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Role of Interosseous Recurrent Artery Perforators in the Posterior Interosseous Artery Flap

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Journal of Hand and Microsurgery

Abstract

The Posterior Interosseous Artery flap is a fasciocutaneous flap based on the Posterior Interosseous artery which lies invested by the fascial septum between the Extensor carpi ulnaris and Extensor Digiti Minimi where it gives off septocutaneous branches that spread out on the deep fascia to form longitudinal fascial arcades as well as supply the deep extensors. The conventional flap based on these perforators is restricted to the middle-thirds of the dorsum of forearm. Preservation of the perforators from the Interosseous Recurrent Artery by proximal ligation of the Interosseous Recurrent Artery and by protecting the index septum prolongation carrying the perforators of IRA can help us to recruit larger tissue in the flap. A total of 20 clinical cases and 10 cadaveric dissections were done to objectively define this technique.

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Correspondence to Rohini Prasad.

Appendix

Appendix

Site of entry of PIA in the posterior compartment

 

14–15CM

15–16CM

16–17CM

CADAVERIC

nil

3

7

CLINICAL

2

2

16

Number of perforators from the PIA

no. of perf

1

2

3

4

5

CADAVERIC

nil

1

4

5

nil

CLINICAL

nil

nil

3

15

2

Distance of the distal most perforator from the ulnar styloid process

 

7.5–8.5CM

8.5–9.5CM

9.5–10.5CM

10.5–11.5CM

CADAVERIC

2

6

2

nil

CLINICAL

7

9

3

1

Site of anastomosis between PIA and AIA from ulnar styloid process

 

2.0–2.5

2.5–3.0 cm

3.5–4.5CM

CADAVERIC

9

1

nil

CLINICAL

11

7

2

Origin of IRA

site

oblique cord

APL/Sup

cadaveric

7

3

clinical

11

9

Plane of IRA

PLANE OF IRA

b/w anc, sup

fibres of sup/deeper

cadaveric

7

3

clinical

13

7

Number of perforators from IRA

 

1

2

3

CADAVERIC

4

5

1

CLINICAL

7

12

1

Site of flap

 

MIDDLE 1/3

mid-prox (min ext)

ext to prox1/4

NO.OF FLAP

3

10

7

Flap length (vertical)

length

5–7CM

7–9CM

9–11CM

11–14CM

NO.OF FLAPS

4

9

1

6

Flap breadth (horizontal)

Breadth

3–4 cm

4–5 cm

5–6 cm

6–7 cm

7–8 cm

NO.OF FLAPS

6

6

4

3

1

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Prasad, R., Balakrishnan, T.M. Role of Interosseous Recurrent Artery Perforators in the Posterior Interosseous Artery Flap. J Hand Microsurg 7, 36–41 (2015). https://doi.org/10.1007/s12593-014-0161-3

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  • DOI: https://doi.org/10.1007/s12593-014-0161-3

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