Bone: Tuberosity of the tibia
Lateral aspect of right leg. (Tuberosity of tibia labeled at center right.)
Upper surface of right tibia. (Tuberosity labeled at top.)
Latin	tuberositas tibiae
Gray's	subject #61 256

The tuberosity of the tibia or tibial tuberosity or tibial tubercle is a large oblong elevation on the proximal, anterior aspect of the tibia, just below where the anterior surfaces of the lateral and medial tibial condyles end.

Contents 1 Structure 2 Fractures 3 See also 4 Additional images 5 Notes 6 References

[edit] Structure

It gives attachment to the patellar tendon, which attaches to the patella from where the suprapatellar ligament forms the distal tendon of the quadriceps femoris muscles. The tibial tuberosity thus forms the terminal part of the large structure that acts as a lever to extend the knee-joint. The two ligaments, the patella, and the tibial tuberosity are all superficial, easily palpable structures. ^[1]

[edit] Fractures

Tibial tuberosity fractures are infrequent fractures mostly common in adolescents. In running and jumping movements, extreme contraction of the knee extensors can result in avulsion fractures of the tuberosity apophysis. ^[2]

[edit] See also

• Osgood-Schlatter disease

[edit] Additional images

Bones of the right leg. Anterior surface.

Front and medial aspect of right thigh.

[edit] Notes

[edit] References

• Cipriano, Joseph J. (2002). Photographic Manual of Regional Orthopaedic and Neurological Tests. Lippincott Williams & Wilkins. ISBN 0781735521. http://books.google.se/books?id=nlUR1toYU8UC&pg=PA356. 
• Lau, Kelvin; Ramachandran, Manoj (2006). "Tibial Tubercle Fracture". eMedicine. http://emedicine.medscape.com/article/1250197-overview. Retrieved December 2008. 

v • d • e Bones of lower limbs (TA A02.5.04-18, GA 2.242-277) Femur upper extremity head (fovea) · neck · greater trochanter (trochanteric fossa) · lesser trochanter · intertrochanteric line · intertrochanteric crest · quadrate tubercle body linea aspera · gluteal tuberosity / third trochanter · pectineal line lower extremity adductor tubercle · patellar surface · epicondyles (lateral, medial) · condyles (lateral, medial) · intercondylar fossa Crus Tibia upper extremity Gerdy's tubercle · condyles (lateral, medial) · intercondylar eminence (lateral/medial intercondylar tubercle) · posterior/anterior intercondylar area body tuberosity · soleal line lower extremity medial malleolus · fibular notch Fibula head · body · lateral malleolus Other patella (apex of patella) Foot Tarsus calcaneus (sustentaculum tali, trochlear process) · talus (body, neck, head) · navicular · cuboid · cuneiform (medial, intermediate, lateral) Metatarsus 1st metatarsal · 2nd · 3rd · 4th · 5th Other phalanges of the foot

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