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Hydraulic Hip Joint

Item #: 7E9
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Suggested HCPCS Coding: Private Payer: L5331/L5341 (Base) + L5999
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The 7E9 is a slim, robust hydraulic hip joint that works with a variety of prosthetic knee and foot options. It also has the highest weight limit in its class—275 lbs (125 kg).

7E9 Monocentric Hydraulic prosthetic hip joint is designed for those with hip disarticulation or hemipelvectomy level amputations.

The 7E9 monocentric hydraulic hip joint provides high functionality, safety, and improved mobility for hip disarticulation and hemipelvectomy amputees.

  • Slim, robust design works with a variety of knee and foot options
  • Approved for a maximum body weight of 275 lbs (125 kg), so you can fit a broad range of patients
  • The only hydraulic swing and stance hip approved for use with the 3R60 and 3R106 mechanical knees (can also be used with C-Leg and Genium)
  • Dampened, controlled heel strike; significant reduction of pelvic tilt; smooth, controlled roll-over under full load; support of knee joint stance flexion; and targeted control of the pendulum movements in swing provide a closer approximation to physiological gait.
  • 130° flexion angle and low structural height minimize pelvic obliquity, making sitting more comfortable
  • Easy to align and adjust
  • Recommended for MOBIS mobility grades 2 and 3 (restricted and unrestricted outdoor walkers)

Scope of delivery includes:
1 - 4G576 Support plate
1 - 7Z53=1-M10 Lamination plate (up to 275 lbs/125 kg)
2 - 501S72=M10x25 Oval Head Screw (up to 275 lbs/125 kg)
2 - 501S72=M10x30 Flat Head Screw (up to 275 lbs/125 kg)
2 - 501F9=M8x25 Flat Head Screw (up to 220 lbs/100 kg)
2 - 501F9=M8x30 Flat Head Screw (up to 220 lbs/100 kg)
1 - 710H10=2x3 Hexagon Screwdriver
1 - 7Z63 Lamination Aid
1 - 709Z11 T40 Bit
1 - 7Z53 Lamination Plate (up to 220 lbs/100 kg)
1 - 4G420=S Bottom Plate (up to 220 lbs/100 kg)
1 - 4G438=G Intermediate Piece (up to 220 lbs/100 kg)
1 - 4G420-1=GS Bottom Plate (up to 275 lbs/125 kg)
1 - 4G438-1=G Intermediate Piece (up to 275 lbs/125 kg)
1 - 2Z11=KIT Pyramid Dome Protector Kit

Sold separately:
2R30 30 mm Thigh pylon (up to 220 lbs/100 kg)
2R36 34 mm Thigh pylon (up to 330 lbs/150 kg)
743A29 Reference Determination Tool (recommended for alignment)


User weight capacity 275 lbs
Material Aluminum
Proximal connection Lamination Plate
Distal connection Pyramid Adapter
System height 81 mm
Weight 695 g
Design Monocentric
Max. body weight 275 lbs (125 kg)
Flexion angle 130 degrees
Build Height 100 mm


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7E9 Private Payer Coding & Billing


PDF Document | Published: Jan 8, 2024

7E9 Private Payer Coding Options

Reimbursement: Toolkit


PDF Document | Published: May 6, 2024

Prosthetic Hip Clinical Studies

Reimbursement: Clinical Studies


PDF Document

LLP Prosthetist Documentation

Reimbursement: Documentation Guide


PDF Document | Published: Apr 17, 2023

LLP Physician Documentation Guide


PDF Document | Published: Apr 17, 2023

7E9 Hip - Quick Reference Guide

Product Information

PDF Document | Published: Apr 1, 2016

7E9 Hip Joint - Instructions for Use

Instructions for Use

PDF Document | Published: Mar 2, 2022