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Fusion Times for all bones
Fun Times with Fusion Ages
78
Anatomy
Post-Graduate
10/27/2014

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Cards

Term
Coronoid fuses with main mass
Definition
Week 8
Term
Lower edges of the 2 leaves of Vomer fuse
Definition
Week 11 - 12
Term
Palatal processes fuse
Definition
Week 18
Term
Goniale fuses to malleus
Definition
Week 19
Term
Posterior segment of ring fuses to squamous part
Definition
Week 35
Term
Suture Mendosa fuses ( not obliterated)
Definition
1 - 4 months
Term
Supra-occipital and interparietal parts of squama fuse
Definition
By month 5
Term
Sphenoid Lesser wings usually fused to body
Definition
By month 5
Term
Suture Mendosa fuses
Definition
5 - 11 months
Term
Pterygoid plates fused to greater wings;Pre- and post sphenoid parts of body fused together
Definition
By month 8
Term
Cribriform plate and crista galli ossify and fuse with labyrinth
Definition
1 -2 years
Term
Neural Fusion (L1-L5)
Definition
1 - 5 years
Term
Fusion of pars lateralis to squama
Definition
1 -3 years
Term
Fusion at symphysis (Mandible)
Definition
During 1 year
Term
Posterior fusion of the laminae commences in the thoracic and lumbar regions
Definition
During 1 year
Term
Median sagittal suture and remains of suture mendosa close
Definition
During 1 year
Term
Greater wings fuse to body (Sphenoid)
Definition
1 year
Term
Sutura Intra-Occipitalies Posterior fuses
Definition
2 - 4 years
Term
Elements fuse within each sacral level (Sacrum)
Definition
2 - 6 years
Term
Fusion of posterior synchondrosis in C 3 -7
Definition
2 years
Term
Fusion of posterior synchondrosis of axis and dentoneural synchondrosis
Definition
3 -4 years
Term
Neurocentral fusion in C3-7, all thoracic and lumbar vertebrae
Definition
3 -4 years
Term
Neurocostal fusion in S1 and S2
Definition
3 -4 years
Term
Sternum 3-4 fuse
Definition
4 - 15 years
Term
Posterior fusion of the atlas
Definition
4 -5 years
Term
Dentocentral fusions commencing in the axis
Definition
4 - 5 years
Term
Sphenoidal conchae fuse to ethmoid
Definition
4 years - Puberty
Term
Neurocentral fusion (C3-7)
Definition
By 4 years
Term
Neurocentral fusion in the axis
Definition
5 -6 years
Term
Primary centres fused in all sacral segments
Definition
5 -6 years
Term
Anterior arch of atlas fuses
Definition
5 -6 years
Term
Fusion of pars basilaris and pars lateralis
Definition
5 - 7 years
Term
Neurocentral fusion
Definition
By 5 years
Term
Dentoneurocentral fusion (C2)
Definition
By 6 years
Term
Neurocentral fusion (T1-T12)
Definition
By 6 years
Term
Fusion of arches (C1)
Definition
6+ years
Term
Continue fusion of posterior synchondrosis in sacral region
Definition
10 years
Term
Fusion of spheno-occipital synchondrosis female
Definition
11 - 16 years
Term
Sternum 2 fuses to 3-4
Definition
11 - 21 years
Term
Lateral elements from different levels fuse (Sacrum)
Definition
12 - 14 years
Term
Fusion of proximal epiphysis fuses in male (Ulna)
Definition
12 - 16 years
Term
Fusion of proximal epiphysis fuses in females (Radius)
Definition
12 - 17 years
Term
Dens complete following fusion of ossiculum terminale
Definition
12 years
Term
Fusion of medial epipcondyl fuses to shaft in females (Humerus)
Definition
13 - 16 years
Term
Fusion of spheno-occipital synchondrosis male
Definition
13 - 18 years
Term
Fusion of proximal and distal epiphysis in females ( Fibula)
Definition
14 - 18 years
Term
Fusion of distal epiphysis in females (Tibia)
Definition
14 - 18 years
Term
Head , Greater Trochanter , Lesser Trochanter fuse in females (Femur)
Definition
14 - 18 years
Term
Fusion of proximal ephiphysis fuses in males (Radius)
Definition
14 - 19 years
Term
Fusion of proximal epiphysis fuses in females (Ulna)
Definition
14 - 19 years
Term
Fusion of distal epiphysis fuses in females (Radius)
Definition
14 - 20 years
Term
Fusion of proximal epiphysis fuses in females (Humerus)
Definition
14 - 20 years
Term
Fusion of distal epiphysis fuses in females (Femur)
Definition
14 - 20 years
Term
Fusion of distal epiphysis fuses in females (Ulna)
Definition
15 - 20 years
Term
Fusion of proximal and distal epiphysis in males (Fibula)
Definition
15 - 21 years
Term
Sternum 1 fust to rest of mesosternum; ephiphysis continue to fuse
Definition
15 - 26 years
Term
Fusion complete between coracoid, sucoracoid, body and glenoid (Scapula)
Definition
16 - 18 years
Term
Fusion of proximal ephiphysis in females (Tibia)
Definition
16 - 19 years
Term
Fusion of distal epiphysis fuses in males (Tibia)
Definition
16 - 19 years
Term
Fusion of distal epiphysis fuses in males (Radius)
Definition
16 - 20 years
Term
Head , Greater Trochanter , Lesser Trochanter fuse in males (Femur)
Definition
16 - 20 years
Term
Fusion of proximal ephiphysis fuses in males (Humerus)
Definition
16 - 21 years
Term
Fusion of proximal epiphysis in males (Tibia)
Definition
16 - 21 years
Term
Fusion of distal epiphysis fuses in males (Femur)
Definition
16- 21 years
Term
Fusion of distal epiphysis in males (Ulna)
Definition
17 - 21 years
Term
Fusion of flake commences at medial extermity (Clavicle)
Definition
17 - 23 years
Term
Epiphysis appear and fuse for head region (Ribs)
Definition
17 - 25 years
Term
Lateral and central fusion in a caudocranial direction
Definition
Puberty
Term
Epiphyses appear and fusion completed (C2 all the way through L5)
Definition
Puberty to early 20s
Term
Ethmoid and vomer fuse
Definition
20 - 30 years
Term
Vomer normally fuses with perpendicular plate of ethmoid
Definition
20 - 30 years
Term
Fusion of acromial (Scapula)
Definition
20 years
Term
Most epiphysis fused, except for fusion between bodies of S1 and S2
Definition
early 20s
Term
Fusion complete at both inferior angle and along medial border (Scapula)
Definition
23 years
Term
All epiphyseal plates in coastal notches have fused (Sternum)
Definition
25+ years
Term
Bodies of S1 and S2 complete fusion along ventral border
Definition
25+ years
Term
Fusion of medial epiphysis will be complete in all individuals (Clavicle)
Definition
29 years
Term
Xiphoid process commences fusion to mesosternum
Definition
40+ years
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