(Fig 4-B.22) Modified Ogden Classification

https://youtu.be/w_ws8ia1p14

https://youtu.be/w63GyfUeIyw

 

 

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📌Ogden Classification System for Tibial Tubercle Fractures

The Ogden classification system categorizes tibial tubercle fractures into five types, each with subtypes describing the fracture's extent and nature.

 

1️⃣ Type I Fractures

Type I fractures involve only the distal portion of the tubercle.

• Type IA: Minimally displaced or non-displaced fracture.
• Type IB: Anterior and proximal displacement or comminution.
• Type IC: Proposed subtype for associated patellar tendon avulsions.

References:

• RadioGraphics 2009; 29:877–886
• Open Journal of Medical Imaging, 2013, 3, 90-96
• EFORT Open Rev. 2020 May 5;5(5):260-267

 

2️⃣ Type II Fractures

Type II fractures involve the entire ossification center of the tubercle.

• Type IIA: Separation of the tubercle from the proximal tibia, minimally or non-displaced.
• Type IIB: Anterior displacement and/or comminution.

References:

• RadioGraphics 2009; 29:877–886
• Open Journal of Medical Imaging, 2013, 3, 90-96
• EFORT Open Rev. 2020 May 5;5(5):260-267

 

3️⃣ Type III Fractures

Type III fractures extend through the proximal tibial epiphysis into the joint space.

• Type IIIA: Non-displaced fracture.
• Type IIIB: Comminuted fracture.

References:

• RadioGraphics 2009; 29:877–886
• Open Journal of Medical Imaging, 2013, 3, 90-96
• Radiol Clin N Am 51 (2013) 393–411
• EFORT Open Rev. 2020 May 5;5(5):260-267

 

4️⃣Type IV Fractures

Type IV fractures present with fracture extension from the tibial tuberosity through the proximal tibial physis into the posterior tibial metaphyseal cortex.

References:

• Open Journal of Medical Imaging, 2013, 3, 90-96
• EFORT Open Rev. 2020 May 5;5(5):260-267

 

5️⃣ Type V Fractures

Type V fractures consist of a combined type III and type IV avulsion fracture, resulting in an inverted “Y” configuration.

References:

• Open Journal of Medical Imaging, 2013, 3, 90-96
• EFORT Open Rev. 2020 May 5;5(5):260-267

 

Treatment Guidelines

• Type I Fractures: Usually treated with knee immobilization in complete extension.
• Type II and III Fractures: Typically require osseous fixation with pins or screws.

Reference:

• RadioGraphics 2009; 29:877–886

Further Reading

• Journal of Children’s Orthopaedics, Vol. 2, No. 6, 2008, pp. 469-474
• Clinical Orthopaedics and Related Research, No. 194, 1980, pp. 181-184
• Orthopedic Clinics of North America, Vol. 34, No. 3, 2003, pp. 397-403
• Journal of Bone and Joint Surgery (American Volume), Vol. 72, No. 9, 1990, pp. 1411-1413

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