Abstract
We reviewed the outcomes of 79 procedures in 76 patients who underwent first metatarsophalangeal
joint hemiarthroplasty. The cohort included 23 men (2 bilateral cases) and 53 women
(1 bilateral case), with a mean age of 59.6 ± 11.05 years and a mean follow-up of
2.91 years (range, 1.6-4.5 years). Hemiarthroplasty with the BioPro Hemi Implant (BioPro,
Inc., Port Huron, MI) was undertaken in all cases, and 34 (43.04%) of the procedures
involved long flexor transfer to the proximal phalanx. Mean first metatarsophalangeal
joint dorsiflexion increased from 36.13° ± 17.89° to 56.92° ± 9.82° (P < .0001), plantarflexion increased from 2.71° ± 8.43° to 9.05° ± 4.52° (P < .0001), the first intermetatarsal angle decreased from 8.65° ± 1.17° to 8.41° ±
0.90° (P = .0009), and the prevalence of first-ray elevatus went from 52 (65.82%) to 44 (55.70%)
(P = .0047). Postoperative prevalences included: antalgic gait, 11 (13.92%); normal
hallux purchase, 74 (93.67%); satisfaction with the appearance of the great toe, 49
(62.03%); ability to wear conventional shoes, 42 (53.16%); freedom from pain, 45 (56.96%);
and satisfaction or high level of satisfaction with the outcome, 68 (86.08%). The
mean postoperative American College of Foot and Ankle Surgeons Universal Evaluation
score was 94.00 (range, 44-100). Eight (10.13%) cases experienced complications: 2
severe pain (1 required implant removal), 1 sesamoiditis, 1 extensor hallucis longus
contracture, 1 hallux subluxation and 1 dislocation, and 2 misaligned implants. Based
on these results, use of the BioPro hemi-implant is a useful option for the treatment
of first metatarsophalangeal joint degeneration.
Level of Clinical Evidence
Keywords
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Article info
Publication history
Published online: April 26, 2010
Footnotes
Financial Disclosure: None reported.
Conflict of Interest: David C. Novicki, DPM, periodically gives lectures for Biopro about first MTPJ implants.
Identification
Copyright
© 2010 American College of Foot and Ankle Surgeons. Published by Elsevier Inc. All rights reserved.
