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Journal: Eklem hastalıkları ve cerrahisi = Joint diseases & related surgery

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Untreated articular cartilage defects may lead to chronic joint degeneration and functional disability. In the past decade, several cartilage repair techniques have emerged for the treatment of cartilage lesions. Among these techniques, mosaicplasty was introduced by the senior author into the clinical practice in 1992. This article does not intend to give a review or a comparison of currently existing surgical techniques which aim to repair symptomatic focal defects; however, it focuses on the procedures used in the everyday practice in the authors' institute, namely microfracture, mosaicplasty, autologous chondrocyte implantation (ACI), osteochondral allograft transplantation and biodegradable osteochondral scaffolds. It gives a brief summary of these well-described techniques, summarizes the authors' clinical experience and available data on the clinical outcome, and the rehabilitation protocol following different procedures, with a special emphasis on mosaicplasty.

Concepts: Cartilage, Knee, Organ transplant, Knee cartilage replacement therapy, Autologous chondrocyte implantation, Chondrocyte, Articular cartilage damage, Articular cartilage repair

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This study aims to investigate if there is any crosstalk between subchondral bone, cartilage, and meniscus in the pathogenesis of osteoarthritis.

Concepts: Bone, Chondroitin sulfate, Bone marrow, Cartilage, Knee

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This study aims to investigate whether the axial shape of the distal femur is different between normal and osteoarthritic female knees using statistical shape analysis.

Concepts: Femur, Statistical shape analysis

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This study aims to investigate the effects of surgical approach on the clinical and radiological outcomes, the incidence of avascular necrosis (AVN), and the need for revision surgery in children undergoing open reduction via medial or anterior approach for developmental dysplasia of the hip (DDH).

Concepts: Medicine, Surgery, Child, Hip, Avascular necrosis, Debridement

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This study aims to evaluate the relationship of early-term radiological changes with development of the hip joint after Pemberton osteotomy.

Concepts: Hip, Synovial joint, Joints

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This study aims to investigate the effect of accompanying ulnar styloid fracture (USF) on clinical outcomes and hand-wrist muscle strength in conservatively treated active patients after displaced distal radius fracture (DRF).

Concepts: Osteoporosis, Muscle, Ulna, Wrist, Distal radius fracture, Bone fractures, Conservatism

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This study aims to evaluate patients diagnosed with malignant fibrous histiocytoma and investigate the possible prognostic factors associated with duration of survival.

Concepts: Medical terms, Malignant fibrous histiocytoma

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A 90-year-old female patient was admitted to our clinic complaining of pain in her left hip which occurred due to fall from a chair. Her medical history included memory loss and mental changes associated with Alzheimer’s disease and depression. Patient’s cooperation and orientation were weak. Range of motion of the left hip was restricted and painful. Radiographs of the left hip demonstrated subtrochanteric comminuted fracture of femur. Laboratory tests revealed anemia and liver insufficiency. Departments of internal medicine and anesthesiology reported high risk for surgery. Surgery was performed under spinal anesthesia on radiolucent table and in supine position. Using fluoroscopy, subtrochanteric comminuted fracture of femur was reduced. Proximally, two Schanz screws were placed through femoral neck and head in axial plane, and distally, three Schanz screws were placed through femoral shaft in coronal plane. Finally, fixation of the screws was achieved with an external fixator which was made of carbon fiber rods. Patient was allowed to sit in the bed and move around with a wheelchair as of the day of surgery. No infection or loosening of fixator occurred.

Concepts: Alzheimer's disease, Medicine, Bone fracture, Hip fracture, Surgery, Physician, Anesthesia, Anatomy

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In this article, we report a rarely localized sacral aneurysmal bone cyst (ABC) successfully treated by curettage and bone grafting with fresh frozen fibular allograft (FFA) in a 14-year-old girl patient. The cyst was at S1-2 level and treated with aggressive curettage and bone grafting with two FFAs. All complaints of the patient resolved at the 24th month of treatment and bony union of the cystic cavity was observed radiologically. Curettage and FFA may be safely used for filling the cavity in the treatment of sacral ABC in pediatric age to provide a structural and biological reinforcement.

Concepts: Patient, Pediatrics, Cyst, Aneurysmal bone cyst, Cavity wall insulation

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Osteoblastoma is a rare, bone-forming tumor, characterized by osteoid and woven bone production. A 13-year-old boy patient presented to our clinic with complaint of pain in his left proximal tibia. We performed curettage and bone grafting for the lesion diagnosed as osteoblastoma. Two years later, the patient admitted to the hospital with a mass in the same region which was diagnosed by biopsy to be osteosarcoma. Patient was performed reconstruction operation with local resection and mega prosthesis. Fourteen months after termination of chemotherapy, lung metastasis developed and the patient died consequently. In this article, we reported a patient with aggressive osteoblastoma of the left proximal tibia which recurred as an osteosarcoma and discussed the difficulties in the histopathological diagnosis and management of these patients. As some other cases in the literature, our case indicates that osteoblastomas may undergo malignant transformation.

Concepts: Bone, Cancer, Metastasis, Oncology, Medical terms, Patient, Hospital, Anatomical pathology