Orthonotes
Orthonotes
by the.bonestories
v3.0 Fusion
v3.0 Fusion
arthroplasty topic hub

Total Hip Arthroplasty (THA) — Approaches & Complications

Surgical approaches: posterior, anterolateral, direct anterior, transtrochanteric. Posterior: excellent exposure, preserves abductors, higher dislocation risk. Anterolateral: stable, lower dislocation, abductor weakness risk. Direct anterior: internervous, muscle-sparing, early rehab, risk of LFCN injury, intra-op fracture. Transtrochanteric: trochanteric osteotomy, good exposure, risk of nonunion. Complications: dislocation, infection, aseptic loosening, periprosthetic fractures, nerve injury, heterotopic ossification.

Overview

Topic summary

View wiki
Surgical approaches: posterior, anterolateral, direct anterior, transtrochanteric. Posterior: excellent exposure, preserves abductors, higher dislocation risk. Anterolateral: stable, lower dislocation, abductor weakness risk. Direct anterior: internervous, muscle-sparing, early rehab, risk of LFCN injury, intra-op fracture. Transtrochanteric: trochanteric osteotomy, good exposure, risk of nonunion. Complications: dislocation, infection, aseptic loosening, periprosthetic fractures, nerve injury, heterotopic ossification.
MCQs

High-yield practice questions

Start topic quiz
Question 1

Which surgical approach for total hip arthroplasty is associated with the highest risk of dislocation?

Question 2

What is a significant risk associated with the direct anterior approach (DAA) in total hip arthroplasty?

Question 3

Which of the following approaches is classified as truly internervous?

Question 4

What is the primary indication for total hip arthroplasty?

Question 5

Which approach may risk injuring the superior gluteal nerve if dissection extends above 5 cm from the greater trochanter?

Question 6

What complication is most feared when using the posterior approach for total hip arthroplasty?

Question 7

Which fixation type is primarily indicated for elderly patients with poor bone quality undergoing total hip arthroplasty?

Question 8

Which of the following complications is associated with a risk of nonunion following total hip arthroplasty?

Question 9

In which approach is the risk of abductor weakness a potential complication?

Question 10

What is the Oxford Hip Score (OHS) primarily used for in total hip arthroplasty?