Tehran University of Medical Sciences Journal of Orthopedic and Spine Trauma 2538-2330 6 1 2020 11 16 1 8 Fatemeh Baghaie Nia Department of Orthopedics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran Fatemeh Khavari Department of Orthopedics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran Masoumeh Firouzi Research Center for Neural Repair (RCNR), University of Tehran, Tehran, Iran Mohammad Hossein Nabian Department of Orthopedic Surgery, Shariati Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran 2020 07 07 2020 11 16 Nowadays, orthopedic-related pathologic conditions are considered as a growing concern. Also, the conventional treatments (grafting techniques) are not efficacious enough for the growing clinical needs. In the last decades, researches have been focused on finding more effective alternative treatments. Tissue engineering (TE) is a newly emerging field of science that has great potential to reduce these clinical issues. There are three main components in TE including cells, biomaterials, and signals. Choosing the best combination of these components is a vital decision in a TE process. In this review article, we are going to discuss TE and its components and also highlight some of the researches in the field of orthopedic TE by focusing on some tissues including bone, cartilage, skin, skeletal muscle, peripheral nervous system (PNS), tendon, and ligament. In the end, TE, as a new field of science, faces some major challenges that we will address some of them in this article. https://jost.tums.ac.ir/index.php/jost/article/view/200 https://jost.tums.ac.ir/index.php/jost/article/download/200/178

Tehran University of Medical Sciences Journal of Orthopedic and Spine Trauma 2538-2330 6 1 2020 11 15 9 13 Rohollah Khajeh Fellowship of Hand Surgery, Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran, Iran Behzad Enayati Fellowship of Hand Surgery, Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran, Iran Farzad Vosughi Resident, Department of Orthopedics, Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran, Iran SM Javad Mortazavi Professor, Department of Orthopedic Surgery, Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran, Iran 2020 07 08 2020 09 10 No abstract is available. https://jost.tums.ac.ir/index.php/jost/article/view/201 https://jost.tums.ac.ir/index.php/jost/article/download/201/172

Tehran University of Medical Sciences Journal of Orthopedic and Spine Trauma 2538-2330 6 1 2020 11 15 14 5 Nima Hoseini Zare Joint Reconstruction Research Center, Tehran University of Medical Sciences Alireza Moharrami Joint Reconstruction Research Center, Tehran University of Medical Sciences Seyed Mohammad Javad Mortazavi Joint Reconstruction Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran 2020 07 03 2020 09 10 No Abstract is available. https://jost.tums.ac.ir/index.php/jost/article/view/199 https://jost.tums.ac.ir/index.php/jost/article/download/199/173

Tehran University of Medical Sciences Journal of Orthopedic and Spine Trauma 2538-2330 6 1 2020 11 15 16 9 Ehsan Mahmoudi Department of Orthopedic Surgery, Shariati Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran Mohammad Hossein Nabian Department of Orthopedic Surgery, Shariati Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran 2020 07 03 2020 07 26 Background: Syndesmotic injury is one of the major causes of ankle pain and arthritis in athletes. Syndesmotic instability may remain undetectable when occurring with ankle fractures. Case Report: A 59-year-old man presented to the orthopedic clinic with a history of surgery for fracture-dislocation of ankle two months before his visit. During revision surgery, we performed an open reduction, tension band wiring (TBW), and syndesmotic screw fixation. The results were satisfactory, with an almost full ankle range of motion (ROM) and good skin condition. Conclusion: Early diagnosis and treatment of syndesmosis injury can prevent the complications such as chronic pain, osteoarthritis (OA), and stiffness. There is no consensus on the treatment of syndesmosis injury, but the main factors in determining the treatment plan are tibiofibular joint stability or instability and the amount of time that the injury has occurred. Magnetic resonance imaging (MRI) and computed tomography (CT) can also be used in addition to X-rays in cases of suspected syndesmosis injury. https://jost.tums.ac.ir/index.php/jost/article/view/197 https://jost.tums.ac.ir/index.php/jost/article/download/197/174

Tehran University of Medical Sciences Journal of Orthopedic and Spine Trauma 2538-2330 6 1 2020 11 15 20 1 Monir Najafi Piraste Department of Orthopedic Surgery, Alborz University of Medical Sciences, Karaj, Iran Ehsan Seif Alborz University of Medical Sciences, Karaj, Iran Arvin Najafi Department of Orthopedic Surgery, Alborz University of Medical Sciences, Karaj, Iran Salman Azarsina Department of Orthopedic Surgery, Alborz University of Medical Sciences, Karaj, Iran 2020 06 28 2020 10 02 Background: The lateral epicondyle fracture in children is a rare condition and only few cases have been reported in the literature. The isolated fracture without concomitant fracture/dislocation is even more uncommon, with unclear outcome and treatment approach. Case Report: We present a case of an 11-year-old boy with restricted right elbow range of motion (ROM) after falling. The radiograph and computed tomography (CT) scan showed a displaced lateral epicondyle fracture without accompanying fracture or dislocation. Due to the stability of the joint and patient’s compliance, a closed reduction with Kirschner wires (K-wires) was selected for treatment. Follow-up results were satisfactory and showed no complications.   Conclusion: Closed reduction of dislocated lateral epicondyle fracture in children can result in acceptable outcomes. https://jost.tums.ac.ir/index.php/jost/article/view/193 https://jost.tums.ac.ir/index.php/jost/article/download/193/175

Tehran University of Medical Sciences Journal of Orthopedic and Spine Trauma 2538-2330 6 1 2020 11 15 22 3 Amir Sabbaghzadeh Department of Orthopedics, Bone, Joint and Related Tissue Research Center, Akhtar Orthopedic Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran Hossein Mohebi Department of Orthopedics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran Shiva Momen School of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran Morteza Gholipour Department of Orthopedics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran Seyyed-Mohsen Hosseininejad Bone, Joint and Related Tissue Research Center(BJRTrc), Shahid Beheshti University of Medical Sciences, Tehran, Iran 2020 07 02 2020 08 08 Background: Freiberg’s disease is an uncommon condition typified by bony infarction of the second metatarsal head with a vague multifactorial etiology which tends to mostly occur in women. Case Report: A 22-year-old woman presented with second metatarsal head local pain exacerbating while walking without any prominent previous trauma history; clinical and imaging workups revealed metatarsal head osteonecrosis of Freiberg’s infarction. Conclusion: It should be kept in mind that for those complaining of forefoot discomfort, especially in the region of metatarsal heads, Freiberg’s avascular necrosis (AVN) could be a potential pathology. https://jost.tums.ac.ir/index.php/jost/article/view/194 https://jost.tums.ac.ir/index.php/jost/article/download/194/176

Tehran University of Medical Sciences Journal of Orthopedic and Spine Trauma 2538-2330 6 1 2020 11 15 24 5 Alireza Moharrami Resident, Department of Orthopedic Surgery, Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran, Iran Hamid Arabi Orthopedic Surgeon, Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran, Iran 2020 07 03 2020 09 10 No abstract is available. https://jost.tums.ac.ir/index.php/jost/article/view/198 https://jost.tums.ac.ir/index.php/jost/article/download/198/177