Kienbock's Disease

Kienbock's Disease: A Comprehensive Overview

Kienbock's disease is a rare bone disorder affecting the lunate, one of the eight small bones in the wrist. It is characterized by avascular necrosis (bone tissue death) due to interrupted blood supply, primarily affecting men aged 20-40 and rarely occurring in both wrists.

Etiology and Risk Factors:

Trauma to the wrist
Uneven forearm bone lengths (shorter ulna compared to radius)
Irregular lunate bone shape
Medical conditions compromising blood supply

Disease Progression:

Initial blood supply loss with minor symptoms
Lunate bone hardening
Bone fragmentation and partial collapse
Complete bone collapse affecting surrounding structures

Clinical Manifestations:

Wrist pain and tenderness
Limited movement
Stiffness and swelling
Decreased grip strength

Diagnostic Approach:

X-ray imaging
MRI scans
Arthroscopic procedures

Treatment Strategies:

Anti-inflammatory medications
Wrist immobilization (cast or splint)
Surgical interventions:
- Bone shortening
- Joint fusion
- Nerve intervention

Prognosis: While no complete cure exists, appropriate treatment can provide long-term pain relief and preserve wrist function.

References:

[1] Lichtman DM, Lesley NE, Simmons SP. The classification and treatment of Kienbock's disease: the state of the art and a look at the future. J Hand Surg Eur Vol. 2010 Sep;35(7):549-54. doi: 10.1177/1753193410374690. Epub 2010 Jul 9. PMID: 20621943. [L]

[2] Schuind F, Eslami S, Ledoux P. Kienbock's disease. J Bone Joint Surg Br. 2008 Feb;90(2):133-9. doi: 10.1302/0301-620X.90B2.20112. PMID: 18256076. [L]

[3] Allan CH, Joshi A, Lichtman DM. Kienbock's disease: diagnosis and treatment. J Am Acad Orthop Surg. 2001 Mar-Apr;9(2):128-36. doi: 10.5435/00124635-200103000-00006. PMID: 11281636. [L]

[4] Danoff JR, Cuellar DO, O J, Strauch RJ. The Management of Kienböck Disease: A Survey of the ASSH Membership. J Wrist Surg. 2015 Feb;4(1):43-8. doi: 10.1055/s-0035-1544225. Erratum in: J Wrist Surg. 2015 May;4(2):148. doi: 10.1055/s-0035-1550427. PMID: 25709878; PMCID: PMC4327716. [L]

Kienbock's Disease

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