Retrospective study to evaluate the ten-year survival rate following medial open-wedge high tibial osteotomy (HTO)

Retrospective study to evaluate the ten-year survival rate following medial open-wedge high tibial osteotomy (HTO) - HTO-10-year-survival

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00037298

Enrollment

138

Registered

2025-08-01

Start date

2020-06-01

Completion date

Unknown

Last updated

2025-10-06

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

Conditions

M17.3

Interventions

Group 1: Retrospective analysis of all patients who underwent medial open-wedge high tibial osteotomy (HTO) at our institution between 2004 and 2012. This study arm evaluates long-term clinical outcom

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Age = 18 years Symptomatic medial knee osteoarthritis (Kellgren-Lawrence grade I–III) Varus malalignment of the mechanical axis > 3° Medial open-wedge high tibial osteotomy (HTO) performed between 2003 and 2011 Minimum follow-up of 9.5 years Sufficient German language skills to participate in follow-up examinations and questionnaires

Exclusion criteria

Exclusion criteria: Age under 18 years Insufficient German language skills Follow-up period less than 9 years Missing or incomplete follow-up data

Design outcomes

Primary

Measure	Time frame
Ten-year TKA-free survival rate after medial open-wedge high tibial osteotomy (HTO)	—

Secondary

Measure	Time frame
Secondary endpoint: Functional outcome (KOOS), pain reduction (NRS), patient satisfaction, subjective failure rate, sports activity, complication rate, influence of risk factors (e.g. age, sex, cartilage damage)	—

Countries

Germany

Contacts

Public ContactWolf Petersen

Martin Luther Krankenhaus

wolf.petersen@jsd.de+49 30 8955-3025

Outcome results

None listed

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