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Permissive Weight Bearing in Displaced Intra-Articular Calcaneal Fractures

Permissive Weight Bearing in Displaced Intra-Articular Calcaneal Fractures - The PIONEER Study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
NL-OMON
Registry ID
NL-OMON56739
Enrollment
115
Registered
2023-03-16
Start date
2024-06-07
Completion date
Unknown
Last updated
2026-07-13

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

Conditions

calcaneal fractures heel bone fractures heel bone fracture

Interventions

The PWB protocol allows earlier post-operative permissive weight bearing, where progression of weight bearing is guided by the subjective experience (for example: pain, weight bearing tolerance) of

Sponsors

Maastricht Universitair Medisch Centrum +
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: • Surgically treated trauma patients with isolated unilateral DIACFs, less than 6 weeks after trauma, Sanders type II-IV • Isolated unilateral calcaneal fractures • Age between 18 and 67 years old (labor force) • Being able to understand the questionnaires and measurement instructions • Indication for open/closed reduction and internal fixation • Written Informed Consent

Exclusion criteria

Exclusion criteria: • Acute or existing amputation (upper limb, lower limb, feet) • Open calcaneal fractures (excluding medial wound without compromising surgical approach) • Bilateral fractures of the lower extremities • Unable to comply to the PWB protocol due to pre-existing conditions of the arms and legs (e.g. unable to use crotches due to hemiparalysis) • Severe non-fracture related comorbidity of the lower extremity • Pre-existent immobility (loss of muscle function of one or both legs) • Dependent in activities of daily living (e.g. due to dementia, Alzheimer, New York Heart Association class IV angina and heart failure, oxygen-dependent chronic obstructive pulmonary disease) • Rheumatoid arthritis of the lower extremities • Severe psychiatric comorbidities that lead to inability to comply with the treatment protocol • Pathologic fractures (metastasis, secondary osteoporosis) • Peripheral neuropathy and/or diabetes • Alcohol- or drug abuse preventing adequate follow-up • Primary indication for arthrodesis subtalar joint • Two or more fractures of the upper and/or lower extremities

Design outcomes

Primary

MeasureTime frame
Primary objective is: - Is functional outcome in PWB in surgically treated patients with DIACFs non-inferior to RWB after 6 months, as defined by the American Orthopaedic Foot & Ankle Society (AOFAS) Score? Hypothesis 1: functional outcome, as defined by the AOFAS Score, for surgically treated patients with DIACFs following the PWB protocol is non-inferior compared to patients who followed the RWB protocol after 6 months.

Secondary

MeasureTime frame
- Are there differences in self-reported function in surgically treated patients with DIACFs following the PWB protocol compared to patients following the RWB protocol after 6 months? - Are there differences in Health-Related Quality of Life (HRQoL) assessed by EuroQol-5D-5L in surgically treated patients with DIACFs following the PWB protocol compared to patients following the RWB protocol after 6 months? - Is there a difference between the pre-operative and early post-operative Böhlers angle between surgically treated patients with DIACFs following the PWB or RWB protocol? Is there a difference between the early post-operative Böhlers angle and the Böhlers angle at 6 months post-operatively between surgically treated patients with DIACFs following the PWB or RWB protocol? Is there a difference in the the posterior facet joint alignment (step-off and gap) when compared at 6 months between surgically treated patients with DIACFs following the PWB or RWB protocol? - Is the PWB protocol cost-effective in surgically treated patients with DIACFs compared to RWB? - Is there a difference in the occurrence of complications after 6 months between surgically treated patients with DIACFs following the PWB or RWB protocol? Hypothesis 2: patients with DIACFs following the PWB protocol will have better self-reported function as defined by the Maryland Foot Score (MFS) than patients who followed the RWB protocol after 6 months. Hypothesis 3: patients with DIACFs following the PWB will have an improved HRQoL defined by the EuroQoL 5-Dimension 5-Level (EQ-5D) than patients who followed the RWB protocol after 6 months. Hypothesis 4: patients with DIACFs following the PWB will have no radiographically differences in comparison to patients following the RWB protocol when the intra-articular step-off (in mm) and gap (in mm) of the posterior facet and the Böhlers angle (in degrees) is compared between 6 months and directly post-operatively. Hypothesis 5: he

Countries

Netherlands

Contacts

Public ContactC Verstappen

Maastricht Universitair Medisch Centrum +

secretariaat.traumachirurgie@mumc.nl043 387 6543

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP) · Data processed: Jul 23, 2026