GXP · Class II · 21 CFR 882.5300

FDA Product Code GXP: Methyl Methacrylate For Cranioplasty

FDA product code GXP covers methyl methacrylate bone cement used for cranioplasty — surgical reconstruction of skull defects.

These acrylic materials are used to reconstruct cranial bone defects resulting from trauma, tumor resection, or decompressive craniectomy. The cement is molded intraoperatively or prefabricated as a custom implant to restore the contour and protection of the skull vault.

GXP devices are Class II medical devices, regulated under 21 CFR 882.5300 and reviewed by the FDA Neurology panel.

Leading manufacturers include Orthocon, Inc., Biomet, Inc. and Synthes (Usa).

45
Total
45
Cleared
153d
Avg days
1987
Since
Growing category - 5 submissions in the last 2 years vs 4 in the prior period
Consistent review times: 152d avg (recent)

FDA 510(k) Cleared Methyl Methacrylate For Cranioplasty Devices (Product Code GXP)

45 devices
1–24 of 45
Cleared Jul 30, 2026
TnR Cranial Implant
K251959
T&R BIOFAB CO., Ltd.
Neurology · 399d
Cleared Jun 15, 2026
Permatage XT Settable Bone Putty
K261265
Orthocon, Inc.
Neurology · 60d
Cleared Mar 13, 2026
Permatage Flowable, Settable Bone Paste
K253732
Orthocon, Inc.
Neurology · 109d
Cleared Jan 02, 2026
MONTAGE XT Cranial Cement
K253854
Orthocon, Inc.
Neurology · 30d
Cleared Sep 26, 2024
Permatage Settable Bone Putty
K241027
Orthocon, Inc.
Neurology · 164d
Cleared Feb 16, 2024
Montage Flowable Settable, Resorbable Bone Paste
K232771
Orthocon, Inc.
Neurology · 158d
Cleared Oct 12, 2023
MONTAGE-QS Settable, Resorbable Bone Putty
K231475
Orthocon, Inc.
Neurology · 143d
Cleared Jan 13, 2023
MONTAGE Settable, Resorbable Bone Putty
K221933
Orthocon, Inc.
Neurology · 196d
Cleared Jun 20, 2019
DB-CMF
K182742
Dimensional Bioceramics, LLC
Neurology · 265d
Cleared Jan 13, 2017
OsteoVation Impact
K162864
Skeletal Kinetics, LLC
Neurology · 92d
Cleared Sep 02, 2015
DirectInject
K143661
Stryker
Neurology · 253d
Cleared Sep 23, 2010
NORIAN REINFORCED, NORIAN REINFORCED FAST SET PUTTY
K102018
Synthes USA Products, LLC
Neurology · 66d
Cleared Jul 30, 2007
MODIFICATION TO CRANIOPLASTIC, MODEL 43-1280
K071791
Codman & Shurtleff, Inc.
Neurology · 28d
Cleared Sep 22, 2006
STRYKER INJECTABLE CEMENT
K060763
Stryker
Neurology · 185d
Cleared Apr 13, 2006
NORIAN CRS FAST SET PUTTY
K060443
Synthes (Usa)
Neurology · 51d
Cleared Apr 13, 2006
NORIAN CRS BONE CEMENT
K060445
Synthes (Usa)
Neurology · 51d
Cleared Mar 17, 2006
OSTEOPORE PCL SCAFFOLD
K051093
Osteopore, Inc.
Neurology · 323d
Cleared Feb 09, 2005
BONE SOURCE HAC RAPID SETTING CEMENT
K043334
Stryker Instruments
General & Plastic Surgery · 68d
Cleared Dec 29, 2004
VISIOPLAST ACRYLIC RESIN
K042414
Tecres
Neurology · 113d
Cleared Dec 21, 2004
MIMIX MP BONE VOID FILLER
K043280
Biomet, Inc.
Neurology · 25d
Cleared Sep 16, 2004
CALLOS CMF BONE VOID FILLER
K042072
Skeletal Kinetics, LLC
Neurology · 45d
Cleared Jul 08, 2004
SYNTHES (USA) CHRONOS
K041350
Synthes (Usa)
Neurology · 49d
Cleared May 19, 2004
BONE CEMENT FOR CRANIOPLASTY
K040152
Cardinalhealth
Neurology · 117d
Cleared Oct 30, 2003
BONESOURCE HAC FAST SETTING CEMENT
K032366
Stryker Instruments
Neurology · 90d

About Product Code GXP - Regulatory Context

510(k) Submission Activity

45 total 510(k) submissions under product code GXP since 1987, with 45 receiving FDA clearance (average review time: 153 days).

Submission volume has increased in recent years - 5 submissions in the last 24 months compared to 4 in the prior period - suggesting growing market activity in this device classification.

FDA 510(k) Review Time - GXP Product Code

FDA review times for GXP submissions have been consistent, averaging 152 days recently vs 154 days historically.

GXP devices are reviewed by the Neurology panel. Browse all Neurology devices →