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https://www.readbyqxmd.com/read/28922244/fibular-graft-effective-panorama-for-prosthetic-rehabilitation-of-resected-mandible
#1
Pankaj Kharade, Saidul Islam, Mahesh Verma, Swati Sharma, Ranjeet Bodh
Surgical management of extensive tumors in the mandibular region leads to massive disfigurement of the face. Also the prosthetic outcome of such patients rehabilitated with free soft tissue flaps is very poor. Reconstruction of extensive defects to overcome the disfigurement is a challenging procedure and can be achieved with free fibula flap. Free fibula graft provides sufficient length of bone for the reconstruction of the postsurgical defects. Excellent vascularity of fibula flap allows for easy uptake of the graft and osseointegration of the dental implants...
September 15, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28918299/the-prosthetic-rehabilitation-of-a-patient-with-a-lateral-postsurgical-defect-using-a-2-piece-magnet-retained-facial-prosthesis-a-clinical-report
#2
Kariem M Elhelow, Yasser E Al-Thobaiti, Abdurabu A Gomawi
Nonsurgical prosthetic interventions are often proposed after repeated grafts have failed to restore irradiated facial defects. This report describes a facial prosthetic reconstruction following ablative surgery for a sizable facial tumor by using a novel custom-made magnet-bearing substructure, which connected with an exposed part of the mandibular reconstruction plate. The defect involved the entire left lower part of the face and angle of the mentum. This reconstructive technique, together with an added surface texture with hair-like silicone strands, effectively addressed the cosmetic needs of the patient...
September 14, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28872729/a-retrospective-cohort-study-of-the-cumulative-survival-rate-of-obturator-prostheses-for-marsupialization
#3
Mamoru Murakami, Yasuhiro Nishi, Misaki Nishio, Yoko Minemoto, Takaharu Shimizu, Masahiro Nishimura
PURPOSE: After marsupialization of benign tumors and jawbone cysts, insertion of an obturator prosthesis maintains the surgical opening and improves hygiene. To date, there have been no reports clarifying the relationship between the obturator design and treatment outcomes. The purpose of this study was to examine the survival rate of three types of obturator, and to investigate the factors that expedite the removal of the obturator. MATERIALS AND METHODS: The subject group comprised 100 patients who had an obturator inserted after marsupialization at Kagoshima University Hospital between May 31, 2012 and March 31, 2015; 73 patients with lesions in the mandible were eligible...
September 5, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28861206/comparison-of-pasteurized-autograft-prosthesis-composite-reconstruction-and-resection-hip-arthroplasty-for-periacetabular-tumors
#4
Seung Yong Lee, Dae-Geun Jeon, Wan Hyeong Cho, Won Seok Song, Chang-Bae Kong
BACKGROUND: Because of the high complication rate of anatomical reconstruction after periacetabular resection, the strategy of resection alone has been revisited. However, in terms of complications and functional outcome, whether resection hip arthroplasty (RHA) shows a superior result to that of pelvic ring reconstruction remains controversial. METHODS: We compared 24 RHAs and 16 pasteurized autograft-prosthesis composite (PPC) reconstructions regarding the complication rates, operative time, blood loss, and functional outcome...
September 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28860818/chest-reconstruction-using-a-custom-designed-polyethylene-3d-implant-after-resection-of-the-sternal-manubrium
#5
Joanna Lipińska, Leszek Kutwin, Marcin Wawrzycki, Leszek Olbrzymek, Sławomir Jabłoński
INTRODUCTION: Resection of manubrium or body of the sternum is associated with a necessity of chest wall reconstruction. Large sternal defects require the use of different types of implants to ensure acceptable esthetic effect for the patient and chest stabilization. AIM: The purpose of this case report is to present a novel method of reconstruction of manubrium removed due to renal cancer metastasis to the sternum. CASE: We present the case of a patient, who had underwent right nephrectomy for clear cell kidney cancer, diagnosed with a metastatic tumor in the sternum resulting in destruction of manubrium...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28842793/knee-function-after-limb-salvage-surgery-for-malignant-bone-tumor-comparison-of-megaprosthesis-and-distal-femur-allograft-with-epiphysis-sparing
#6
Sébastien Pesenti, Emilie Peltier, Vincent Pomero, Guillaume Authier, Lionel Roscigni, Elke Viehweger, Jean-Luc Jouve
PURPOSE: Limb salvage surgery is increasingly used for the treatment of distal femur bone sarcomas. Total knee replacement using megaprosthesis and epiphysis-sparing biologic reconstruction using an allograft are widely used in order to preserve joint motion. We aimed to compare the results of these procedures using gait analysis in patients undergoing limb salvage surgery. METHODS: Fifteen patients were included, nine undergoing allograft with epiphysis sparing (Allograft group) and six undergoing megaprosthesis (Megaprosthesis group)...
August 26, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28841384/rehabilitation-with-an-implant-supported-metal-acrylic-fixed-prosthesis-after-ameloblastoma-resection-in-mandible-clinical-case-letter
#7
Julide Ozen, Behcet Erol, Sibel Dikicier, Gulce Alp
The majority of patients often have functional problems after undergoing jaw reconstruction. These patients require intense rehabilitation, including surgical and prosthodontic procedures to maximize function, esthetics, and to preserve mastication, speech, and appearance. This clinical report describes the rehabilitation of a patient who had a large tumor resection of ameloblastoma of the mandible resulting in hard and soft tissue deficiency. The mandible was reconstructed with an iliac bone graft with simultaneous tumor removal...
August 25, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28834831/the-new-anatomical-classification-system-for-orbital-exenteration-defect
#8
Can Cinar, Hakan Arslan, Ugur Anil Bingol, Yagmur Aydin, Oguz Cetinkale
BACKGROUND: The unique anatomy of the orbita and the different behavior of each malignant tumor cause us to perform the various types of orbital exenteration that yields to varying defect each of which has own specific demands in terms of the reconstruction. Current classification of orbital exenteration defects seems not to be adequate to provide detailed description. This study reviews 50 exenteration defects to offer a more effective anatomical classification system. METHODS: Over a 15 years period, 50 orbital exenteration defects in 47 patients were reconstructed...
August 22, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28794630/probiotics-protect-mice-from-cocrmo-particles-induced-osteolysis
#9
Zhenheng Wang, Kaiwen Xue, Maosheng Bai, Zhantao Deng, Jingjing Gan, Gang Zhou, Hongbo Qian, Nirong Bao, Jianning Zhao
Wear particle-induced inflammatory osteolysis is the primary cause of aseptic loosening, which is the most common reason for total hip arthroplasty (THA) failure in the med- and long term. Recent studies have suggested an important role of gut microbiota (GM) in modulating the host metabolism and immune system, leading to alterations in bone mass. Probiotic bacteria administered in adequate amounts can alter the composition of GM and confer health benefits to the host. Given the inflammatory osteolysis that occurs in wear debris-induced prosthesis loosening, we examined whether the probiotic Lactobacillus casei could reduce osteolysis in a mouse calvarial resorption model...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28746932/morbidity-and-functional-outcomes-following-free-jejunal-flap-reconstruction-for-head-and-neck-cancer
#10
Song Ni, Yiming Zhu, Dong Qu, Jian Wang, Dezhi Li, Bin Zhang, Zhengang Xu, Shaoyan Liu
AIM: To evaluate the morbidity and fundamental functional outcomes (swallow and speech) after free jejunal flap (FJF) reconstruction following total pharyngolaryngo-esophagectomy (PLE) in China. METHODS: 18 patients with FJF reconstruction after total PLE were retrospectively reviewed. Scheduled barium swallow test was performed 7-10 days postoperatively. Rehabilitation of swallowing and speech for patients was assessed by the Performance Status Scale for Head and Neck Cancer Patients...
2017: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/28728303/-enhancing-soft-tissue-reattachment-with-artificial-mesh-in-joint-endoprosthetic-reconstruction-for-bone-tumors
#11
J S Lin, R Chen, W Yan, D D Chen
Objective: To investigate the operative method and clinical application of the BARD(®) Mesh in enhancing joint stability and function of endoprosthetic reconstruction for bone tumors. Methods: From Jan 2013 to Jun 2015, the clinical data of 51 patients aged (44.75±23.18) years underwent wide resection of tumor and endoprosthetic reconstruction using the BARD(®) Mesh were collected. Among them, 27 were male and 24 were female. The surgical treatments received by these patients included 5 shoulder arthroplasties, 12 elbow replacements, 12 hip replacements and 32 knee replacements (including 24 femoral tumors and 8 tibial tumors)...
July 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28722169/prognosis-based-shoulder-hemiarthroplasty-after-resection-of-proximal-humeral-malignancy
#12
Chao-Ming Chen, Po-Kuei Wu, Shang-Wen Tsai, Cheng-Fong Chen, Wei-Ming Chen
After wide excision of proximal humeral bony malignancy, prognosis-based reconstruction was performed at Taipei Veterans General Hospital. Bone prosthesis composite (BPC) was carried out among patients with a favored prognosis, while cement-spacer prosthesis composite (CSPC) was preserved for patients with poor prognosis. The aim of our study is to compare the clinical outcomes between the BPC and CSPC reconstruction procedures. From January 2000 to December 2014, we retrospectively reviewed the clinical outcomes of 34 patients who underwent shoulder hemiarthroplasty following wide excision of a malignant lesion of the proximal humerus, 15 of whom were treated with a BPC reconstruction and 19 cases were treated with a CSPC reconstruction...
July 19, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28698814/a-patient-matched-entire-first-metacarpal-prosthesis-in-treatment-of-giant-cell-tumor-of-bone
#13
Thipachart Punyaratabandhu, Boonrat Lohwongwatana, Chedtha Puncreobutr, Arkaphat Kosiyatrakul, Puwadon Veerapan, Suriya Luenam
Giant cell tumor of the bones occurring in the first metacarpals frequently requires entire metacarpal resection due to the aggressive nature and high rate of recurrence. Bone reconstruction can be performed with autogenous bone grafts. Here we describe a new technique of reconstruction using a patient-matched three-dimensional printed titanium first metacarpal prosthesis. This prosthesis has a special design for ligament reconstruction in the proximal and distal portions. Good hand function and aesthetic appearance were maintained at a 24-month follow-up visit...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28688018/current-pathologic-scoring-systems-for-metal-on-metal-tha-revisions-are-not-reproducible
#14
Christiaan Smeekes, Arjen H G Cleven, Bart C H van der Wal, Stefan V Dubois, Remigio W Rouse, Bastiaan F Ongkiehong, Ron Wolterbeek, Rob G H H Nelissen
BACKGROUND: The aseptic lymphocyte vasculitis-associated lesion (ALVAL) score and the modified Oxford ALVAL score are frequently used scoring methods to evaluate the morphologic features of periprosthetic tissues around metal-on-metal (MoM) hip implants. Except for the initial studies of these two morphology scoring methods, to our knowledge, no other studies have reported on intraclass correlation coefficient (ICC) values for interobserver reliability of these scoring methods. QUESTIONS/PURPOSES: Are the ALVAL and Oxford ALVAL scores reproducible? METHODS: The periprosthetic tissue of 37 revisions of 36 patients with failed MoM THAs were independently scored by three experienced pathologists using ALVAL and Oxford ALVAL scoring methods...
July 7, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28684229/reverse-shoulder-endoprosthesis-for-pathologic-lesions-of-the-proximal-humerus-a-minimum-3-year-follow-up
#15
Simon Maclean, Shahbaz S Malik, Scott Evans, Jonathan Gregory, Lee Jeys
BACKGROUND: The Bayley Walker (Stanmore Implants, Elstree, UK) reversed polarity, linked shoulder replacement is designed to provide stable function in the treatment of a painful shoulder with poor soft tissue coverage. We reviewed the results of the prosthesis in destructive pathologic lesions of the proximal humerus at a United Kingdom tumor center. METHODS: We identified 8 patients (2 men, 6 women) in our database. Clinical information and functional outcome scores were collected, including range of movement, Toronto Extremity Salvage Score, the Musculoskeletal Tumor Score...
July 3, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28659718/pasteurized-autograft-prosthesis-composite-reconstruction-may-not-be-a-viable-primary-procedure-for-large-skeletal-defects-after-resection-of-sarcoma
#16
Seung Yong Lee, Dae-Geun Jeon, Wan Hyeong Cho, Won Seok Song, Chang-Bae Kong, Bum Suk Kim
BACKGROUND: Among various types of composite biological reconstruction, pasteurized autograft-prosthesis composite (PPC) is popular when allograft is unavailable. Previous limited cohort study indicated result comparable to tumor prosthesis. However, as case number and follow-up increase, we experienced more complications than anticipated. We questioned the usefulness of PPC as a viable reconstructive option. METHODS: We reviewed 142 PPCs and analyzed overall and location-related survival and factors associated with the failure of PPC...
2017: Sarcoma
https://www.readbyqxmd.com/read/28639517/development-of-finite-element-model-for-customized-prostheses-design-for-patient-with-pelvic-bone-tumor
#17
Taimoor Iqbal, Lei Shi, Ling Wang, Yaxiong Liu, Dichen Li, Mian Qin, Zhongmin Jin
The aim of this study was to design a hemi-pelvic prosthesis for a patient affected by pelvic sarcoma. To investigate the biomechanical functionality of the pelvis reconstructed with designed custom-made prosthesis, a patient-specific finite element model of whole pelvis with primary ligaments inclusive was constructed based on the computed tomography images of the patient. Then, a finite element analysis was performed to calculate and compare the stress distribution between the normal and implanted pelvis models when undergoing three different static conditions-both-leg standing, single-leg standing for the healthy and the affected one...
June 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28629828/factors-associated-with-the-decision-of-operative-procedure-for-proximal-femoral-bone-metastasis-questionnaire-survey-to-institutions-participating-the-bone-and-soft-tissue-tumor-study-group-of-the-japan-clinical-oncology-group
#18
Nobuhito Araki, Hirokazu Chuman, Tomoya Matsunobu, Kazuhiro Tanaka, Hirohisa Katagiri, Toshiyuki Kunisada, Toru Hiruma, Hiroaki Hiraga, Hideo Morioka, Hiroshi Hatano, Kunihiro Asanuma, Yoshihiro Nishida, Koji Hiraoka, Takeshi Okamoto, Satoshi Abe, Munenori Watanuki, Takeshi Morii, Hideshi Sugiura, Yukihiro Yoshida, Takatoshi Ohno, Hidetatsu Outani, Koichiro Yokoyama, Shoji Shimose, Haruhiko Fukuda, Yukihide Iwamoto
BACKGROUND: Pathological fracture of the proximal femur is a main cause of cancer patients losing their ability to walk. Although both osteosynthetic devices (predominantly intramedullary nails) and prosthetic replacement have been widely performed for treatment, controversies exist regarding which procedure should be used for the various conditions. In order to decide the eligibility criteria of a planned randomized prospective study about the treatment of pathological fractures of the proximal femur, we assessed the factors affecting the selection of operative procedures using questionnaires sent to the members of the Bone and Soft Tissue Tumor Study Group (BSTTSG) of the Japan Clinical Oncology Group (JCOG)...
June 17, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28625797/breast-implant-associated-anaplastic-large-cell-lymphoma-from-diagnosis-to-treatment
#19
REVIEW
I Kaartinen, K Sunela, J Alanko, K Hukkinen, M-L Karjalainen-Lindsberg, C Svarvar
Breast lymphomas comprise a rare group of malignant breast tumors. Among these, a new entity has emerged as a potentially under-diagnosed disease. Breast implant-associated anaplastic large cell lymphoma (BI-ALCL) most often manifests as a late periprosthetic effusion between 1 and 10 years after the implantation of silicone or saline-filled breast prostheses. BI-ALCL is an anaplastic lymphoma kinase-negative T-cell lymphoma that has a distinctively different clinical course than other breast lymphomas or ALCLs...
August 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28598582/outcomes-of-intercalary-prosthetic-reconstruction-for-pathological-diaphyseal-femoral-fractures-secondary-to-metastatic-tumors
#20
Hong-Chao Huang, Yong-Cheng Hu, Deng-Xing Lun, Jun Miao, Feng Wang, Xiong-Gang Yang, Xin-Long Ma
OBJECTIVE: To evaluate the clinical outcomes and complications of segmental prosthetic reconstruction for pathological diaphyseal femoral fractures secondary to metastatic tumors. METHODS: Between 2011 and 2015, we retrospectively evaluated 16 patients (6 men and 10 women; 64.5 ± 11.4 years old at diagnosis) who underwent prosthetic reconstruction after segmental resection of diaphyseal femoral fractures due to metastatic lesions. Visual analog scale (VAS), functional outcomes, implant-related complications, and Mean postoperative Musculoskeletal Tumor Society (MSTS) score for each patient were collected...
May 2017: Orthopaedic Surgery
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