Which factors influence the clinical and radiological outcome after triple pelvic osteotomy (Tönnis and Kalchschmidt technique) for hip dysplasia?

Which factors influence the clinical and radiological outcome after triple pelvic osteotomy (Tönnis and Kalchschmidt technique) for hip dysplasia? - 3FBO Dortmund

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00024907

Enrollment

150

Registered

2021-04-26

Start date

2021-05-01

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

Q65.8

Interventions

Group 1: All patients undergo surgery (triple pelvic osteotomy). Evaluation is performed according to age, sex, severity of hip dysplasia, preoperative osteoarthritis, concomitant pathologies, concomi

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: indication for a triple pelvic osteotomy using the Tönnis/ Kalchschmidt technique

Exclusion criteria

Exclusion criteria: Age < 18 years, inability to complete a questionnaire independently, patient refusal to participate

Design outcomes

Primary

Measure	Time frame
postoperative change in hip joint range of motion, pain level, and clinical scores (HHS, EQ5D5L, UCLA) according to age, sex, severity of hip dysplasia, preoperative osteoarthritis, concomitant pathologies, concomitant surgery, and pre-existing conditions (subgroup analysis).	—

Secondary

Measure	Time frame
Change in outcome dependent from the preoperative activity level, comparison to previous studies in terms of change in follow-up, current complication rate for triple pelvic osteotomy.	—

Countries

Germany

Contacts

Public ContactSilvia Mrotzek

Klinikum Dortmund, Klinikzentrum Mitte, Orthopädie

silvia.mrotzek@web.de0231/95321864

Outcome results

None listed

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