TT-TG distance decreases after open wedge distal femoral varization osteotomy in patients with genu valgum & patellar instability. A pilot 3D computed tomography simulation study.

Background: Genu valgum is considered to be a risk factor for patellar instability. Correction of valgus alone or combined with a tibial tuberosity medialization has been described. However, changes occurring in the tibial tuberosity-trochlear groove (TT-TG) distance after a lateral distal femoral opening wedge osteotomy (LDF-OWO) are not known.

[Development of osteonecrosis after arthroscopic meniscal and chondral knee surgery: a report of five cases].

The development of osteonecrosis after arthroscopic surgery has been associated with meniscectomy, chondral surgery, and the use of thermal energy. This paper presents five cases, four of which fulfilled the temporal criteria for postarthroscopy necrosis, i.e.

Pedunculated synovium grafts in articular cartilage defects in rabbits.

A rabbit model was used to assess the nature of healing tissues in hyaline cartilage defects and to compare the healing in defects treated with pedunculated synovium grafts to those in defects without synovial grafting. Both knees of 28 1-year-old rabbits were operated. A 3 x 2-mm cartilage defect that exposed cancellous bone was created in the non-weight-bearing area of each medial femoral condyle.

Multilevel vertebral hemangiomas: two episodes of spinal cord compression at separate levels 10 years apart.

This case report presents a 66-year-old woman with multiple vertebral hemangiomas causing spinal cord compression at different levels with a long symptom-free interval between episodes of compression. She presented with back pain and progressive weakness and numbness in her lower limbs for 3 months. Ten years earlier, she had had a symptomatic T4 vertebral hemangioma operated successfully, and had made a full recovery.

Is prematurity important in ultrasonographic hip typing?

The aim of this study was to determine whether prematurity is important with respect to hip typing and planning of treatment/follow-up in newborns assessed with the Graf's ultrasonography method. Between January 1998 and 2003, 1592 neonates; preterm (n=432) and term (n=1160), had their hips ultrasonographically evaluated with Graf typing. There were no statistical differences between the two groups with respect to the numbers of hips that required follow-up assessment, or treatment.