Between 1977 and 1985, 170 patients suffering from chronic Achilles tendinitis were treated surgically. Ninety-one patients with 143 tendons returned for followup. The duration of preoperative symptoms averaged 18 months. In all cases, conservative treatment was first attempted but failed to alleviate symptoms. Only those patients whose lesions and symptoms were confined to the Achilles tendon segment 2 to 6 cm proximal of the insertion were included in this study. All athletes who had an insertion tendinopathy or a lesion at the musculotendinous junction were excluded from this study. The surgical procedure depended on the lesion. For 93 tendons exhibiting pure peritendinitis, treatment consisted of a simple release of the fascia cruris and the peritenon. For the 50 tendons with tendinosis, a resection of diseased tendon tissue was performed. The defect could be sutured side to side in 26 cases but in the other 24 cases, reinforcement with a turned down tendon flap was necessary because of the extensive debridement. Of the 93 cases in which only dorsal release was performed, results were considered excellent in 54 cases, good in 28, fair in 8, and poor in 3 cases. Of the 26 cases in which side-to-side suture was performed, 15 cases were rated as having excellent results, 4 as good, 4 as fair, and 3 as poor. For the 24 cases in which a turned down tendon flap procedure was performed, the result was excellent in 12 cases, good in 9, fair in 2, and poor in 1 case.(ABSTRACT TRUNCATED AT 250 WORDS)

A jumper's knee is an overload lesion of patellar or quadriceps tendon near its insertion at the lower or upper pole of the patella. If conservative treatment fails, an operation can be performed in Phase 3 where disabling symptoms, are present. The necrotic tissue in the patellar tendon is excised. The early results of this surgery are encouraging.

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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.

Nine cases in the literature and seven patients in our series with hipache due to avascular necrosis of the femoral head have been reviewed. The onset of symptoms is related to pregnancy. The high adenocortical activity during pregnancy is invoked as a possible explanation of pregnancy avascular necrosis of the femoral head. Maternal parathyroid gland hyperplasia and the elevated parathyroid hormone during pregnancy may play an additional adverse effect on bones. Mechanical stress, due to a difficult labour or excessive weight gain during the last trimester of pregnancy, may be another aetiological factor.