Cleared Traditional

K202705 - Prime and DYNASTY® Additive Manufacturing Shells (FDA 510(k) Clearance)

Class II Orthopedic device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K202705 · Microport Orthopedics, Inc. · Orthopedic device
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Aug 2021
Decision
338d
Days
Class 2
Risk

K202705 is an FDA 510(k) clearance for the Prime and DYNASTY® Additive Manufacturing Shells. Classified as Hip Prosthesis, Semi-constrained, Cemented, Metal/polymer, + Additive, Porous, Uncemented (product code OQG), Class II - Special Controls.

Submitted by Microport Orthopedics, Inc. (Arlington, US). The FDA issued a Cleared decision on August 20, 2021 after a review of 338 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3358 - the FDA orthopedic device regulatory framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Standard predicate-based submission. Elevated predicate reliance profile. This clearance follows a standard predicate-based equivalence path within the Orthopedic review framework, consistent with the majority of Class II 510(k) submissions.

View all Microport Orthopedics, Inc. devices

Submission Details

510(k) Number K202705 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 16, 2020
Decision Date August 20, 2021
Days to Decision 338 days
Submission Type Traditional
Review Panel Orthopedic (OR)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
216d slower than avg
Panel avg: 122d · This submission: 338d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code OQG Hip Prosthesis, Semi-constrained, Cemented, Metal/polymer, + Additive, Porous, Uncemented
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3358
Definition 1. Non-inflammatory Degenerative Joint Disease Including Osteoarthritis And Avascular Necrosis. 2. Rheumatoid Arthritis. 3. Correction Of Functional Deformity. 4. Treatment Of Non-union, Femoral Neck Fracture, And Trochanteric Fractures Of The Proximal Femur With Head Involvement, Unmanageable By Other Techniques. 5. Revision Procedures Where Other Treatment Or Devices Have Failed. Cemented And Uncemented Use.
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Orthopedic devices follow this clearance model.