conversion of knee arthrodesis to total knee arthroplasty is a difficult procedure accompanied by many complications due to soft tissue and extensor mechanism contracture and bone defects. we report two cases of distal femur osteosarcoma that had been undergone wide resection arthrodesis initially. arthrodesis was converted to total knee arthroplasty with hinged prosthesis after many years. we ...

We present a case of a 15-year-old boy with osteoblastic osteosarcoma of the left distal femur. The patient was referred to bone scan for initial staging. On planar bone scan, there is increased uptake of 99mTc-MDP (99mTc-methylene diphosphonate) in the left distal femur. There are also multiple sites of abnormal tracer uptake projecting to the thoracic cage, initially assumed to be localized i...

We measured bone mineral density (BMD) in the proximal femur by dual-energy X-ray absorptiometry (DEXA) in 20 patients after cemented total hip arthroplasty over a period of one year. We found a statistically significant reduction in periprosthetic BMD after six months on the medial side and on the lateral side adjacent to the mid and distal thirds of the prosthesis. At one year after operation...

A 14-year-old competitive gymnast presented for a left distal femur epiphysiodesis. She had previously sustained a right femur fracture and was noted to have asymptomatic NSVT perioperatively, which improved while under general anesthesia (GA). Holter monitor showed NSR with uniform ventricular ectopy occurring 30% of the time, including during sleep. Echocardiography was normal and exercise te...

Background. Multifocal osteosarcoma is usually described as the occurrence of the tumour at two or more sites in a patient without pulmonary metastases and may be synchronous or metachronous. Case report. A previously well 21-year old male, who presented with a swollen, painful right knee with no history of trauma, was found to have a high-grade osteosarcoma of the distal tibia and proximal fem...

Amaç: Distal femur kırıklarında günümüzde sık kullanılan kilitli plaklar sonrasında gelişen nonunion tedavisi için retrograde intramedüller çiviler ile tedavi edilen hastalarda otogreft kullanımının kaynama süresi ve diz fonksiyonları üzerine etkisini değerlendirmek. Gereç Yöntemler: Çalışmada reamerize çivi edilmiş distal kaynaması olmayan 18 hastanın verileri retrospektif olarak incelendi. Ça...