Some remain in hospital tents swarming with flies; others have moved to makeshift post-surgical centers; and those who healed quickly, like Ms. Jean, have been discharged to the streets, where they now live. All need continuing care in a nation with no rehabilitation hospital, few physical therapists, no central prosthesis factory since the quake and a skeletal supply of crutches, canes and wheelchairs gradually being reinforced by donations.

“The situation for newly disabled persons is very delicate,” said Michel Péan, Haiti’s secretary of state for the integration of the disabled. “They urgently need not only medical care but food and a place to live. Also, we cannot forget those disabled before the disaster who, because of their handicap, are having trouble getting access to humanitarian aid.”

Rough estimates of the number of new amputees are based on information from overburdened hospitals that did not keep good records of surgeries. The Haitian government believes that 6,000 to 8,000 people have lost limbs or digits. Handicap International estimates that 2,000 to 4,000 Haitians underwent amputations, and many thousands more suffered complicated fractures, some of which could turn into amputations if not managed well.

Dr. Péan, who is blind and serves in a relatively new post as government advocate for people with disabilities, said that Haiti’s disabled  some 8 percent of the population even before the quake  had long been treated as second-class citizens. But the government has recently taken legal steps to recognize their rights and opened offices to serve them in the countryside, he said.

Ideally, Dr. Péan said, post-earthquake reconstruction could provide an opportunity to make Port-au-Prince, Haiti’s capital, more accessible to people with disabilities and the impetus to create a national institute for rehabilitation.