The document lists 10 common sites of avulsion fractures caused by the tearing away of tendons or ligaments from bone. It identifies the specific muscles or tendons that can cause avulsion fractures at the iliac crest, ischial tuberosity, greater trochanter, lesser trochanter, posterior calcaneus, olecranon process, superior patella, inferior patella, and tibial tuberosity.

1. Site of avulsion fractures
Box 43.1 David Sutton- diagnostic imaging Text book
Presented by
Dr Laith fadhel
MBchB, P.G.C.R
March 18, 20141

2. March 18, 20142
Muscle originSite of avulsion fracture
SartoriusAnt -superior – iliac crest
Rectus femorisAnt- inferior – iliac crest
HamstringsIschial tuberosity
GlutealsGreater Trochanter
IliopsoasLesser Trochanter
Achilles tendonPosterior Calcaneus
TricepsOlecranon process
QuadricepsSuperior Patella
Patella LigamentInferior Patella ( sinding –Larsen )
Patella LigamentTibial tuberosity ( Osgood – schlatter )

3. March 18, 20143

4. March 18, 20144

5. 1. Sartorius
Ant -superior – iliac
crest
March 18, 20145

6. 2. Rectus femoris
Ant- inferior –iliac crest
March 18, 20146

7. 3. Hamstrings
Ischial tuberosity
March 18, 20147

8. 4. Gluteals
Greater Trochanter
March 18, 20148

9. 5. Iliopsoas
Lesser Trochanter
March 18, 20149

10. 6. Achilles tendon
Posterior Calcaneus
March 18, 201410

11. 7. Triceps
Olecranon process
March 18, 201411

12. 8. Quadriceps
Superior patella
March 18, 201412

13. 9. Patella Ligament
Sinding – Larsen
Inferior patella
March 18, 201413

14. 10. Patella ligament
Osgood – schlatter
Tibial tuberosity
March 18, 201414