# K971993: Odi Compression Hip Screw System

- Pathway: 510(k) (Traditional)
- Applicant: Orthopaedic Designs, Inc.
- Decided: Nov 12, 1997 after 167 days
- Product code: KTT (Appliance, Fixation, Nail/Blade/Plate Combination, Multiple Component)
- Device class: 2
- Regulation: 21 CFR 888.3030
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 2 generations back to K850886 (1985). 11 ancestors in all.
No later device cites it as a predicate yet.
0 of 12 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K781762: Compression Hip Screw System, Howmedica Corp. (1978) Summary page 3.
- K823548: Compression Hip Screw Side-Plate, Howmedica Corp. (1982) Summary page 3.
- K900584: Alta Lag Screw and Compression Screw, Howmedica Corp. (1990) Summary page 3.
- K850886: Compression Hip Screw System, Pfizer, Inc. (1985) Summary page 3.
- K872223: Modified Omega Compression Hip Screw System, Howmedica Corp. (1987) Summary page 3.
- K955306: Omega+ Compression Screw System, Howmedica Corp. (1996) Summary page 3.
- K922295: Omega Plus Compress Hip Screw System, Modification, Howmedica Corp. (1992) Summary page 3.
- K791619: Dynamic Hip Screw, Synthes (Usa) (1979) Summary page 3.
- K861178: Depuy Compression Hip Screw System, Depuy, Inc. (1986) Summary page 4.
- K946156: Depuy Compression Hip Screw System, Depuy, Inc. (1995) Summary page 4.
- (no number) Ace Cannulated Hip Screw and Captured Hip Screw System: named in the summary without a submission number
- (no number) Richards Key-Lock System: named in the summary without a submission number
- (no number) Richards Kwik-Key: named in the summary without a submission number
- (no number) Richards Ambi Compression Hip Screw: named in the summary without a submission number
- (no number) Richards Classic: named in the summary without a submission number
- (no number) Zimmer Compression Hip Screw with ECT: named in the summary without a submission number
- (no number) Zimmer Free-Lock: named in the summary without a submission number
- (no number) Zimmer Versa-Fx: named in the summary without a submission number
- (no number) Orthopedic Equipment Company’s (OECO) Compression Hip Screw Plate: named in the summary without a submission number
- (no number) Wright Hip Compression Screw/Plate: named in the summary without a submission number
- (no number) Wright Concise Compression Hip Screw System: named in the summary without a submission number
- (no number) Wright Cannulated Plus Screw System: named in the summary without a submission number

## Indications for use
The ODi Compression Hip Screw System will be used on indications that are common with presently marketed compression hip screw systems. The primary indications are for fixation/stabilization of intertrochanteric fractures, some high subtrochanteric fractures and intracapsular fractures, provided that weight bearing is not allowed until the fracture shows evidence of union. The device is intended to stabilize fragments of the fracture until bony union can occur.

Source page: https://510kreport.com/device/K971993
Methodology: https://510kreport.com/methodology