Anterior fusion of the lumbar spine. End-result study with long-term follow-up.

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Abstract
We reviewed the cases of fifty patients who underwent anterior lumbar-spine fusion with autogenous fibular and iliac-bone grafts and were followed for two to fifteen years. Their diagnoses were instability of the spine, degenerative disc disease, pseudarthrosis, and spondylolisthesis. Fifty-six per cent had union and 44 per cent, non-union. Those who had iliac grafts healed in an average of 2.5 years and those who had fibular grafts, in 5.2 years. The clinical result was successful in twenty-six patients (52 per cent) and unsuccessful in twenty-four patients (48 per cent). Paradoxically, about one-half of the patients with clinical successes had a non-union and one-half of the failures had union. Retrograde ejaculation (sterility) did not develop in any of the men, and a survey of world authorities on anterior spine fusion revealed only sixteen patients with the sequela of retrograde ejaculation. The incidence of that complication has been exaggerated.

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