Ligaments preservation in total knee arthroplasty

Higher rates of fully preserved posterior cruciate ligament in total knee arthroplasty using a double tibial cut: a prospective randomized controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN30252604

Enrollment

Registered

2023-04-13

Start date

2017-06-01

Completion date

Unknown

Last updated

2023-04-24

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

Conditions

Knee osteoarthritis Musculoskeletal Diseases

Interventions

Patients undergoing cruciate retaining (CR) total knee arthroplasty (TKA) were recruited. A statistical calculator (EpiCalc2000 for Microsoft Windows, version 1.02) was used for the randomization proc

in 25 (group 2) and 25 (group 3) patients, the bone island and en bloc resection techniques were performed, respectively. PCL integrity and femoral rollback were assessed at the end of surgery. The Ox

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients scheduled for primary TKA between June 2017 and June 2019 2. Primary or secondary knee osteoarthritis in which a cruciate retaining total knee arthroplasty was indicated

Exclusion criteria

Exclusion criteria: 1. Previous knee surgeries for degenerative or traumatic conditions 2. Varus-valgus deformity greater than 15° 3. Bone defects or severe flexion contractures requiring a posterior stabilized (PS) implant 4. Patients unwilling to attend clinical follow-ups on a regular basis

Design outcomes

Primary

Measure	Time frame
1. The degree of femoral rollback (or posterior translation of femoral condyles on tibial plateaus during the flexion of the knee) on sagittal view of the knee. To avoid any influence of different radiographic magnifications, the femoral rollback was expressed as a percentage (of posterior femoral translation in millimeters with respect of the length in millimeters of the tibial plateau). Measured on radiographic images taken in the operative room at the end of surgery. 2. The knee range of motion measured with a digitalized goniometer in degrees (of knee flexion) at the 2-years follow-up	—

Measure

Time frame

1. The degree of femoral rollback (or posterior translation of femoral condyles on tibial plateaus during the flexion of the knee) on sagittal view of the knee. To avoid any influence of different radiographic magnifications, the femoral rollback was expressed as a percentage (of posterior femoral translation in millimeters with respect of the length in millimeters of the tibial plateau). Measured on radiographic images taken in the operative room at the end of surgery. 2. The knee range of motion measured with a digitalized goniometer in degrees (of knee flexion) at the 2-years follow-up

—

Secondary

Measure	Time frame
Assessed before surgery and 3, 6, 12 and 24 months postoperatively: 1. Degree of disability measured using the Oxford Knee Score 2. Pain, stiffness and function measured using the Western Ontario and McMaster University (WOMAC) scale	—

Countries

Italy

Outcome results

None listed

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