NCT06811532

Assessing Perfusion of Osteotomized Scapula and Lat Flap

Assessing Perfusion of an Osteotomised Scapula and Latissimus Dorsi Chimeric Free Flap on the Thoracodorsal Artery

• Status: Not Yet Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 30 (estimated)
• Sponsor: Western University, Canada · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The gold standard for reconstruction of the jaw is the utilization of a bone free tissue transfer. Scapula reconstruction is an excellent option for elderly patients, those with significant comorbidities and for complex defects with large soft tissue reconstructive requirements. The scapula is supplied by the angular artery and circumflex scapula arteries. No studies have shown with objective measures, the viability of the lateral border of the scapula bone supplied by either the angular artery or circumflex scapula arteries. The aim of this observational study is to demonstrate with objective clinical measures, via SPY-Q software analysis, that the angular artery can adequately supply the scapula tip flap including with a single osteotomy giving two bone segments, in 30 patients who will undergo reconstructive head and neck surgery at LHSC.

Detailed description

The aim of this follow-up observational study is to demonstrate with objective clinical measures via SPY-Q software analysis, that the angular artery can adequately supply the scapula tip flap including a single distal osteotomy segment. 30 patients undergoing mandible or maxillary reconstruction with the scapular tip flap will be included. An osteotomy will be performed at up to 8cm from the scapular tip. The adequacy of blood supply to the scapula tip flap after a distal osteotomy and the latissimus dorsi muscle component of the flap will be measured intraoperatively, using SPY-Q software analysis.

Conditions

• Head and Neck Cancer

Interventions

Type	Name	Description
OTHER	Blood perfusion analysis using SPY-Q software	Use of the SPY-Q analysis software during surgery to calculate bone profusion scores on several areas of the scapular tip flap (endosteum of scapula bone segments and latissimus dorsi muscle component).

Timeline

• Start date: 2025-05-07
• Primary completion: 2027-02-28
• Completion: 2027-03-30
• First posted: 2025-02-06
• Last updated: 2025-04-09