Abstract
We reported two cases of large osteochondritis dissecans (OCD) of the knee after skeletal maturity treated by refreshment of the original beds, drilling, and biodegradable pin fixation of the osteochondral fragments.
In the first patient, a 19-year-old male, left knee pain occurred without apparent cause, after one day he consulted our hospital. MRI of the left knee demonstrated an osteochondral defect in the medial femoral condyle and an osteochondral fragment in the intercondylar fossa. Arthroscopic examination revealed an osteochondral defect measuring about 30×20 mm in the medial femoral condyle. We refreshed the original beds and performed drilling, then fixed the osteochondral fragment with three biodegradable pins. After 8 months, the ROM of the left knee was full, and the patient was able to jog without pain.
In the second patient, a 16-year-old male, the right knee had been twisted while playing handball, and after two days, he consulted us. MRI of the right knee demonstrated an osteochondral defect in the lateral femoral condyle, the lateral discoid, and an osteochondral fragment in the intercondylar fossa. Arthroscopic examination revealed an osteochondral defect measuring about 30×20 mm in the medial femoral condyle. We fixed the osteochondral fragment with four biodegradable pins as the first case. After 7 months, the ROM of the left knee was full, and the patient was able to jog without pain.
Biodegradable pin fixation of the osteochondral fragments with refreshment of the original beds and drilling were effective for these cases of OCD.
