# K170341: Medussa-PL Cage

- Pathway: 510(k) (Traditional)
- Applicant: Medyssey USA, Inc.
- Decided: Nov 2, 2017 after 272 days
- Product code: MAX (Intervertebral Fusion Device With Bone Graft, Lumbar)
- Device class: 2
- Regulation: 21 CFR 888.3080
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 5 generations back to K010530 (2001). 13 ancestors in all.
4 later devices descend from it; 3 cite it directly.
0 of 18 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K110067: LP Cage, Medyssey Co, Ltd. (2011) Summary page 4.
- K112316: 4-Web Alif Spinal Truss System (STS), 4-Web, Inc. (2011) Summary page 4.

## Most influential descendants
- K180990: TirboLOX-L Lumbar IBFD (2018), 1 descendant of its own
- K223654: Medussa-PL Cage (2022), 0 descendants of its own
- K200283: Medussa-PL Cage (2020), 0 descendants of its own
- K181229: TirboLOX-C Cervical IBFD (2018), 0 descendants of its own

## Indications for use
The Medussa-PL Cage is indicated for use in skeletally mature patients with Degenerative Disc Disease (DDD) at one or two contiguous levels from L2-S1. DDD is defined as discogenic back pain with degeneration of the disc confirmed by patient history and radiographic studies. Patients should have received 6 months of non-operative treatment prior to treatment with the devices. The device must be used with supplemental fixation. These DDD patients may also have up to Grade 1 spondylolisthesis or retrolisthesis at the involved level(s). It is indicated to be used with autograft bone.

Source page: https://510kreport.com/device/K170341
Methodology: https://510kreport.com/methodology