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ORCAS - Oncologic Resection of Complex Pediatric tumors with Accurate Navigated Surgery

The added clinical value of the implementation of intraoperative navigation techniques during complex pediatric tumor resection, a prospective single-center feasibility study.’ - ORCAS

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON61296
Enrollment
62
Registered
2025-11-26
Start date
2026-07-15
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Sarcoma Malignant bone and soft tissue tumors

Interventions

In Part I, patients will undergo an additional ultrasound acquisition to image the bones in the operation room, just before the surgeon starts with the procedure. Together with the preoperative derive
In Part II, all included patients will receive their standard of care treatment plan for sarcoma tumor resection. Additionally to this standard procedure, navigation will be initialized and used durin

Sponsors

Prinses Máxima Centrum voor Kinderoncologie
Lead Sponsor

Eligibility

Age
No minimum to 17 Years

Inclusion criteria

Inclusion criteria: Part I:Age >0-17 years; Patients undergoing surgery at the Princess Maxima Center for Pediatric Oncology; Available 3D model of the bone/bones, based on the most recent PET/CT or CT, that we will use for registration. Tumor visibility is not necessary for this part;Written informed consent.Part II:Age >0-17 years;Patients undergoing surgery at the Princess Maxima Center for Pediatric Oncology; Sarcoma related primary tumors, local tumor recurrences or metastatic lymph nodes located in either the pelvic, abdominal or thoracic wall area;Pre-operative imaging is available to compute 3D models that will be used for registration and navigation. Therefore the following scans should be available;Bone: a most recent PET/CT or CT to be used for patient registration;Tumor: a most recent MRI to compute 3D models of the tumor for intraoperative navigation;Written informed consent.

Exclusion criteria

Exclusion criteria: Preoperative imaging not sufficient for preparing the 3D model as determined by the radiologist / surgeon / technical physician;Indication against inclusion by the surgeon or oncologist; An installed pacemaker, causing interference with the electromagnetic field.Additional exclusion criteria specific for Part II:Local recurrence or metastatic disease in the pleural or lung regions.

Design outcomes

Primary

MeasureTime frame
In Part I, define the surface registration error. In Part II, determine the surgical feasibility of navigated surgery for pediatric pelvic, abdominal, and thoracic sarcoma surgery. The surgical feasibility comprises (i) surgical usability (i.e., a SUS-score of >70 and a proven preference for surgical navigation), (ii) surgical accuracy (=< 4 mm for the TFB-group and =< 5 mm for the FMT-group)

Secondary

MeasureTime frame
In Part I, define the most efficient sensor locations and the time it takes for the sensor placement, image acquisition and patient registration.In Part II, technical performance (i.e., technical failures, time required for the patient registration during surgery =< 10 minutes, and number of required re-registrations).

Countries

Netherlands

Contacts

Public ContactA.F.W. Steeg

Prinses Máxima Centrum voor Kinderoncologie

A.F.W.vandersteeg@prinsesmaximacentrum.nl088 972 72 72

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP) · Data processed: Jul 3, 2026