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A Retrospective Clinical Study Comparing Postoperative Alignment Differences Between Robotic-assisted and Conventional Unicompartmental Knee Arthroplasty Based on the Coronal Plane Alignment of the Knee (CPAK) Classification

A Retrospective Clinical Study Comparing Postoperative Alignment Differences Between Robotic-assisted and Conventional Unicompartmental Knee Arthroplasty Based on the Coronal Plane Alignment of the Knee (CPAK) Classification

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500112647
Enrollment
Unknown
Registered
2025-11-18
Start date
2025-11-24
Completion date
Unknown
Last updated
2025-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoarthritis of the Knee Joint

Interventions

Robotic-assisted UKA group:None
Conventional UKA group:None

Sponsors

The Fourth Medical Center of People’s Liberation Army General Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Patients who underwent unicompartmental knee arthroplasty (UKA) in our department between November 2022 and May 2025. (2) Patients possessed the capacity to provide informed consent, were willing to comply with the study protocol and complete all required follow-ups, and signed the informed consent form.

Exclusion criteria

Exclusion criteria: (1) Patients who underwent lateral unicompartmental knee arthroplasty. (2) Absence of pre-operative or post-operative full-length lower limb radiographs. (3) Patients in the robotic-assisted UKA group where the MAKO robotic system was not utilized. (4) Patients in the conventional UKA group where the Oxford partial knee prosthesis was not used.

Design outcomes

Primary

MeasureTime frame
Lateral distal femoral angle;Medial proximal tibial angle;Mechanical HKA;

Countries

China

Contacts

Public ContactShaokui Nan

The Fourth Medical Center of People’s Liberation Army General Hospital

nanshaokuingh@163.com+86 186 0031 7801

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026