A comparison of xenogeneic and autogenous bone implants used in the lateral Calcaneus Lengthening osteotomy according to Evans

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00015478

Enrollment

Registered

2022-11-04

Start date

2018-12-01

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

M21.4

Interventions

Group 1: Retrospective Study: Group of patients with xenogeneic grafts, group of patients with autologous grafts: Comparison Incorporation, Correction Retention

Eligibility

Sex/Gender

All

Age

18 Years to 75 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria were the diagnosis of a radiologically evident pes planovalgus with clinical symptoms (such as pain or general foot fatigue), failed conservative therapy, patient age of 18 to 75, surgery using the modified Evans' calcaneus lengthening osteotomy with xenogeneic or autologous bone grafts, and a documented postoperative course of therapy with radiographic imaging.

Exclusion criteria

Exclusion criteria: Exclusion criteria were age below 18 or over 75, documented lower limb circulatory compromise (such as PAD), revision of previous surgery and other type of material used for the lengthening of the lateral column (such as allogeneic grafts).

Design outcomes

Primary

Measure	Time frame
Incorporation and correction maintenance at 6 months postoperatively	—

Secondary

Measure	Time frame
Factors with influence on the consolidation rate	—

Countries

Germany

Contacts

Public ContactMarkus Siegel

Universitätsklinik Freiburg

markus.siegel@uniklinik-freiburg.de0761 270 24010

Outcome results

None listed

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