• Dr. Domb!

    Thanks a lot for getting my hip right. Looking forward to a full recovery and a great season. Thanks again for everything.

    Corey WoottonChicago Bears and Detroit Lions
  • Thank you for all that you have done for me and the team. My hip feels so much better, and because of you I'm pain free.
    Sylvia Fowles WNBA Finals MVP, 2-time Olympic Gold Medalist
  • Thank you for working your magic! You're the best!
    Zakiya BywatersChicago Red Stars, National Women's Soccer League
  • Thanks for all the love and positive Energy that was put into my surgery. May the Lord bless you and your family.
    Atari BigbyGreen Bay Packers and San Diego Chargers
  • Dr. Domb, Thanks for fixing me up
    Rashied DavisChicago Bears
  • Huge thank you to Dr. Domb for always taking care of me and getting me back on the court in no time!
    Elena Delle DonneChicago Sky, MVP of the WNBA
  • Dr. Domb! Thanks for taking care of the hip! All the best to you and your staff
    Roosevelt ColvinChicago Bears' All-Decade Defense team
  • Thanks doc for fixing my hip!
    Ryan ChiaveriniWindy City Live Co-Host on ABC7

2015 - Domb et al. Predictive Value of Robotic-Assisted Total Hip Arthroplasty. Orthopedics

Youssef F. El Bitar, MD; Timothy J. Jackson, MD; Dror Lindner, MD; Itamar B. Botser, MD; Christine E. Stake, MA; Benjamin G. Domb, MD

Abstract

Acetabular cup positioning, leg-length discrepancy, and global offset are important parameters associated with outcomes following total hip arthroplasty (THA). Deviation from an accepted range of values can lead to significant complications, including dislocation, leg-length discrepancy, impingement, accelerated bearing surface wear, and revisions. The purpose of this study was to assess whether robotic-assisted THA was reliable in predicting radiographic measurements of cup inclination and anteversion, leg-length change, and global offset change. All 61 robotic-assisted THAs that met the inclusion and exclusion criteria were performed by a single surgeon through a miniposterior approach. Data provided by the robot were collected prospectively, and radiographic data were collected retrospectively by 2 blinded independent reviewers. The cohort in this study consisted of 27 male and 34 female patients, with an average age of 60.5 years. A strong inter- and intraobserver correlation was found for the radiographic measurements of cup inclination, cup anteversion, leg-length discrepancy, and global offset (r>0.8 with P<.001 for all). Ninety-six point seven percent of roboticmeasured inclination angles and 98.4% of robotic-measured anteversion angles were within 10° of radiographic measurements. One hundred percent of robotic-measured leg-length change and 91.8% of robotic-measured global offset change were within 10 mm of radiographic measurements. Robotic-assisted THA showed good predictive value for cup inclination and anteversion angles and measurements of leg-length change and global offset change done postoperatively on plain radiographs. Further refinement of the robotic system would make it more accurate in predicting the postoperative parameters mentioned. [Orthopedics. 2015; 38(1):e31-e37.]

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