Dynamic orthosis for pipj extension deficit

Short functional dynamic orthosis for proximal interphalangeal joint extension deficit. Crest design Cantero-Téllez, R. Level of Evidence: 5 Follow recommendation: 👍 Type of study: Therapeutic Topic: Proximal interphalangeal joint (pipj) extension lag treatment - Dynamic orthosis. This practice forum presented step by step instructions on how to create a dynamic splint for pipj extensor lag. It is advised to wear the splint 6 hours daily in combination to a static night splint for 6/52. The orthosis is reported to be a useful alternative in settings where off the shelf products are not available. A piece of 1.6 to 2mm thermoplastic, orficast, and elastic bands are required. A small cylinder for the proximal phalanx is created and connected to the distal cylinder which includes the proximal and distal phalanx. The pipj is therefore left free to move. The two cylinders are connected on radial and ulnar side by two orficast stripes to warrant stability of the splint. Two hooks are positioned on the dorsal proximal cylinder and at the dorsal distal cylinder at dipj level. An elastic band is attached to the two hooks to assist with pipj extension and allow pipj flexion. Clinical Take Home Message: Hand therapists should make sure that the extension lag at the pipj is not due to a central slip before deciding to apply this splint. If no central splip is suspected, the clinician may consider this new design as an alternative to existing splints. If available, however, an off the shelf LMB finger extension splint would probably achieve the same result. In a low resource setting, a relative motion flexion splint may be a suitable alternative to this new design. URL: https://www.jhandtherapy.org/article/S0894-1130(18)30148-0/fulltext

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