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J Am Acad Orthop Surg, Vol 13, No 5, September 2005, 336-344.
© 2005 the American Academy of Orthopaedic Surgeons
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Mallet Finger

Anup A. Bendre, MD, Brian J. Hartigan, MD and David M. Kalainov, MD

Dr. Bendre is Orthopaedic Surgeon, OAD Orthopaedics, Warrenville, IL. Dr. Hartigan is Assistant Professor of Clinical Orthopaedic Surgery, Department of Orthopaedic Surgery, Northwestern University, Feinberg School of Medicine, Northwestern Center for Orthopedics, Chicago, IL. Dr. Kalainov is Assistant Professor of Clinical Orthopaedic Surgery, Department of Orthopaedic Surgery, Northwestern University, Feinberg School of Medicine, Northwestern Center for Orthopedics.

None of the following authors or the departments with which they are affiliated has received anything of value from or owns stock in a commercial company or institution related directly or indirectly to the subject of this article: Dr. Bendre, Dr. Hartigan, and Dr. Kalainov.

Reprint requests: Dr. Bendre, OAD Orthopaedics, 27650 Ferry Road, Warrenville, IL 60555-3845.

Mallet finger involves loss of continuity of the extensor tendon over the distal interphalangeal joint. This common hand injury results in a flexion deformity of the distal finger joint and may lead to an imbalance between flexion and extension forces more proximally in the digit. Mallet injuries can be classified into four types, based on skin integrity and the presence or absence of bony involvement. Although various treatment protocols have been proposed, splinting of the distal interphalangeal joint for 6 to 8 weeks has yielded good results while minimizing morbidity in the majority of patients. Surgical management may be considered for acute and chronic mallet lesions in patients who have failed nonsurgical treatment, are unable to work with the splint in position, or have a fracture involving more than one third of the joint surface.






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