
10/17/2023
This is a 30 YO M who presented about 2 months out from “jamming” his finger. His PIP joint of the small finger had only about 10 degrees of active flexion. Lateral view shows an impacted volar middle phalanx fracture with PIP subluxation dorsally. You can see the classic “V-sign” dorsally on the lateral X-ray. We explored him and found a fibrous impacted joint that we really couldn’t improve much after 2 months of healing. We performed a hemi-hamate autograft. Some key technical points that are seen in the pictures 1) Save all the tendon sheath from A2 to A4 and save it as flap for later coverage over the bone. 2) a penrose around the tendons is key to easily retract when doing cuts and placing the graft. Otherwise they will always get in your way and increase your operative time 3) Resect the damaged section with a micro saggital saw and created “box defect”. When doing this try to create a slight slant in the coronal cut to leave more more proximally that distally on the middle phalanx. 4) There is a lot of debate on which direction to harvest the hemihamate from. I like to put osteotomes from distal to proximal for the final deep cut rather than created a trough in the proximal hamate to get the osteotome low enough. The 4th and 5th metacarpals can be shifted very easily volarly. 5) Carpentry is everything for the piece. A little prominence volarly on the graft is okay since the FDS doesn’t really glide in this area anyways. Just get the joint perfect with recreation of a volar lip by angling the graft slightly proximally as you get the most volar. 6) Meticulous soft tissue closure with repair of volar plate to the collaterals and use of the tendon sheath flap under the tendons.