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The concept and preliminary practice of precise flap surgery based on CTA / 中华骨科杂志
Chinese Journal of Orthopaedics ; (12): 365-373, 2022.
Article in Chinese | WPRIM | ID: wpr-932844
ABSTRACT

Objective:

To introduce the concept and procedure of CTA guided precision flap surgery and report the preliminary clinical application.

Methods:

The theory of CTA guided precision flap surgery is based on CTA high-throughput data, comprehensively evaluate the wound and potential donor sites, and select the best plan for wound repair. This article reviews 177 patients treated under the guidance of CTA guided precision flap surgery from August 2014 to December 2018. Among them, 131 were males and 46 were females; they were 7-72 years old, with an average age of 39.5 years. The tissue defects were 74 cases of foot and ankle, 64 cases of wrist, 15 cases of calf, 11 cases of forearm and upper arm, 7 cases of thigh and perineum, 5 cases of face and neck, and 1 case of abdomen. The size of the defect was 2 cm×1 cm to 65 cm×50 cm. The recipient and donor sites were assessed based on CTA guided precision flap surgery, then choose the optimal flap to repair the defect. The flap types, outcomes and complications were recorded. The visual analogue scale (VAS), British Medical Research Council sensory rating scale, and revascularization assessments of digital replantation standard by Hand Surgery Branch of Chinese Medical Association was used to assess clinical results.

Results:

All flaps were uneventfully harvested as planned according to the CTA guided precision flap surgery concept.A total number of 181 flaps were harvested, including 125 free flaps and 56 pedicled flaps. The flap area rangedfrom 4 cm×3 cm to 40 cm×8 cm. After surgery, 165 cases were survival completely, 7 cases were total necrosis, 9 cases were partial necrosis. A total of 174 cases of flaps survived. The mean follow-up was 9.2 months (range, 6-60 months). After surgery 53 flaps were bulky, and 7 cases with other complications.At the last follow-up, only 6 patients had mild pain, the VAS score was 1-3. The sensation of the flaps recovered partially. According to the British Medical Research Council sensory rating scale 68 cases were grade S2 and 106 cases were grade S3. According to the revascularization assessments of digital replantation standard by Hand Surgery Branch of Chinese Medical Association, 171 cases were excellent and 3 cases were good.

Conclusion:

The concept of precision flap surgery based on CTA can effectively guide flap surgery and achieve precise wound repair.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Practice guideline Language: Chinese Journal: Chinese Journal of Orthopaedics Year: 2022 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Practice guideline Language: Chinese Journal: Chinese Journal of Orthopaedics Year: 2022 Type: Article