Application and exploration of total hip arthroplasty for developmental dysplasia of the hip assisted by full-process robotics

BMC Musculoskelet Disord. 2025 Mar 6;26(1):225. doi: 10.1186/s12891-025-08460-y.

Abstract

Objective: This study aimed to explore whether total hip arthroplasty (THA) aided by full-process robotics was effective in patients undergoing developmental dysplasia of the hip (DDH).

Methods: Totally 112 patients were enrolled and classified into robotic-assisted group (n = 56) and the conventional group (n = 56). In addition, retrospective analysis was used for comparing the difference in therapeutic efficacy.

Results: A total of 112 patients received THA, and were followed up for (12.78 ± 0.76) months on average, with no occurrence of associated complications. For patients in robot-assisted group, their abduction and anteversion angles of acetabular cup placement were in the safe zone, while those in 8 patients of the conventional group were outside the safe zone. Compared to the conventional group, the robot-assisted group had higher postoperative Harris Hip Score and FJS, whereas lower VAS score.

Conclusion: Robot-assisted THA is advantageous in terms of both intraoperative precision and postoperative effect on the treatment of patients with DDH.

Keywords: Conventional THA; Full-process robotics; Robot-assisted THA; Safe zone.

MeSH terms

  • Adult
  • Aged
  • Arthroplasty, Replacement, Hip* / adverse effects
  • Arthroplasty, Replacement, Hip* / instrumentation
  • Arthroplasty, Replacement, Hip* / methods
  • Developmental Dysplasia of the Hip* / diagnostic imaging
  • Developmental Dysplasia of the Hip* / surgery
  • Female
  • Follow-Up Studies
  • Hip Dislocation, Congenital* / surgery
  • Humans
  • Male
  • Middle Aged
  • Retrospective Studies
  • Robotic Surgical Procedures* / adverse effects
  • Robotic Surgical Procedures* / methods
  • Treatment Outcome