Change in capsule tension as a predictor of anterior knee pain after TKA

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00038524

Enrollment

Registered

2025-11-25

Start date

2025-12-15

Completion date

Unknown

Last updated

2026-01-12

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

Conditions

Z96.65 M17.1

Interventions

Group 1: One day before surgery Patients with an indication for primary total knee arthroplasty undergo ultrasound shear wave elastography of the anteromedial knee joint capsule, measuring capsule sti

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Indication for primary total knee arthroplasty; Written informed consent

Exclusion criteria

Exclusion criteria: Age 40; Pregnancy; Revision surgery of the knee; Severe scarring of the knee joint interfering with ultrasound elastography; Lack of capacity to consent

Design outcomes

Primary

Measure	Time frame
T0 (pre-operative): Knee joint capsule stiffness in 4 defined joint positions (0°, 30°, 60°, 90°) using ultrasound shear-wave-elastography; Pain (VAS) and localisation at the knee T1 (approx. 6 months post-operative): Knee joint capsule tension in 4 defined joint positions using ultrasound shear-wave-elastography; Pain (VAS) and localisation at the knee	—

Secondary

Measure	Time frame
T0 (pre-operative): Hip-Knee-Ankle Angle, LDFA, MPTA; PROMs (WOMAC, KOOS) T1 (aprox. 6 months post-operative): Hip-Knee-Ankle Angle, LDFA, MPTA; PROMs (WOMAC, KOOS)	—

Countries

Germany

Contacts

Public ContactLeandra Bauer

Waldkliniken Eisenberg

l.bauer@waldkliniken-eisenberg.de+493669181082

Outcome results

None listed

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