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Materials
Fixation
Prosthesis Types
 Total Hip 
 Hemi
 Revision 
Radiography
Baseline Exam
 Alignment
 -Acetab. Position
 -Inclination
 -Anteversion
 -Center of Rotation
 -Femoral Stem 
 -Leg Length Discr.
 Intra-op- Fractures 
 Cement Herniation
Follow-up Study
 Bony Abnormalities
 Fracture
 Heterotopic Bone
 Non Union
 Hardware Failure
 -Polyethylene Wear
 -Dislocation
 Osteolysis
 Loosening
 Infection
Arthrography
CT and MRI
References

Acetabular Component Anteversion

• Cup should be anteverted 15 +/- 10 degrees.
• Anteversion is difficult to accurately evaluate on radiographs, and can only be qualitatively assessed on a groin lateral view. This view is difficult to obtain, especially in the elderly or post operative patient, and is effected by pelvic or thigh rotation.
• CT is the imaging modality of choice to evaluate for anteversion

The right cup is normally anteverted, the left cup anterior and posterior rims are far apart, suggesting excessive anteversion.

R

L

Groin lateral films: R cup normal anteversion, L cup excessive anteversion

FEMORAL COMPONENT
ANTEVERSION

Femoral component should be anteverted. Exact degree of optimal anteversion is unknown

Femoral neck anteversion is difficult to accurately evaluate on radiographs, and can only be qualitatively assessed on a groin lateral view. This view is difficult to obtain, especially in the elderly or post operative patient, and is effected by pelvic or thigh rotation.

CT is the imaging modality of choice to evaluate for femoral neck anteversion.

Femoral neck anteversion on groin lateral film.

Version of acetabular and femoral components may be cumulative. Therefore, a retroverted cup can be compensated by an anteverted femoral component