A
 
                  

                    
B
                  

                    
C
                  

                    
D
                  

                    
E
                  

                    
F
                  

                    
G
                  

                    
H
                  

                    
I
                  

                    
J
                  

                    
K
                  

                    
L
                  

                    
M
                  

                    
N
                  

                    
O
                  

                    
P
                  

                    
Q
                  

                    
R
                  

                    
S
                  

                    
T
                  

                    
U
                  

                    
V
                  

                    
W
                  

                    
X
                  

                    
Y
                  

                    
Z
                
              
              
Hemi vertebra - a
              congenital anomaly of the spine caused by incomplete development
              of one side of a vertebra resulting in a wedge shape.
              
Herniated Nucleus Pulposus (HNP) - Displacement of nuclear material and other disc
              components beyond the normal confines of the annulus. Four degrees
              os displacement are recognized : herniation, protrusion, extrusion
              and sequestration.
              
Hydromelia - Pathological
              condition in which there is an expansion of the central canal
              of the spinal cord with increased cerebrospinal fluid accumulation.
              
Hyperkyphosis - A
              kyphosis of the thoracic spine greater than the normal range.
              
Hypokyphosis - A
              kyphosis of the thoracic spine less than the normal range
              
Hyperlordosis - A
              lordosis greater than the normal range.
              
Hypolordosis - A
              lordosis of the spine less than the normal range.
              
Hypertrophic - Enlargement
              of an organ or part of an organ due to an increase in its constituent
              cells.
              
Hysterical scoliosis - a non-structural deformity
              of the spine that develops as a manifestation of a psychological
              disorder.