg University Hospital, Heidelberg, Germany.

Background: Products from metal wear have been identified as a potential cause of adverse local tissue reactions and implant failure in total hip arthroplasty. However, the role of metal ion exposure in patients after total shoulder replacement is unclear. The objective of the present study was to determine in vivo blood metal ion levels of cobalt, chromium, and titanium in patients after anatomic total shoulder arthroplasty (TSA) or reverse TSA. Read More

Med Probl Perform Art 2018 Dec;33(4):251-257

University of Music Franz Liszt Weimar, Platz der Demokratie 2/3, 99423 Weimar, Germany. Tel +491706264778.

Aims: Back strain is a common musculoskeletal complaint affecting musicians, which may be related to unsuitable playing positions causing fatigue and muscle tension. In this study, three saxophone-carrying systems (neck-strap, shoulder-strap, and Saxholder) were examined for their effects on spinal column kinematics.

Methods: The influence of saxophone-carrying systems was investigated in 14 physically healthy alto saxophonists using ultrasound topometry. Read More

Med Probl Perform Art 2018 Dec;33(4):238-242

Faculty of Physical Activity and Sport Sciences, Universidad Católica de Valencia, Ramiro de Maeztu 14, 46900 Torrente, Spain. Tel 96 363 74 12 x71900.

Background: Wind musicians suffer injuries resulting from muscle overuse and poor postural habits, often due to the lack of required physical fitness. For this reason, it is important to study and analyze the characteristics of their activity in order to select appropriate preventive exercises.

Methods: 10 clarinetists, who were experiencing joint pain due to instrumental practice, followed a specific program of physical activity, 3 times a week for 2 months. Read More

J Acupunct Meridian Stud 2018 Nov 30. Epub 2018 Nov 30.

Department of Neurology and Neurological Sciences, Stanford University, Stanford, 94305 USA. Electronic address:

Facioscapulohumeral muscular dystrophy (FSHD) is a genetic muscle disorder in which muscles of the face, shoulder blades and upper arms develop gradual and progressive weakness. There is no effective pharmacological treatment currently available for this disorder so far. We had an opportunity to treat a patient with FSHD using acupuncture. Read More

Microsurgery 2018 Dec 3. Epub 2018 Dec 3.

Department of Plastic and Reconstructive Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio.

Background: Reconstruction of complex back defects, especially after corrective spine surgery, is a challenging problem. In these patients hardware issues predominate and flap failure has serious consequences. Certain subunits of the back pose even greater problems, specifically the central region between T9 and T12. Read More

J Back Musculoskelet Rehabil 2018 Nov 16. Epub 2018 Nov 16.

Department of Health Science, Korea University Graduate School, Seoul, Korea.

Background: The prevalence of degenerative shoulder disease is increasing, and most shoulder diseases are accompanied by changed activation of the scapular muscles. However, the characteristics of scapular muscle activation in older adults have not yet been reported.

Objective: The aim of this study was to investigate the effect of age and load on scapular muscle activation during shoulder abduction and flexion. Read More

J Back Musculoskelet Rehabil 2018 Nov 23. Epub 2018 Nov 23.

Department of Rehabilitation Medicine, Daegu Veterans Health Service Medical Center, Daegu, Korea.

Background And Objective: Calcific tendinitis is commonly found in the rotator cuff; however, it is very rare in the long biceps tendon (LBT). Furthermore, calcific tendinitis involving the LBT in the hemiplegic shoulder after a stroke has not been previously reported.

Materials And Method: We present a case of a 63-year-old man who suffers from a stroke and atypical calcific tendinitis involving the LBT as a rare cause of hemiplegic shoulder pain. Read More

Anaesthesia 2018 Dec 1. Epub 2018 Dec 1.

Department of Anaesthesia and Pain Management, Mount Sinai Hospital, University of Toronto, ON, Canada.

Postpartum haemorrhage is the leading cause of maternal mortality worldwide and prophylactic uterotonic drug administration after the delivery of the infant is advised. Carbetocin is recommended as an uterotonic, but the minimum effective dose has not been verified. We compared the efficacy of two doses of intravenous carbetocin (20 μg and 100 μg) in women undergoing elective caesarean delivery. Read More

Int Orthop 2018 Nov 30. Epub 2018 Nov 30.

Paris Shoulder Unit, Clinique Bizet, 21, rue Georges Bizet, 75016, Paris, France.

Background: Severe glenoid bone loss remains a surgical challenge. This condition is known to be associated with high rates of glenoid component failure.

Purpose: The objective of this study was to evaluate clinical and radiological outcomes of a lateralized metal-backed 15. Read More

Orthop J Sports Med 2018 Nov 27;6(11):2325967118808242. Epub 2018 Nov 27.

Instituto de Engenharia de Sistemas e Computadores-Investigação e Desenvolvimento, Lisbon, Portugal.

Background: Painful dysfunctional shoulders with irreparable rotator cuff tears (IRCTs) in active patients are a challenge. Arthroscopic superior capsular reconstruction (ASCR) is a new treatment option originally described using a fascia lata autograft harvested through an open approach. However, concerns about donor site morbidity have discouraged surgeons from using this type of graft. Read More

PeerJ 2018 23;6:e6003. Epub 2018 Nov 23.

Research and Development, Driveline Baseball, Inc, Kent, WA, United States of America.

Background: Weighted-baseball training programs are used at the high school, collegiate, and professional levels of baseball. The purpose of this study was to evaluate the effects of a six-week training period consisting of weighted implements, manual therapy, weightlifting, and other modalities on shoulder external rotation, elbow valgus stress, pitching velocity, and kinematics.

Hypothesis: A six-week training program that includes weighted implements will increase pitching velocity along with concomitant increases in arm angular velocities, joint kinetics, and shoulder external rotation. Read More

Open Orthop J 2018 25;12:411-418. Epub 2018 Oct 25.

Department of orthopaedics, Sport injury center, Safdarjung Hospital, New Delhi, India.

Background: Arthroscopic repair is gaining popularity over open repair for the treatment of bankart lesions. The study aims to evaluate the outcome of arthroscopic repair with open repair in randomised controlled trials conducted comparing the two techniques.

Methods: We searched the Cochrane library, PubMed and EMBASE up to December 2017 for clinical trials comparing the outcomes of arthroscopic bankart repair with open bankart repair. Read More

J Shoulder Elbow Surg 2018 Nov 29. Epub 2018 Nov 29.

Department of Orthopaedic Surgery, Medical College of Wisconsin, Milwaukee, WI, USA. Electronic address:

Background: Recent orthopedic research has questioned the effect of opioid use on surgical outcomes. This study investigated this in the context of arthroscopic rotator cuff repair. We hypothesized that preoperative opioid use would be associated with inferior outcomes and greater postoperative opioid requirements. Read More

J Shoulder Elbow Surg 2018 Nov 28. Epub 2018 Nov 28.

Shoulder Service, Department of Orthopedic Surgery, Massachusetts General Hospital, Boston Shoulder Institute, Boston, MA, USA. Electronic address:

Background: Since the approval of reverse shoulder arthroplasty (RSA) in 2004, the use of shoulder arthroplasty increased dramatically. Although the success of RSA in the revision setting has been demonstrated, there remains a paucity of studies examining the epidemiology of RSA in revision arthroplasty. This study describes trends of revision arthroplasty during the "era of the reverse," from 2005 through 2016. Read More

J Shoulder Elbow Surg 2018 Nov 28. Epub 2018 Nov 28.

Orthopaedic Surgery and Rehabilitation, William Beaumont Army Medical Center, El Paso, TX, USA.

Background: Medial ulnar collateral ligament (MUCL) reconstruction outcomes are well described in competitive throwers but not in nonthrowers. This investigation elucidated epidemiologic variables, functional outcomes, and prognostic factors after MUCL reconstruction in young active patients.

Methods: United States military service members undergoing MUCL reconstruction were isolated using the Management Analysis and Reporting Tool (M2) database from 2009 to 2016. 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 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

J Hum Evol 2018 Dec;125:181-192

Division of Anthropology, American Museum of Natural History, NY, USA; Humboldt Foundation Fellow at Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Germany.

KNM-ER 47000A is a new 1.52 Ma hominin scapular fossil belonging to an associated partial skeleton from the Koobi Fora Formation, Kenya (FwJj14E, Area 1A). This fossil effectively doubles the record of Early Pleistocene scapulae from East Africa, with KNM-WT 15000 (early African Homo erectus) preserving the only other known scapula to date. Read More

J Hum Evol 2018 Dec 16;125:15-26. Epub 2018 Oct 16.

Department of Anatomical Sciences, Stony Brook University School of Medicine, Stony Brook, NY 11794-8081, USA.

Great apes exhibit a suite of morphological traits of the shoulder and upper thorax that have traditionally been linked to orthograde arborealism. Recently it has been proposed that these traits are instead adaptations for knuckle-walking, and more broadly, that knuckle-walking itself is an adaptation for shock absorption during terrestriality. Here we test several tenets of these hypotheses using kinematic and kinetic data from chimpanzees and macaques, and electromyographic data of shoulder muscle activity in chimpanzees. Read More

Diabetes Metab 2018 Nov 28. Epub 2018 Nov 28.

Paris 13 university, Sorbonne Paris Cité, AP-HP, Jean-Verdier hospital, department of obstetrics and gynecology, Bondy, France.

Aims: In addition to screening for hyperglycaemia during pregnancy after 24 weeks of gestation (WG), the current guidelines also suggest screening in early pregnancy and referring women with early gestational diabetes mellitus (eGDM) or overt diabetes (OD) for immediate care. Our aim was to evaluate this strategy.

Methods: This study evaluated, at our hospital (2012-2016), whether the incidence of a predefined composite outcome (preeclampsia, large-for-gestational-age infant, shoulder dystocia) and secondary outcomes was different when women were screened only after 22WG ('late screening only') or before 22WG and treated for eGDM or OD if present, with repeat screening after 22WG if absent ('early ± late screening'). Read More

J Surg Res 2019 Jan 17;233:88-95. Epub 2018 Aug 17.

Dipartimento di Scienze Cardiotoraciche e Respiratorie, Università degli Studi della Campania "Luigi Vanvitelli", Napoli, Italia.

Background: We aimed to assess whether the use of the harmonic scalpel (HS) in axillary dissection would reduce long-term shoulder-arm morbidity compared to traditional instruments (TIs).

Materials And Methods: A retrospective analysis on 180 patients who underwent standard axillary dissection for breast cancer between 2007 and 2015 was carried out. All patients were evaluated for postoperative pain, impairment of shoulder-arm mobility, seroma formation in axilla, frozen shoulder, and lymphedema. Read More

J Shoulder Elbow Surg 2018 Nov 28. Epub 2018 Nov 28.

Department of Traumatology, Orthopaedics and Hand Surgery, University of Medical Sciences in Poznan, Poznań, Poland.

Hypothesis And Background: Proprioception is an important element of shoulder dynamic stability. It has been shown to be affected in cases of capsular or labral injuries of the glenohumeral joint. Therefore, this study was conducted to investigate bilateral shoulder proprioception by active reproduction of joint position both in patients with post-traumatic recurrent unilateral shoulder instability and in normal healthy volunteers. Read More

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

Department of Paediatric and Adolescent Surgery, Medical University of Graz, Graz, Austria.

Background: Only few reports have described the outcome of pediatric patients following radial head resection. Therefore, the aim of the present study was to assess clinical and radiologic outcome of patients with open physes following resection of the radial head.

Materials And Methods: Skeletally immature patients treated with resection of the radial head were included. 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 Shoulder Elbow Surg 2018 Nov 28. Epub 2018 Nov 28.

Department of Surgery, McMaster University, Hamilton, ON, Canada. Electronic address:

Background: Hyaluronic acid (HA) is an analgesic and chondroprotective agent often used for the nonoperative treatment of osteoarthritis (OA). The effects of HA injections are well studied in the treatment of knee OA, but the effects in glenohumeral OA remain unclear. This study evaluated the efficacy of HA to reduce pain in patients with glenohumeral OA. Read More

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

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

Department of Orthopedics, Clinical Sciences, Lund University and Skåne University Hospital, Lund.

Purpose: Most patients recover well from a distal radius fracture (DRF). However, approximately one-fifth have severe disability after 1 year when evaluated using the Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire. In the present study, we evaluated this subgroup of patients in our register with an inferior outcome. Read More

J Orthop Sports Phys Ther 2018 Nov 30:1-43. Epub 2018 Nov 30.

Faculty of Medicine, University of Sherbrooke, Sherbrooke (QC), Canada.

Study Design: Single-blind, randomized controlled trial.

Background: Treatments for rotator cuff (RC) tendinopathy include RC muscle strengthening to promote better muscle recruitment in order to minimize subacromial narrowing during active movement. Glenohumeral adductors recruitment has also been shown to prevent such narrowing in asymptomatic individuals; therefore, adding glenohumeral adductor coactivation during RC strengthening could enhance the efficacy of RC strengthening. Read More