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Biomedical subjects

Michael Betsy

Publications and source records attributed to Michael Betsy.

2 recordsLinked to original sources

The human form: accepting the prioritization of patient values.

A seventeen-year-old boy who had had a subtotal femoral reconstruction because of an osteosarcoma in the left femur, and a subsequent revision for hardware failure, was again having severe pain secondary to failure of the endoprosthesis. The patient's original orthopaedic oncologist, who had performed both previous operations, recommended that the patient have an above-the-knee amputation. The patient and his parents inquired about the Van Nes rotationplasty. They were told directly that it was an antiquated procedure that was not done anymore. The prosthetist with whom they were working gave them the name of an orthopaedic oncologist who could perform the Van Nes procedure. They traveled 850 miles for a consultation, and the patient underwent the procedure. Several months after the operation, the patient walked with a slight limp and looked like a perfectly normal teenager in a pair of jeans. On examination, he had a well-fitted below-the-knee prosthesis attached to his foot, which was in nearly 160 degrees of what was essentially plantar flexion, perfectly matching the attitude of a knee as it couples to a below-the-knee prosthesis. The boy and his parents, who had decided months earlier to opt for an uncommonly performed procedure that would give him a chance at a "normal" appearing and functioning limb, deemed the surgery a complete success with an "excellent" outcome.

Adolescent↗

Metaphyseal fibrous defects.

Nonossifying fibromas and fibrous cortical defects are the most common benign lesions of the skeletal system. They are frequently detected incidentally on radiographs taken for an unrelated reason. The diagnosis is routinely made solely on the basis of the history, physical examination, and radiographic appearance. The incidence of multifocal nonossifying fibroma is typically underestimated in patients initially found to have a solitary lesion; the use of a limited skeletal survey rather than bone scan may help detect multifocal lesions in this population. Small, asymptomatic lesions may be followed over time using serial radiographs. Incisional biopsy, curettage, and bone grafting are indicated for large lesions that raise concern for impending pathologic fracture, for lesions that have become painful, and for lesions whose characteristics prevent a definitive radiographic diagnosis. Pathologic fractures involving these lesions should be treated with cast immobilization until the fracture has healed, followed by biopsy, curettage, and bone grafting.

Adolescent↗