--Disease Characteristics-- Diagnosis of residual Dupuytren's disease with fixed flexion deformity of the fingers of at least 20-30 degrees caused by a palpable cord Positive table top test (inability to simultaneously place affected finger and palm flat against a table top) --Prior/Concurrent Therapy-- Surgery: At least 30 days since surgery for Dupuytren's disease Other: At least 30 days since prior investigational drug --Patient Characteristics-- Hematopoietic: No history of hematologic disease Hepatic: No history of hepatic disease Renal: No history of renal disease Cardiovascular: No congestive heart failure within 6 months No angina within 6 months No myocardial infarction within 6 months Pulmonary: No history of respiratory disease Other: HIV negative Not immunocompromised No history of significant illness, e.g., endocrine or neurologic disease No history of illicit drug abuse or alcoholism within 1 year No psychosis At least 2 weeks since infectious illness No chronic or debilitating disease No IgE antibodies to collagenase greater than 15 ng/mL No known allergy to collagenase or any of the inactive ingredients in the injection Not pregnant or nursing Fertile patients must use effective contraception