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Osteopetrosis is a hardening of the bones that occurs at various ages depending on the type of osteopetrosis present. The benign form is the most common type and causes frequent, repeated fractures that don't heal well. Anyone with genetic mutations causing this condition can develop these symptoms.
As you've mentioned, degenerative arthritis can occur. Fractures leading to deformities cause imbalances and problems with joint alignment. Uneven load bearing and weight distribution can lead to wear and tear on the joint. Joint replacements can be done but there are special steps the surgeon must take to prevent fractures and other complications.
For example, pin and screw holes can be predrilled. Special locking plates and special nails (pins) can be used to improve fixation and load bearing. Joint implants with a shorter femoral stem may be used.
Computer-assisted fluoroscopy is advised to guide the surgeon. Fluoroscopy is a special X-ray imaging that allows the surgeon to see the bones and joints during the operation.
You should expect a longer surgical time than the patient without osteopetrosis. Extra time may also be needed for healing and rehab. Patients must be followed closely by the therapist and the surgeon. Careful planning before surgery by the health care team can help prevent problems and complications during and after the procedure.
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