Lapiplasty® Educational Video

Lapiplasty® Surgical Demonstration

Why perform the Lapiplasty® Procedure?

Because metatarsal frontal-plane rotation matters

While hallux valgus has traditionally been viewed as a transverse plane deformity, research indicates that it is actually a three-plane deformity with 87% of patients having abnormal frontal-plane rotation (i.e. pronation) of the 1st metatarsal.3 Correction of metatarsal rotation is critical for restoration of anatomic first ray alignment (MTP joint congruity and sesamoid position), which left unaddressed, is associated with up to 12x likelihood of radiographic recurrence.4,5,6 Due to the ability to address the triplanar deformity at its origin, the 1st tarsometarsal (TMT) joint provides the optimal surgical site for true anatomic restoration.

Learn more about metatarsal frontal-plane rotation.

What is the Lapiplasty® Procedure?

An instrumented, reproducible approach to 3-plane correction with rapid return to weight-bearing


Make your correction before you cut

The Lapiplasty® Positioner is engineered to quickly and reproducibly correct the alignment in all three planes, establishing and holding true anatomic alignment of the metatarsal and sesamoids.


Perform precision cuts with confidence

The Lapiplasty® Cut Guide delivers precise cuts with the metatarsal held in the corrected position, ensuring optimal cut trajectory while virtually eliminating the risk of metatarsal shortening.


Achieve controlled compression of joint surfaces

The Lapiplasty® Compressor delivers over 150N of controlled compression7 to the precision-cut joint surfaces, while maintaining the 3-plane correction.


Apply multiplanar fixation for robust stability

Low-profile Biplanar™ Plating provides biomechanically-tested multiplanar stability for rapid return to weight-bearing.7,8

How does the Lapiplasty® Procedure work?

Key Surgical Steps*

* Treace Medical Concepts, Inc. Surgical Technique LBL 1405-9001
Covered by one of more patents. See

Lapiplasty® System

Anatomic Biplanar™ Implants

Lapiplasty® System 1

Sterile-packed Biplanar™ Plating kit for versatility to fit each patient's anatomy, while delivering superior multiplanar strength.
Plate Width
Locking Screws
2.5x12mm (5)
2.5x14mm (4)

Lapiplasty® System 2

An evolution of Biplanar™ Plating with increased cross-sectional width and 2.7mm screws for additional construct strength.
Plate Width
Locking Screws
2.7x12mm (5)
2.7x14mm (4)

Lapiplasty® System 3R

Most robust Biplanar™ Plating option with widest cross-section, 3.0mm screws, and increased span to address revision cases and challenging anatomy.
Plate Width
Locking Screws
3.0x12mm (4)
3.0x16mm (8)

Plantar Python® Plate

Sterile-packed for use with the Lapiplasty® System, the Platnar Python® Plate is uniquely pre-contoured for easy-to-apply tension-side fixation.
S1: SD11/12 (L/R) S2: SD14/15 (L/R)

One System for All Your Hallux Valgus Needs

Sterile-packed kits for operational efficiency

Lapiplasty® Compression Screws

See Instructions for Use LBL 1405-9056*

Biomechanically Proven for Rapid Weight-Bearing

Biomechanical test specimens were constructed using Sawbones surrogate bone models (Pacific Research Laboratories Inc, Vashon, WA) and tested in cantilever bending to simulate functional lst TMT joint loading. The testing included both static ultimate failure and cyclic load to failure. Three different studies were performed under this test protocol, which are detailed below.

The Evidence-Based Solution for 3-Plane Correction

Treace Medical Concepts is dedicated to advancing the understanding of the Lapiplasty® Procedure and its benefits to patients, surgeons, and the healthcare system through research studies and publications in the peer-reviewed literature.

Early Weight-bearing Following Three-Plane 1st TMT Correction with the Lapiplasty® Procedure: 13.5-Month Multicenter Outcomes

Multicenter, retrospective study of 72 hallux valgus patients (61 feet meeting 1-year endpoint) treated with the Lapiplasty® Procedure and early return to weight-bearing (average 10.5 days post-op). At average follow-up of 13.5 months, the results demonstrated 96.7% of patients maintained their 3-plane correction (intermetatarsal angle, hallux valgus angle, and tibial sesamoid position), and only 1.6% experienced a symptomatic nonunion complication.

Santrock et al. 2018 AOFAS Annual Meeting, Boston, MA (publication in progress)

Comparison of Tibial Sesamoid Position on Anteroposterior and Axial Radiographs Before and After Triplane Tarsal Metatarsal Joint Arthrodesis

Clinical study of 21 feet at 5.2 month average follow-up demonstrating the ability of the Lapiplasty Procedure to successfully correct the three-dimensional (3D) deformity (including metatarsal frontal-plane rotation) In 95.2% of cases, and also restore the intermetatarsal angle to 5.5º, hallux valgus angle to 7.3'º and tibial sesamold position to 1.8.

Dayton P, Feilmeier M. J Foot Ankle Surg. 2017, 56:1046.

Lapiplasty® Resources


1Smith B, et al. 2017 AOFAS Annual Meeting, Seattle, WA.
2Santrock R, et al. 2018 AOFAS Annual Meeting, Boston, MA.
3Kim Y, Kim JS, Young KW, et al. Foot Ankle Int. 2015, 36:944-52.
4Pentikainen I, Ojala R, Ohtonen P, et al. Foot Ankle Int. 2014, 35:1262-7.
5Okuda R, Kinoshita M, Yasuda T, et al. J Bone Joint Surg Am. 2009, 91:1637-4.
6Okuda R, Kinoshita M, Yasuda T, et al. J Bone Joint Surg Am. 2007, 89:2163-72..
7Data on file.
8Dayton P, et al. J Foot Ankle Surg, 2016, 55:567-71