# K042337: Zimmer M/L Taper Hip Prosthesis with Calcicoat Ceramic Coating

- Pathway: 510(k) (Special)
- Applicant: Zimmer, Inc.
- Decided: Nov 4, 2004 after 66 days
- Product code: LPH (Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Porous Uncemented)
- Device class: 2
- Regulation: 21 CFR 888.3358
- 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 K850055 (1985). 15 ancestors in all.
11 later devices descend from it; 4 cite it directly.
1 of 27 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K032726: Zimmer M/L Taper Hip Prosthesis, 7711 Series, Zimmer, Inc. (2003) Summary page 1.

## Most influential descendants
- K063251: Zimmer M/L Taper Hip Prosthesis with Modular Neck Technology (2007), 5 descendants of its own
- K081007: Zimmer M/L Taper Hip Prosthesis with Kinectiv Technology System (2008), 3 descendants of its own
- K071856: Zimmer M/L Taper Hip Prosthesis with Kinectiv Technology System, Model (S) 7848 Series ( Modular Necks), 7713 Series (2007), 3 descendants of its own
- K060040: Zimmer M/L Taper Hip Prosthesis (2006), 3 descendants of its own
- K192660: Zimmer M/L Taper Hip Prosthesis (2020), 2 descendants of its own

## Indications for use
Total hip replacement for the following: severe hip pain and disability due to rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis, collagen disorders, avascular necrosis of the femoral head, nonunion of previous fractures of the femur; congenital hip dysplasia, protrusio acetabuli, slipped capital femoral epiphysis; disability due to previous fusion; previously failed endoprostheses, and/or total hip components in the affected extremity and acute femoral neck fractures. Hemi-hip replacement for the following: fracture dislocation of the hip; elderly, debilitated patients when a total hip replacement is contraindicated; irreducible fractures in which adequate fixation cannot be obtained; certain high subcapital fractures and comminuted femoral neck fractures in the aged; nonunion of femoral neck fractures; secondary avascular necrosis of the femoral head; pathological fractures of the femoral neck; and osteoarthritis in which the femoral head is primarily affected.

Source page: https://510kreport.com/device/K042337
Methodology: https://510kreport.com/methodology