Scaphoid pseudarthrosis

Classification according to ICD-10
M84.14	Non-union of the fracture ends [pseudarthrosis] - hand
ICD-10 online (WHO version 2019)

Scaphoid pseudarthrosis (left picture) and treatment with Herbert screw (right).

Split scaphoid bone. In some cases, especially when no injury can be remembered, it is not possible to differentiate between a pseudarthrosis and a bipartite system (os scaphoideum bipartitum). In this case, because of the harmonious contact surfaces, it is more of a split system variant.

A scaphoid pseudarthrosis is a pseudarthrosis of the scaphoid bone of the wrist.

Emergence

The navicular bone is the biomechanically most important bone of the carpal bones . A Kahnbeinpseudarthrose can in the absence of fracture healing of a fracture of the scaphoid arise. Occasionally it occurs after an undetected or insufficiently treated scaphoid fracture . The symptoms are pain in the wrist , especially the so-called tabatière or the wrist in general. In the further course, osteoarthritis can develop.

therapy

The therapy is performed surgically by removing the pseudarthrosis and the remaining defect in the navicular bone is stabilized with a bone chip from the iliac crest or bone substitute material (operation according to Matti-Russe). In addition, stabilization can be carried out with a Herbert screw , which is also used in the treatment of the scaphoid fracture.

literature

O. Russe: Fracture of the carpal navicular. J Bone Joint Surg [Am] 42-A (1960), pp. 759-768. PMID 13854612 .
Lars Nebermann, Jacek Kotas, L. Graumann, L. Perlick, Rüdiger Döhler : The therapy of scaphoid pseudarthrosis . Military Medical Monthly 45 (2001), pp. 217-218.

Individual evidence

↑ Koehler, Zimmer: Limits of the normal and the beginnings of the pathological in the X-ray image of the skeleton . Georg Thieme Verlag Stuttgart, New York, 1989, ISBN 3-13-111723-0
↑ R. v. Koppenfels, H. Frössler: Congenital and acquired divisions of the navicular bone, the patella and the sesamoid bones . Archive for orthopedic and trauma surgery 78 (1974), pp 107-121. doi : 10.1007 / BF00416882
↑ A. Dacho and others: The reconstruction of scaphoid pseudarthroses by the operation according to Matti-Russe. The trauma surgeon 107 (2004), pp. 388-396. doi : 10.1007 / s00113-004-0748-4
↑ JF Hooning van Duyvenbode et al: Pseudarthrosis of the scaphoid treated by the Matti-Russe operation. A long-term review of 77 cases. Journal of Bone and Joint Surgery, 73 (1991), pp. 603-606. PMID 2071643
^ H. Matti: On the treatment of the navicular fracture and the refracture of the patellae by sealing with cancellous bone. Zentralbl Chir 64 (1937), pp. 2353-2359.

[1] Koehler, Zimmer: Limits of the normal and the beginnings of the pathological in the X-ray image of the skeleton . Georg Thieme Verlag Stuttgart, New York, 1989, ISBN 3-13-111723-0

[2] R. v. Koppenfels, H. Frössler: Congenital and acquired divisions of the navicular bone, the patella and the sesamoid bones . Archive for orthopedic and trauma surgery 78 (1974), pp 107-121. doi : 10.1007 / BF00416882

[3] A. Dacho and others: The reconstruction of scaphoid pseudarthroses by the operation according to Matti-Russe. The trauma surgeon 107 (2004), pp. 388-396. doi : 10.1007 / s00113-004-0748-4

[4] JF Hooning van Duyvenbode et al: Pseudarthrosis of the scaphoid treated by the Matti-Russe operation. A long-term review of 77 cases. Journal of Bone and Joint Surgery, 73 (1991), pp. 603-606. PMID 2071643

[5] H. Matti: On the treatment of the navicular fracture and the refracture of the patellae by sealing with cancellous bone. Zentralbl Chir 64 (1937), pp. 2353-2359.