American Journal of Orthopedic Research and Reviews


MOTION AND ITS EFFECTS ON THE CEMENT MANTLE – A BIOMECHANICAL ANALYSIS OF FEMORAL STEM DISPLACEMENT DURING IMPLANT CEMENTATION

Research Article of American Journal of Orthopedic Research and Reviews Motion and its Effects on the Cement Mantle - A Biomechanical Analysis of Femoral Stem Displacement during Implant Cementation Michael P. Ast, MD1; Adam Gitlin, MD2; Nadeen O. Chahine, PhD3; Daniel Grande, PhD4; Peter Lementowski, MD5 1Hospital of Special Surgery, New York, NY; 2University of Florida College of Medicine, Jacksonville, FL; 3Department of Biomechanics, Columbia Uni-versity, New York, NY; 4Feinstein Institute for Medical Research, Manhasset, NY; 5Westchester Medical Center, Valhalla, NY Background: It is a common notion that motion of a femoral component during cementation should be avoided as it may weaken the cement mantle. We created an in vitro model of cemented femoral components and subjected them to varying  rotational motion during the cement curing process, to measure the effect on the pullout strength of the stem. Methods:  21 sawbones femurs were separated into four groups.  The first group served as control and was cemented in a standard fashion. The remainder of the stems were divided into groups and subjected to angular rotational displacement within the cement mantle during curing .  Anteroposterior and lateral radiographs were obtained of each model to evaluate for cement defects. Pullout strength testing was performed. Results: Despite rotational displacement, no cement defects were noted on imaging.  The control stems showed an average pullout strength of 3735.79N. The experimental groups showed a trend for lower failure loads but it was not statistically significant (P=0.063). Of the 21 stems tested, three encountered cement mantle failure and associated stem pullout and the remainder failed by peripros-thetic fracture. Conclusion: Despite conventional thinking that rotational displacement during the cementing process leading to disruption of the cement mantle integrity, this was not borne out in our study.  This should give surgeons confidence that in the set-ting of unintended rotational displacement ...

OPEN LATARJET PROCEDURE FOR THE MANAGEMENT OF ANTERIOR INSTABILITY OF THE GLENOHUMERAL JOINT

Research Article of American Journal of Orthopedic Research and Reviews Open Latarjet procedure for the management of anterior instability of the glenohumeral joint Hatim ABID, Mohammed EL IDRISSI, Abdelhalim EL IBRAHIMI, Abdelmajid ELMRINI Department of osteoarticular surgery B4, HASSAN II teaching hospital, Fes, Morocco We report in the light of a literature review the results of 10 patients followed for anterior instability of the gleno-humeral joint treated by open Latarjet procedure between January 2017 and December 2020 with a view to a prospective study with longer following up and a greater number of patients. Keywords: anterior instability; Surgery; Open Latarjet procedure ...

SINGLE STAGE KNEE ARTHROPLASTY REVISION SURGERY, OUR EXPERIENCE WITH ELEVEN CASES AND REVIEW OF THE LITERATURE

Review Article of American Journal of Orthopedic Research and Reviews Single Stage Knee Arthroplasty Revision Surgery, Our Experience with Eleven Cases and Review of the Literature Andreas X. Papadopoulos M.D. PhD1, Athanasios Karageorgos M.D. PhD1,Charalampos Matzaroglou M.D. Associate Professor2,Spyros A. Syggelos M.D. Assistant Professor3, Christos A. Papadopoulos Physiotherapist1, Ioannis  D. Gelalis M.D. Professor4 1Department of Orthopaedic Surgery, Olympion Medical Center, Patras, Greece 2Department of Rehabilitation Sciences, University of Patras, Greece 3Department Anatomy – Histology – Embryology, University of Patras 4Orthopaedic Department, University of Ioannina, Greece Knee replacement is a widely performed and very successful procedure for the management of knee arthritis. Nevertheless, it is postulated that a total of 2-5% of primary and revision total knee arthroplasties (TKAs) is infected every year [1,2]. Despite the low incidence, the absolute numbers of prosthetic joint infections (PJIs) are growing, owing to an increased number of replacement surgeries, and are associated with significant morbidity and socioeconomic burden [3,4]. Although several definitions of PJI exist, Musculoskeletal Infection’s Society (MSIS) definition is based on strict criteria and is one of the most used [5]. Patients with certain risk factors have an increased risk to develop PJI [6,7]. Risk factors include presence of systemic or local active infection in an arthritic knee; previous operative procedures in the same knee, diabetes mellitus, malnutrition, smoking, alcohol consumption, co-morbidities, and immunosuppression; end-stage renal disease on hemodialysis, liver disease, intravenous drug abuse, and low safety operative room environment. PJIs are classified according to the depth of infection, to superficial and deep infections. Superficial infections are limited to the incision and superficial tissues, while deep infections, that involve deep layers, may occur up to one year postoperatively, and influence surgical management strategy. Timing of infection is also an important factor in guiding treatment. PJIs are classified to acute postoperative, within a ...

CURRENT STATUS OF DIAGNOSIS AND TREATMENT OF FEMORAL NECK FRACTURES IN THE ELDERLY

Review Article of American Journal of Orthopedic Research and Reviews CURRENT STATUS OF DIAGNOSIS AND TREATMENT OF FEMORAL NECK FRACTURES IN THE ELDERLY Shunhan Yao1, Dinggui Lu1,* 1Affiliated Hospital of Youjiang Medical University for Nationalities; No.18, Zhongshan 2nd Road, Baise, Guangxi, 533000, China Femoral neck fractures are common fractures in the elderly, especially in elderly women. There are many mature treatment methods for femoral neck fractures. However, which option is better is still controversial. In order to allow clinicians to better develop treatment plans for elderly patients with femoral neck fractures, this article summarizes the diagnosis and treatment status of elderly femoral neck fractures from the aspects of epidemiology, etiology and diagnosis, treatment methods and progress of elderly femoral neck fractures. Keywords: Elderly patients with femoral neck fracture, conservative treatment, surgical treatment, accelerated recovery ...

Dr. Karol Szyluk
District Hospital of Orthopedics and Trauma Surgery. b41-940 Piekary Śląskie, Bytomska 62 str. POLAND

Dr. RAÚL GONZÁLEZ-GARCÍA
Department of Oral and Maxillofacial-Head and Neck Surgery, University Hospital Infanta Cristina, Avenida de Elvas s/n, 06080, Badajoz (Spain)

Dr. Maher SALAMOON
Department of Medical Oncology Al Bairouni University Hospital, Ex-specialist in Lyon-sud Hospital Department of Hematology Lyon-france

Dr. P. ShnamugaRaju
Assoc.Professor & I/C Head, Department of Physical Medicine & Rehabilitation, Chalmeda AnandRao Institute of Medical Sciences, Karimnagar-505001 Telangana, India.

Dr. Yousif Mohamed Y. Abdallah
Professor (Assistant), Radiological Science and Medical Imaging Department, College of Applied Medical Sciences, Majmaah University, Majmaah, Saudi Arabia

Dr. Can SARICA
Adiyaman University School Of Medicine, Department Of Neurosurgery, Adiyaman

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1.SENHAJI Said; ABDULRAZAK Saeed; KACIMI ALAOUI Mehdi ; EL IDRISSI Mohamed ; EL IBRAHIMI Abdelhalim ; EL MRINI Abdelmajid Intramuscular myxoma of the thigh: a rare case report.American Journal of Orthopedic Research and Reviews, 2018, 1:6. DOI:10.28933/ajorr-2018-06-2401 
2.Melo, M.C.F, Macêdo, T.S, Oliveira, J.C, Araújo, M.G.C, Vidal, A.K.L.Interrelationship Between Rheumatoid Arthritis and Periodontitis.American Journal of Orthopedic Research and Reviews, 2018, 1:4 

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American Journal of Orthopedic Research and Reviews

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