Two types of hip disease, acetabular
dysplasia and pincer femoro-acetabular impingement, are associated with morphological abnormalities of the acetabulum, including acetabular
diameter, depth and orientation (Zeng et al., 2012).
Traumatic arthritis of the hip after dislocation and acetabular
fractures: treatment by mold arthroplasty.
The THA revisions were classified based on the type of fixation as cemented, cementless, hybrid and reverse hybrid; the component type as acetabular
, femoral, acetabular
and femoral, and head and linear; and the surface material of the implant as metal-polyethylene, metal-metal, ceramic-polyethylene, zirconium-polyethylene, and ceramic-ceramic (Table 1).
Pelvic tilt is a measurement of functional anteversion, and inclination of the pelvis can be affected by lumbosacral and hip pathologies such as scoliosis, femoroacetabular impingement, and acetabular
or femoral dysplasia, among others.
An os acetabuli is a small accessory ossification center located adjacent to the acetabular
rim present in 2-3% of the population.
The cemented acetabular
cup in Charnley arthroplasty in young and active patients has been shown to be associated with a higher degree of polyethylene wear and osteolysis at the cement bone interface.
Following a thorough review, our initial analysis revealed that 87 out of the first 100 cases were correctly registered, where acetabular
cup position matched the plan on first attempt.
Pincer-type morphologies are most prevalent in middle aged active females and are more predominantly associated with anterior acetabular
wall over coverage.
For instance, there is associated adaptive shortening of the soft tissues, capsular constriction, increased femoral anteversion, acetabular
dysplasia, presence of obstructing structures such as the fibrofatty tissue in the acetabulum, hypertrophied ligamentum teres, the transverse acetabular
ligament and fixed inversion of limbus.1-4,13,14 Femoral diaphyseal shortening is superior to traction as an aid in operative reduction of DDH in older children.
The technique was first described as just iliac and pubic osteotomy, without the ischium, and resulted in acetabular
ventroversion with lateral rotation of the ilium and ischium torsion and deformity.
debonding has been investigated in a few, small case studies [15-17], but to date, no studies have been published reporting rates of debonding in a single, large cohort.
On the acetabular
side, we used medial protrusion technique because acetabular
bone defect of the weight bearing portion was so severe .