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Adult Reconstruction
intermediate
X-Type

THA Leg Length Discrepancy - Measurement and Prevention

THA Complications

A 62-year-old woman presents 3 months after uncomplicated primary THA complaining that her operated leg feels longer. Clinical examination confirms a 2cm leg length discrepancy (LLD) with the operated leg longer. She reports low back pain and difficulty walking without a shoe lift. Pre-operative templating documented equal leg lengths. Regarding leg length discrepancy after THA:

Mark each as TRUE or FALSE

A

True leg length is measured from the anterior superior iliac spine (ASIS) to the medial malleolus; a...

B

Pre-operative templating should include assessment of femoral offset, vertical hip center, and antic...

C

Leg lengthening of any magnitude is well-tolerated by all patients; shortening is more symptomatic t...

D

Leg length discrepancy is the most common cause of patient dissatisfaction and litigation following ...

E

Intraoperative techniques to assess leg length include comparison of the knee positions with hips an...

Answer the questions to see explanations

Click T (True) or F (False) for each option