First MPJ Hemi Implants

The BioPro First MPJ Hemi Implant is the globally trusted pre-fusion option for the treatment of hallux rigidus/limitus. BioPro offers the most comprehensive phalangeal based hemi implant system, along with the addition of our new patented HemiEDGE.™

Reproducible results

  • On average studies report 95%+ implant survivorship*
  • 65+ years of successful, clinical use[9]
  • Simple instrumentation

Satisfied patients

  • 97% patient satisfaction at 8.3 years[1]
  • Immediate weight bearing at the discretion of the surgeon
  • Return to activity on average 5 weeks faster than fusion patients[1]

A trusted pre-fusion option

In the right patient, our implants have been proven to last 20+ years[9]. If complications do arise, studies show conversion from a failed hallux phalangeal hemiarthroplasty to arthrodesis have similar success rates to primary arthrodesis.[13]

The HemiEDGE

Potential complications of hemiarthroplasty include implant subsidence, bone overgrowth and implant migration. The HemiEDGE was designed to address these complications by encompassing the proximal phalanx with an overlapping edge around the medial, lateral and dorsal sides. The implant articulating surface remains consistent with the standard design.


Clinical Studies*

1.Long-Term Results of Hemiarthroplasty Compared With Arthrodesis for Osteoarthritis of the First Metatarsophalangeal Joint (2018)
2.Operative Treatment for Osteoarthritis of the First Metatarsophalangeal Joint: Arthrodesis Versus Hemiarthroplasty. (2015)
3.Short-Term Clinical Outcome of Hemiarthroplasty Versus Arthrodesis for End-Stage Hallux Rigidus. (2015)
4.A retrospective cohort study of the BioPro hemiarthroplasty prosthesis. (2010)
5.First metatarsophalangeal hemiarthroplasty for hallux rigidus (2010)
6.A prospective investigation of the BioPro hemiarthroplasty for the first metatarsophalangeal joint.(2008)
7.First Metatarsophalangeal Hemiarthroplasty for Grade III and IV Hallux Rigidus (2005)
8.Contemporary Approaches to Stage II and III Hallux Rigidus: The Role of Metallic Hemiarthroplasty of the Proximal Phalanx (2005)
9.BIOPRO resurfacing endoprosthesis versus periarticular osteotomy for hallux rigidus: short-term follow-up and analysis. (2003)
10.Metallic proximal phalangeal hemiarthroplasty for hallux rigidus (1999)
11.An Update on the Metallic Hemiarthroplasty Resurfacing Prosthesis for the Hallux (1998)
12.A metallic hemiarthroplasty resurfacing prosthesis for the hallux metatarsophalangeal joint. (1994)