Computer-assisted 3-dimensional anthropometry of the scaphoid.

Scaphoid fracture fixation using a cannulated headless compression screw and the Matti-Russe procedure for the treatment of scaphoid nonunions are performed routinely. Surgeons performing these procedures need to be familiar with the anatomy of the scaphoid. A literature review reveals relatively few articles on this subject. The goal of this anatomical study was to measure the scaphoid using current technology and to discuss the findings with respect to the current, relevant literature.Computed tomography scans of 30 wrists were performed using a 64-slice SOMATOM Sensation CT system (resolution 0.6 mm) (Siemens Medical Solutions Inc, Malvern, Pennsylvania). Three-dimensional reconstructions from the raw data were generated by MIMICS software (Materialise, Leuven, Belgium). The scaphoid had a mean length of 26.0 mm (range, 22.3-30.7 mm), and men had a significantly longer (P<.001) scaphoid than women (27.861.6 mm vs 24.561.6 mm, respectively). The width and height were measured at 3 different levels for volume calculations, resulting in a mean volume of 3389.5 mm(3). Men had a significantly larger (P<.001) scaphoid volume than women (4057.86740.7 mm(3) vs 2846.56617.5 mm(3), respectively).We found considerable variation in the length and volume of the scaphoid in our cohort. We also demonstrated a clear correlation between scaphoid size and sex. Surgeons performing operative fixation of scaphoid fractures and corticocancellous bone grafting for nonunions need to be familiar with these anatomical variations.

[1]  A. W. Dunn.  Fractures and dislocations of the carpus. , 1972, The Surgical clinics of North America.

[2]  O. Johnell,et al.  Long-term results of fracture of the scaphoid. A follow-up study of more than thirty years. , 1994, The Journal of bone and joint surgery. American volume.

[3]  S. Ponzer,et al.  Fracture of the carpal scaphoid. A prospective, randomised 12-year follow-up comparing operative and conservative treatment. , 2001, The Journal of bone and joint surgery. British volume.

[4]  J. Mulder.  The results of 100 cases of pseudarthrosis in the scaphoid bone treated by the Matti-Russe operation. , 1968, The Journal of bone and joint surgery. British volume.

[5]  Hideki Yoshikawa,et al.  Does Three-dimensional Computer Simulation Improve Results of Scaphoid Nonunion Surgery? , 2005, Clinical Orthopaedics and Related Research.

[6]  C. Steyers,et al.  Techniques in hand surgery , 1996 .

[7]  H. L. Mclaughlin.  Fracture of the carpal navicular (scaphoid) bone; some observations based on treatment by open reduction and internal fixation. , 1954, The Journal of bone and joint surgery. American volume.

[8]  W. Thiel,et al.  Die Konservierung ganzer Leichen in natürlichen Farben , 1992 .

[9]  J. Dias,et al.  Should acute scaphoid fractures be fixed? A randomized controlled trial. , 2005, The Journal of bone and joint surgery. American volume.

[10]  R. Streli.  [Percutaneous screwing of the navicular bone of the hand with a compression drill screw (a new method)]. , 1970, Zentralblatt fur Chirurgie.

[11]  O. Russe.  Fracture of the carpal navicular. Diagnosis, non-operative treatment, and operative treatment. , 1960, The Journal of bone and joint surgery. American volume.

[12]  F. Heatley,et al.  The Radiological Anatomy of the Scaphoid , 1994 .

[13]  Andrew D. Heinzelmann,et al.  Anthropometry of the human scaphoid. , 2007, The Journal of hand surgery.

[14]  T. Herbert,et al.  Management of the fractured scaphoid using a new bone screw. , 1984, The Journal of bone and joint surgery. British volume.

[15]  Hak Young Jeong,et al.  The Fractured Carpal Scaphoid , 1989 .

[16]  N. CERI,et al.  The Morphological and Morphometric Features of the Scaphoid , 2004, Journal of hand surgery.