Obsidian Pediatric Running Blade Posterior Mount

Suggested L-Codes

L5980 or L5999

Suggested L-Codes are provided as a reference only. It is the responsibility of the practitioner and/or patient care facility submitting this claim to determine and submit the correct coding within all established rules and guidelines.

  • Split-blade design

  • Improves cornering performance and trail running

  • Dynamic, carbon composite design

  • Durable tire-grade tread

Featured Specifications

Functional Level

K3, K4


Posterior Mount

Patient Weight Maximum

180 lbs. (82 kg)


19.4 oz. (550 g)

Build Height

2 in. (51 mm)

Ordering Information

Includes foot and instruction manual


  • 12 months from date of patient fitting

The Obsidian foot system has been designed and manufactured for specific patient weights. Failure to follow the weight guidelines and/or overload conditions caused by the patient, such as heavy lifting, high impact sports, or abusive activities that would otherwise damage the natural limb, may void the warranty.

Additional Specifications

Patient Weight Minimum: 50 lbs. (23 kg)

Mount Height Range: 10.5 - 18.5 in. (267 - 470 mm)


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Obsidian Replacement Tread

The Obsidian running blades feature a tire-grade tread that can grip surfaces from the track to the trail.
Obsidian Running Blade Replacement Tread 100-40-4000

Adjustable Alignment Bracket

The Adjustable Alignment Bracket is designed to assist in the fitting and alignment of posteriorly mounted feet. The bracket is for in-clinic fitting only — it is not a permanent mounting solution, but rather a fitting tool. The bracket is compatible with the Formula and AllPro Posterior Mount feet.
Compatible Foot Maximum Patient Weight SKU
Adjustable Alignment Bracket Pediatric Formula, Pediatric Obsidian Running 132 lbs. (60 kg) 180-10-5000

Posterior Mounting Bracket

The Posterior Mounting Bracket is designed for use with posteriorly mounted feet to ease the fabrication process for adjustments and socket replacements. Once correct alignment has been determined using the Adjustable Alignment tool, the foot can be mounted using the Posterior Mounting Bracket. Specifications refer to adult brackets
Maximum Patient Weight SKU
Posterior Mounting Bracket 125 lbs. (57 kg) 180-10-3000

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