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tumor prosthesis

Christina Enciso Holm, Christian Bardram, Anja Falk Riecke, Peter Horstmann, Michael Mørk Petersen
PURPOSE: Previous studies reported variable outcome and failure rates after mega-prosthetic reconstructions in the lower extremities. The purpose of this study was to make a long-term single-center evaluation of patients treated with limb-sparing surgery and reconstruction with mega-prostheses in the lower extremities. METHODS: We identified 50 patients (osteosarcoma (n = 30), chondrosarcoma (n = 9), osteoclastoma (n = 6), Ewing sarcoma (n = 4), angiosarcoma (n = 1)), who underwent limb-sparing reconstruction of the lower extremities (proximal femur (n = 9), distal femur (n = 29), proximal tibia (n = 9), and the entire femur (n = 3)) between 1985 and 2005...
March 12, 2018: International Orthopaedics
Pedro Martinez-Seijas, Luis A Díaz-Galvis, Josué Hernando, Ignacio O Leizaola-Cardesa, Antonio Aguilar-Salvatierra, Gerardo Gómez-Moreno
BACKGROUND: Over the years, many materials have been used in orbital reconstruction and cranioplasty. Among the materials in current use, polymethyl methacrylate (PMMA) offers a high degree of compatibility with human tissue. OBJECTIVE: This work describes a new, custom-made, 3D printing-aided, prosthetic fabrication process for orbital and/or cranial reconstruction using PMMA. METHODS: On the basis of information obtained from computerized tomography scanning processed in Digital Imaging and Communication in Medicine format and exported to treatment planning software, a 3D prosthesis master model was designed and digitally printed...
March 8, 2018: Journal of Craniofacial Surgery
Alexandru-Dan Sabău, Noor Hassan, Cătălin Gabriel Smarandache, Alin Miheţiu, Ștefan Ţîţu, Dan Sabău
PURPOSE: An original technique using laparoscopic instruments in a gastric endocavitary work chamber with potential for esophagus, stomach and D1 vizualisation. The main purpose of laparagastroscopy is to improve the quality of life of the patient disabling by the esophageal tumor. This method has several advantages: providing physiological feeding, harvesting materials for histopathological examination, solving eso-tracheal fistulas concurrently with the proposed operation and hemostatic role through compression, low energy and plastic consumption, rapid socio-economic reintegration, mental psychological care of the patient...
January 2018: Chirurgia
Denisa Oprisanescu, Denisa Bucur, Vasile Sandru, Ioan Cristian Nedelcu, Madalina Ilie, Ruxandra Oprita, Gabriel Constantinescu
Non-malignant esophageal fistulas have a wide spectrum of clinical and pathological features and it`s important to learn to detect and treat them, due to significant morbidity, mortality and costs. The need for minimally invasive, efficient and also quick procedures is imperative. Esophageal stenting using fully-covered expandable stents has become an increasingly preferred option and addresses to fistulas which arise from 2-3 cm beyond Killian's mouth and up to the gastroesophageal junction. The long-term purpose of the procedure is closure of the fistula and thus healing...
January 2018: Chirurgia
Koichi Ogura, Michiro Susa, Hideo Morioka, Akihiko Matsumine, Takeshi Ishii, Kenichiro Hamada, Takafumi Ueda, Akira Kawai
BACKGROUND: We conducted a nationwide survey of prosthetic reconstruction using a constrained-type hip tumor prosthesis (C-THA) following resection of periacetabular tumors. METHODS: Eighty patients with periacetabular tumors underwent wide resection and prosthetic reconstruction using C-THA at JMOG-affiliated institutions (39 males and 41 females; mean age, 46.7 years; mean follow-up period, 65 months). Primary bone or soft tissue sarcoma accounted for 75% of the cases...
February 23, 2018: Journal of Surgical Oncology
Mehmet Akif Cakmak, Hakan Cinal, Ensar Zafer Barin, Muhammed Sedat Sakat, Harun Karaduman, Onder Tan
Free flaps based on static slings principles cannot provide esthetic and functional outcomes at a desired level in total or close to total lip loss. Therefore, dynamic methods have become a current issue in recent years and especially the idea of functional gracilis free muscle flap has been suggested. In this study, we present a case of a successful total lower lip repair with this flap.In a 78-year-old female patient who was diagnosed with squamous cell carcinoma involving the entire lower lip, bilateral modified radical neck dissection and full-thickness total resection with 1 cm surgical margin so as to include both commissures of the tumor were performed and then a free gracilis muscle flap was transferred from the same side...
February 14, 2018: Journal of Craniofacial Surgery
Jian-Tao Liu, Feng Zhang, Zheng-Chao Gao, Bin-Bin Niu, Yu-Huan Li, Xi-Jing He
Artificial vertebral body has achieved good results in treating spinal tumors, tuberculosis, fracture and other diseases. Currently, artificial vertebral body with variety of kinds and pros and cons, is generally divided into two types: fusion type and movable type. The former according to whether the height could be adjusted and strength of self-stability is divided into three types: support-fixed type, adjust-fixed type and self-fixed type. Whether the height of self-fixed type could be adjusted is dependent on structure of collar thread rotation...
December 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
Fernand Missohou
PURPOSE: Bowel is often the dose-limiting organ in curative pelvic irradiation because of radiation enteritis when dose exceeds 40 to 45 Gy. To limit radiation enteritis, a silicone tissue-expander prothesis (STEP) connected to a subcutaneous self-sealing valve was prospectively used in children undergoing pelvic or abdominal radiation therapy. This study reports the 15-year long-term outcomes of this prospective series. METHODS AND MATERIALS: Between 1987 and 2008, 29 children from 3 Paris institutions received pelvic radiation therapy after surgical placement of a STEP in the pelvis...
December 14, 2017: Practical Radiation Oncology
Minxun Lu, Li Min, Cong Xiao, Yongjiang Li, Yi Luo, Yong Zhou, Wenli Zhang, Chongqi Tu
Introduction: Currently, it is challenging to treat giant cell tumor (GCT) of distal radius. For Campanacci grade III or recurrent GCTs, en bloc resection has been accepted as a better treatment option. Although numerous methods are available for reconstruction, all of them have some limitations in joint function and complications. In this study, our aims were to treat the GCT of distal radius with uncemented three-dimensional (3D)-printed prosthesis and to present and evaluate the surgical techniques and short-term outcomes...
2018: Cancer Management and Research
Chunlin Zhang, Jianping Hu, Kunpeng Zhu, Tao Cai, Xiaolong Ma
PURPOSE: We initiated a retrospective study on the long-term survival of cemented endoprostheses for bone tumours around the knee to answer the following questions: (1) What was the survival of these patients? (2) What was the overall survival of cemented prostheses around the knee? (3) What types of failures were observed in these reconstructions? (4) Did the survival and complications vary according to the site of the implant? (5) What was the functional result after cemented prosthesis replacement around the knee? METHODS: From January 2006 to December 2013, 108 consecutive patients with an average age of 25 years, who had mature bone development as evidenced by imaging examinations, underwent 108 cemented endoprosthetic knee replacements for osteosarcoma resection...
February 9, 2018: International Orthopaedics
Rachna Seth, Amitabh Singh, Vijay Guru, Bhavna Chawla, Sushmita Pathy, Savita Sapra
Background: Retinoblastoma (Rb) is the most common primary intraocular tumor of infancy and childhood. Survivors' ocular and visual problems and increased risk for subsequent malignancy are well documented, but data on long-term health status of Rb survivors are limited, this being particularly true for India. Methodology: Children who had completed treatment for Rb at least 2 years ago before and were under follow-up at the after cancer treatment clinic were evaluated...
October 2017: South Asian Journal of Cancer
Katinka Kansy, Andreas Albert Mueller, Thomas Mücke, Friederike Koersgen, Klaus Dietrich Wolff, Hans-Florian Zeilhofer, Frank Hölzle, Winnie Pradel, Matthias Schneider, Andreas Kolk, Ralf Smeets, Julio Acero, Piet Haers, G E Ghali, Jürgen Hoffmann
INTRODUCTION: Microvascular surgery following tumor resection has become an important field of oral and maxillofacial surgery (OMFS). Following the results from management of T1/T2 floor-of-mouth and tongue squamous cell carcinoma (SCC) in German-speaking countries, Europe, and worldwide, this paper presents specific concepts for the management of resection and reconstruction of T3/T4 SCC of the maxillary and mandibular alveolar process and tongue. METHODS: The DÖSAK questionnaire was distributed in three different phases to a growing number of maxillofacial units worldwide...
January 8, 2018: Journal of Cranio-maxillo-facial Surgery
Yongqiang Zheng, Jianhua Wang, Suixiang Liao, Dongsheng Zhang, Jinshan Zhang, Limin Ma, Hong Xia
Various modified instruments are used for the anterior reconstruction of the tumor lesion affecting the second cervical vertebra, but there have been no reports regarding individual integrated artificial axis (IAA) prosthesis fabricated by selective laser melting. In the present work, a new type of IAA prosthesis has been designed with a 3-dimensional (3D) finite element model of normal occiput-the fourth cervical vertebra being established to assess its biomechanics. For easy comparison, another 3D finite element model is also established for the T-shaped Harms cage and an additional posterior fixation was performed on each model...
November 2017: Medicine (Baltimore)
Zhiye Du, Shun Tang, Rongli Yang, Xiaodong Tang, Tao Ji, Wei Guo
BACKGROUND: Hip dislocation is a major complication of total femoral prosthetic reconstruction (TFR) after femoral tumor resection. Hip dislocation can occur because of inadequate functional abductor musculature, inadequate hip capsule repair, or a long lever arm after total femur replacement. To eliminate the negative effects of these factors on the risk of hip dislocation, the use of artificial ligaments may help to increase the stability of the hip joint. We aimed to determine whether application of an artificial ligament would improve limb function and active range of movement (ROM) after TFR...
December 27, 2017: Journal of Arthroplasty
Andreas Toepfer, Norbert Harrasser, Isabel Petzschner, Florian Pohlig, Ulrich Lenze, Ludger Gerdesmeyer, Ruediger von Eisenhart-Rothe, Heinrich Mühlhofer, Christian Suren
BACKGROUND: Several surgical options for the reconstruction of massive bone defects have been described and include biologic methods with autografts and allografts, and the use of tumor endoprostheses (total femoral replacement, TFR). Several types of modular TFR are available, but nevertheless unpredictable outcomes and high complication rates have been described from most authors. The present study aims to compare results after TFR performed with modular total femur prosthesis MML (Fa...
January 16, 2018: European Journal of Medical Research
Y Fei, J Y Li
Objective: To explore the ideal procedure of excision and repair for giant desmoid in the abdominal wall and long-termed follow-up results. Methods: Clinical and follow-up data of 24 patients with giant desmoid in the abdominal wall underwent radical removal and immediate abdominal wall reconstruction in Diagnostic and Therapeutic Center of Hernia and Abdominal Wall Diseases, First Affiliated Hospital of People's Liberation Army General Hospital from October 2006 to October 2016 were analyzed retrospectively...
January 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
Roslind Karolina Hackenberg, Jochen Nessler, Dietmar Pierre König
BACKGROUND: Tumor prostheses are established as a standard procedure in tumors of the lower extremities. Septic and aseptic loosening remains the main reason for the failure of tumor prostheses. Due to bone defects, the possibilities of anchoring revision prostheses are limited. Trabecular metal cones are established in prosthetic revision surgery. However, the use of segmental trabecular metal cones in a custom-made tumor revision prosthesis has not yet been described. OBJECTIVE: A 58-year-old patient, who initially received a resection of the distal femur and reconstruction with a tumor prosthesis due to chondrosarcoma, attended our clinic...
December 29, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
Xihai Zhang, Ge Chen, Jun Wang, Lian Tang, Yiran Yin
Background: This paper is aimed at studying the therapeutic effects of in situ replantation of alcohol-devitalized bone segments to treat malignant bone tumors of the knee joint. Methods: We retrospectively analyzed clinical data for 45 patients from January 2013 to January 2016 who underwent replantation following alcohol-devitalization of bone segments and 40 who underwent prosthesis implantation. The two groups were comparable in basal clinical biometric data, including gender, age, tumor type and location, Enneking staging, and maximum tumor diameter...
October 2017: Iranian Journal of Public Health
Yu Chen, Xiuchun Yu, Weimin Huang, Bing Wang
BACKGROUND: The effects of clavicular reconstruction on total and subtotal claviculectomy are controversial. The aim of this study is to disclose the impact of clavicular reconstruction on the efficacy of this rare surgical procedure. METHODS: This is a systematic review of multiple medical databases for level I through IV evidence. RESULTS: Eleven studies (level IV) with a mean follow-up duration of 53 months (range, 12-156 months) met the inclusion criteria...
January 2, 2018: Journal of Shoulder and Elbow Surgery
G Gastaldi, L Palumbo, C Moreschi, E F Gherlone, P Capparé
Introduction: The aim of this study is to determine the outcome of maxillofacial prosthetic rehabilitation after oncological resections, including both intra- and extra-oral prosthetic devices. Methods: In this study were included 72 patients, who have undergone an intra or extra-oral maxillofacial prosthetic rehabilitation after an oncologic resection. Tumors on the head and neck were analyzed and the defects of these resections have been divided in two different groups: intra and extra-oral defects...
July 2017: Oral & Implantology
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