Fig 2.

MRI of the right hip before and after capsular reconstruction with an Achilles allograft. Left column shows sagittal, coronal, and axial views of the hip joint, respectively, prior to surgery with the deficient anterior capsule (yellow arrows). Some proximal capsular stump can be visualized at its insertion beneath the anterior inferior iliac spine (AIIS) (yellow asterisks). MRI of the same hip 6 weeks post-op (D-F) and 12 months post op (G-I). Intra-articular fluid is fully contained and anterior capsular congruity has been re-established, as indicated by the white arrows. Proximal fixation anchors are indicated by the white asterisks. Black artifacts (seen mainly in D-F) represent suture and knots. (FH, femoral head; MRI, magnetic resonance image.)