1,721,003 research outputs found
Current treatment considerations for osteosarcoma metastatic at presentation
No full textApproximately one-fourth of osteosarcoma patients have metastases at presentation. The best treatment options for these patients include chemotherapy, surgery, and radiotherapy; however, the optimal scheme has not yet been defined. Standard chemotherapy for osteosarcoma metastatic at presentation is based on high-dose methotrexate, doxorubicin, and cisplatin (the MAP regimen), with the possible addition of ifosfamide. Surgical treatment continues to be fundamental; complete surgical resection of all sites of disease (primary and metastatic) remains essential for survival. In patients whose tumors do not respond to neoadjuvant chemotherapy, early surgical resection of the primary tumor with limb-salvage surgery or amputation and multiple metastasectomies, if feasible, after the completion of adjuvant chemotherapy is a reasonable option, as the reduction of the tumor volume could probably increase the effect of chemotherapy. Advanced radiotherapy techniques, such as carbon ion radiotherapy and stereotactic radiosurgery, and molecular targeted chemotherapy with drugs such as pazopanib or apatinib have improved the dismal prognosis, especially for patients who are medically inoperable or who refuse surgery. Given that the presence of metastatic disease at diagnosis of a patient with osteosarcoma is a poor prognostic factor, a multidisciplinary approach by surgeons, medical oncologists, and radiotherapists is important
Humeral fracture between a total elbow and total shoulder arthroplasty
No full textThis article presents a case of a 71-year-old woman with a humeral fracture between a cementless reverse total shoulder arthroplasty and a cemented total elbow arthroplasty and discusses our treatment plan. Surgical treatment was performed after the patient was informed of possible complications and the benefits of surgery including: early, complete restoration of arm anatomy, greater functional improvement of the adjacent joints, and increased risk of nonunion with nonoperative treatment. The fracture was comminuted and extended proximally around the shoulder prosthesis. Through the posterior approach, the radial nerve was identified and protected. Both prostheses were found firmly fixed to bone. The fracture around the shoulder prosthesis was reduced first using a strut allograft and reduction clamps. Next, arm alignment restoration and distal humerus reduction were performed. The construct was neutralized with a 3.5-mm locking plate spanning the whole length of the humerus. The locking plate was positioned posterolaterally and the strut medially in a 90° to 90° configuration secured with wires and cables. A hinged elbow brace was applied for 6 weeks postoperatively. Active range of motion exercises of the wrist and hand and passive motion of the elbow and shoulder were started at 4 to 5 days postoperatively. At 2 weeks postoperatively, passive motion of the elbow and shoulder progressed to strengthening exercises. Thereafter, the patient underwent several weeks of physical therapy to restore motion, strength, and function of the upper extremity with instructions not to overload the arm and avoid heavy work and sports for as long as 1 year. At 10 months postoperatively, radiographs of the arm showed a stable construct; the patient had resumed full activities of daily living
Clinical out come in central conventional chondrosarcoma of bone. Analysis of 296 cases
No full textClinical out come in central conventional chondrosarcoma of bone. Analysis of 296 case
Treatment and results in 29 patients with distal tibia osteosarcoma treated with limb salvage surgery
No full textTreatment and results in 29 patients with distal tibia osteosarcoma treated with limb salvage surger
Post radiation sarcoma: a single institution experience on 52 cases
No full textPost radiation sarcoma: a single institution experience on 52 case
Recent developments in the surgical treatment of bone tumors and their impact on quality of life
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Proximal tibial resections and reconstructions: Clinical outcome of 225 patients.
No full textBackground Previous studies reported variable outcome of proximal tibial resections and reconstructions. Therefore, we evaluated the survival, Musculoskeletal Tumor Society (MSTS) function, and complications of patients and reconstructions in this location. Materials and Methods We reviewed the files of 225 patients with proximal tibial tumors treated with proximal tibial resection, fixed or rotating hinge megaprosthetic reconstruction and extensor mechanism reattachment using sutures, mechanical clamping, artificial ligaments, and/or gastrocnemius flap from 1985 to 2010 (mean follow-up, 90 months; median, 56; range, 2-294). Survival of patients and reconstructions, type of hinge, extensor mechanism reconstruction, MSTS function, and complications were analyzed. Results Survival of patients with sarcomas was 68% and 62% at 5 and 10 years. Survival of megaprosthetic reconstructions was 82% and 78% at 5 and 10 years, without any difference between fixed and rotating hinge megaprostheses. MSTS function was significantly better in univariate and multivariate analysis for rotating compared to fixed hinge megaprostheses, without any difference between the types of extensor mechanism reconstructions. Most common complications were infection (12%), aseptic loosening (6%), and extensor mechanism rupture (3%). Conclusions Rotating hinge proximal tibia megaprosthetic reconstructions have better function compared to fixed hinge, regardless of the type of extensor mechanism reconstruction
Calcific myonecrosis of the leg: A rare entity
No full textCalcific myonecrosis is a rare disease that has been shown to be a late sequela of trauma. This article presents a 68-year-old man with calcific myonecrosis of the leg 40 years after a tibial fracture complicated with peroneal nerve palsy. The soft tissue mass increased in size after another injury to the leg that occurred two years before his presentation. Physical examination at presentation showed a palpable extra-osseous mass at the anterior aspect of the left leg; the mass was not adherent to adjacent soft-tissues and bone, and it was painless but tender to palpation. Radiographs of the left leg showed extensive calcification at the soft-tissue of the anterior and posterior leg. An ultrasonography-guided trocar biopsy was done; histological findings were indicative of calcific myonecrosis. Given the benign entity of the lesion and known high rate of complications, he was recommended for no further treatment except for clinical and imaging observation. Located at the site of the biopsy, he experienced infection with drainage that eventually healed after six months with antibiotics and wound dressing changes. During the last follow-up examination, two years after diagnosis, the patient was asymptomatic without progression of the mass
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