In a retrospective study, 21 simple bone cysts (SBC) treated by curettage (with or without bone grafting) are compared to 20 SBC treated by intralesional injections of methylprednisolone. Curettage led to 43% favourable results and 29% recurrences. Cortisone injections led to 90% favourable results and 5% recurrences. Combined therapy (curettage and injections) led to results comparable to injections only. In our experience, curettage and hydroxyapatite grafting led to 100% complete healing (only 2 cases). We recommend intralesional methylprednisolone injections because the method is easy, effective and safe.

An avulsion of the anterior cruciate of an 11 year old girl was internally fixed with a transepiphysial screw. Two years later, anterior epiphysiodesis was evident, causing hyperextension of the knee. To avoid this complication, we recommend early removal of transepiphysial metalwork in children. Arthroscopical intrafocal fixation is proposed as a safe alternative.

Twenty-eight posterior tibial tendon transfers through the interosseous membrane were performed to correct spastic equinovarus. All patients improved their gait, and 82% discarded their brace. Foot striking at the beginning of the stance phase was good or satisfactory in 82%; 68% had a neutral position of the heel. The overall score was good in 68%, satisfactory in 21%, and poor in 11%. The main requirements for obtaining good results with this type of transfer are: no fixed varus deformity preoperatively, age at operation between 5 and 10 years, and reinsertion near the midline of the foot.