24 Questions
A study found that men have a higher incidence of hip dislocation after THA compared to women.
False
Lumbar spine DJD is a predictor of postoperative complications in THA.
True
Pelvic tilt and spinopelvic characteristics do not influence hip dislocation after THA.
False
Spine fusion is a common approach for THA in patients with lumbar spine DJD.
False
Women have lower hip torque during internal rotation activities compared to men.
False
Surgeons use standardized criteria to determine the need for dual mobility articulations in THA.
False
Lumbar spine DJD is accurately determined using sitting and standing radiographs.
True
Postoperative complications after THA are independent of lumbar spine DJD and pelvic kinematics.
False
Patients with lumbar spine DJD had 10 less pelvic tilt when sitting compared to those without lumbar spine DJD.
False
The presence of lumbar spine fusion was not a predictor of dislocation in primary THA cases.
False
Men were more likely to experience dislocation in primary THA cases.
False
A higher femoral head to acetabular cup ratio was associated with a lower risk of dislocation.
False
Patients with lumbar spine DJD had 7 more lumbar lordosis when standing compared to those without lumbar spine DJD.
False
The posterior surgical approach was not a predictor of dislocation in primary THA cases.
False
Fracture as a primary diagnosis for THA was not associated with a higher risk of dislocation.
False
The study did not identify any predictors of dislocation within a heterogeneous cohort of primary THA cases.
False
The presence of degenerative lumbar spine disease is a predictor of dislocation following total hip arthroplasty.
True
Prior lumbar spinal fusion is associated with a decreased risk of dislocation and revision in total hip arthroplasty.
False
The posterior surgical approach is associated with a lower risk of dislocation compared to the lateral approach in total hip arthroplasty.
False
Spinopelvic imbalance is a causative factor for dislocation following total hip arthroplasty.
True
The presence of lumbar spine degenerative joint disease is not a predictor of dislocation following total hip arthroplasty.
False
The pelvic tilt and spinopelvic characteristics do not influence the outcome of total hip arthroplasty.
False
The surgical approach used in total hip arthroplasty has no impact on the postoperative complication rate.
False
A simple hip-spine classification system can be used to predict the risk of dislocation following total hip arthroplasty.
True
Study Notes
Predictors of Dislocation in Primary THA
- Presence of lumbar spine degenerative joint disease (DJD) or fusion is a predictor of dislocation in primary total hip arthroplasty (THA)
- Posterior surgical approach is a predictor of dislocation in primary THA
- Fracture as a primary diagnosis for THA is a predictor of dislocation
- Women are more likely to experience dislocation after THA
- Lower femoral head to acetabular cup ratio is a predictor of dislocation
Lumbar Spine DJD and Spinopelvic Characteristics
- Patients with lumbar spine DJD have 5° more posterior pelvic tilt and 7° less lumbar lordosis while standing compared to those without lumbar spine DJD
- Patients with lumbar spine DJD have 4° less pelvic tilt when sitting and 10° more femoroacetabular flexion when moving from standing to sitting
- Differences in lumbar and pelvis kinematics have been reported between women and men
- Native anatomical differences and increased hip torque in women during internal rotation activities may contribute to easier dislocation
Other Factors Influencing Dislocation
- Spinopelvic imbalance may be a causative factor in dislocation following total hip arthroplasty
- Prior lumbar spinal fusion is associated with an increased risk of dislocation and revision in total hip arthroplasty
This quiz evaluates the relationship between lumbar spine degenerative joint disease (DJD) and surgical outcomes, including dislocations and revisions. It compares two common surgical approaches and examines the impact of lumbar spine DJD on spinopelvic characteristics.
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