From: Congenital limb deficiency in Japan: a cross-sectional nationwide survey on its epidemiology
 | Upper limbs | Lower Limbs | Total | |||||
---|---|---|---|---|---|---|---|---|
 | Number of deficiencies | % |  | Number of deficiencies | % | Number of deficiencies | % | |
Longitudinal | Radial deficiency | 110 | 24.9 | Tibial deficiency | 33 | 17.2 | Â | Â |
Ulnar deficiency | 27 | 6.1 | Fibular deficiency | 37 | 19.3 | Â | Â | |
Not classifiable | 1 | 0.2 | Not classifiable | 1 | 0.5 | Â | Â | |
Subtotal | 138 | 31.2 | Subtotal | 71 | 37.0 | 209 | 33.0 | |
Transverse | Shoulder, Upper arm, Elbow | 16 | 3.6 | Hip, Thigh, Knee | 2 | 1.0 | Â | Â |
Forearm, Wrist | 41 | 9.3 | Lower leg, Ankle | 4 | 2.1 | Â | Â | |
Hand | 141 | 31.9 | Foot | 54 | 28.1 | Â | Â | |
Unknown | 3 | 0.7 | Unknown | 1 | 0.5 | Â | Â | |
Subtotal | 201 | 45.5 | Subtotal | 61 | 31.8 | 262 | 41.3 | |
Intercalary | Phocomelia | 5 | 1.1 | Proximal femoral focal deficiency | 7 | 3.6 | Â | Â |
Subtotal | 5 | 1.1 | Subtotal | 7 | 3.6 | 12 | 1.9 | |
Central | Split hand | 75 | 17.0 | Split foot | 32 | 16.7 | Â | Â |
Subtotal | 75 | 17.0 | Subtotal | 32 | 16.7 | 107 | 16.9 | |
Other finger column deficiency | Â | 23 | 5.2 | Â | 21 | 10.9 | 44 | 6.9 |
Total | Â | 442 | 100 | Â | 192 | 100 | 634 | 100 |