Navigation is Equal to Estimation by Eye and Palpation in Preventing Psoas Impingement in THA.

ABSTRACT:

Background

Iliopsoas tendon impingement is one possible reason for persistent groin pain and diminished functional outcome after THA. So far, estimation by eye and palpation is the standard procedure to intraoperatively assess the distance of the cup to the anterior rim. However, novel technologies such as imageless navigation enable intraoperative measurements of the cup in relation to the psoas tendon and bony landmarks.

Questions/purposes

We asked whether psoas impingement (1) can be reduced using imageless navigation compared with the standard technique and (2) is associated with specific patient characteristics. Furthermore, we investigated (3) if anterior cup protrusion (overhang) is associated with lower outcome scores for pain and function.

Methods

The current

SUBMITTER: Weber M 

PROVIDER: S-EPMC5174048 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature