TABLE II.
Published Papers on Lapidus Procedures and Modifications*
Study | Level of Evidence | No. of Patients with Follow-up | No. of Surgeons | Joints Stabilized or Fused | Approach | Fixation (in Sequence) | Bone Graft | Orthobiologics | Distal Procedures | Comments |
Aiyer et al. (2016)5 | III: retrospective comparative series | NR | 4 | TMT1 + IntCunMT1 | NR | Plates (dorsal-medial) and screws | NR | NR | NR | Comparative study of different methods; fixation technique derived from images/figures (not described in detail in the text) |
Bednarz and Manoli (2000)6 | IV: case series | 26 | 1 | TMT1, MT1-2 (temporary) | Dorsal (between 1st and 2nd rays) + stab medial incision | Two 3.5-mm screws: | Local cancellous | No | Bunionectomy | Technique attributed to ST Hansen Jr. |
1. MT1 base to MedCun | 2nd screw removed at 13 weeks | |||||||||
2. MT1 to MT2 base | ||||||||||
Coetzee and Wickum (2004)7 | IV: retrospective case series | 91 | NR | TMT1, MT1-2 (temporary) | Dorsal (between 1st and 2nd rays) + stab medial incision | A. Two 3.5-mm screws: | Medial eminence + local cancellous | ±PRP | Bunionectomy, release of AHL, ± Akin procedure | |
1. MedCun to MT1 base | ||||||||||
2. MT1 to MT2 | ||||||||||
B. Modification with 4.0-mm screws | ||||||||||
Coetzee et al. (2004)8 | IV: retrospective case series | 24 | NR | TMT1, MT1-2 | Dorsal (between the EHL and EHB) + distal incision in the first web space + medial incision | A. Two 3.5-mm screws: | Local cancellous | No | Soft-tissue release ±bunionectomy | Revision surgery for failed HV correction |
1. MedCun to MT1 base | ||||||||||
2. MT1 to MT2 | ||||||||||
Conti et al. (2020)9,10 | IV: case series | 31 | 2 | TMT1 | Dorsal (1st TMT) | 2 crossed screws: | Cancellous autograft ± | ±DBM | Bunionectomy, ± Akin and/or modified McBride procedure | The authors have reported on the same study population and technique in 2 separate publications |
1. 4.0-mm MT1 to MedCun | ||||||||||
2. 3.5-mm MedCun to MT1 | ||||||||||
DeVries et al. (2011)11 | III: retrospective comparative analysis | 134 | 1 | TMT1 ± IntCunMT1 | NR | A. 2 crossed TMT screws ± 3rd screw from MT1 to IntCun | No | ±DBM or BMA | Various, not standard | |
B. Dorsomedial locking plate ±crossed TMT screw | ||||||||||
Faber et al. (2004)12 | I: therapeutic randomized controlled trial | 51 | 1 | TMT1 | Dorsal, lateral to EHL + distal incision in the first web space + medial incision | Two 3.5-mm crossed screws: | NR | No | Bunionectomy + AHL release | Number of feet reported, some of which are bilateral cases |
1. MedCun to MT1 | ||||||||||
2. MT1 to MedCun | ||||||||||
Ellington et al. (2011)13 | IV: retrospective case series | 23 | 2 | TMT1 ± MT1 to MT2 | Dorsal (1st TMT) | 2 crossed screws: | Occasionally allograft/autograft | No | Bunionectomy, soft-tissue release | Revision surgery for failed HV correction |
1. MedCun to MT1 | ||||||||||
2. MT1 to MedCun ± 3rd screw MT1 to MT2 | ||||||||||
Habbu et al. (2011)14 | IV: retrospective case series | 268 | 2 | TMT1 ± MT1-2 (temporary) | NR | Two 3.5-mm crossed screws: | NR | NR | Soft-tissue release | |
1. MedCun to MT1 | ||||||||||
2. MT1 to MedCun ± 3rd screw MT1 to MT2 | ||||||||||
Jung et al. (2007)15 | IV: retrospective case series | 12 | NR | TMT1 | Dorsolateral/medial | Two 3.5-mm crossed screws: | NR | NR | NR | Primary diagnosis: TMT OA; fixation technique derived from images/figures (not described in detail in the text) |
1. MedCun to MT1 | ||||||||||
2. MT1 to MedCun | ||||||||||
Kazzaz and Singh (2009)16 | IV: retrospective case series | 19 | 1 | TMT1 | Medial | Two 3.5-mm or 4.0-mm crossed screws: | NR | NR | Soft-tissue release + Akin | |
1. MedCun to MT1 | ||||||||||
2. MT1 to MedCun | ||||||||||
Klemola et al. (2017)17 | III: case-control study | 58 | NR | TMT1 | NR | Single, headless, variable-pitch compression screw | NR | NR | No distal procedure | |
Kopp et al. (2005)18 | IV: retrospective case series | 29 | 2 | TMT1 | Dorsal (1st TMT) | Two 3.5-mm crossed screws: | Local bone graft | NR | Soft-tissue release ±Akin | |
1. MedCun to MT1 | ||||||||||
2. MT1 to MedCun ± supplementary temporary Kirschner wire | ||||||||||
Langan et al. (2020)19 | IV: retrospective case series | 62 | 1 | TMT1 + IntCunMT1 | Dorsomedial, medial to the EHL | Dorsomedial locking plate + 4.0-mm cannulated screw from base of MT1 to IntCun ± 4.0-mm cannulated screw from MT1 to MT2 | NR | NR | Soft-tissue release ± bunionectomy ± Akin | |
Lee and Manoli (2001)20 | V: Case report | 1 | 1 | TMT1 + MT1MT2 | NR | Two 3.5-mm screws: | NR | NR | Akin | Method of fixation is derived from images/figures (not described in detail in the text) |
1. MT1 to MedCun | ||||||||||
2. MT1 to MT2 | ||||||||||
MacMahon et al. (2016)21 | IV: retrospective case series | 48 | 6 | NR | NR | NR | NR | NR | NR | |
Ray et al. (2019)22 | IV: retrospective case series | 57 | 4 | TMT1 | Dorsomedial, medial to the EHL | 2 small-profile, 4-hole titanium locking plates applied in biplanar 90°-90° fashion | NR | NR | Soft-tissue release | |
Rippstein et al. (2012)23 | IV: retrospective case series | 10 | 1 | TMT1 | Dorsomedial | 2 crossed 3.5-mm screws: | NR | NR | 1st MTP fusion | |
1. MedCun to MT1 | ||||||||||
2. MT1 to MedCun | ||||||||||
Sangeorzan and Hansen (1989)24 | IV: retrospective case series | 23 | 1 | TMT1 ±MT1MT2 or MT1IntCun | Dorsal, from the first web space to the TMT1 | 2 crossed 3.5-mm screws: | Tricortical bone graft from iliac crest ± | NR | NR | Authors state that their technique has changed during the study period |
1. MedCun to MT1 | ||||||||||
2. MT1 to IntCun or MT2 | ||||||||||
Thompson et al. (2005)25 | IV: retrospective case series | 182 | NR | TMT1 | Dorsal, from the first web space to the TMT1 ± medial MTP | 2 crossed 3.5-mm screws: | Local bone graft | NR | Soft-tissue release ± Akin | Some of the procedures were part of a flatfoot reconstruction |
1. MT1 to MedCun | ||||||||||
2. MedCun to MT1 | ||||||||||
Toolan (2007)26 | V: expert opinion surgical strategies | NA | NA | TMT1 ± MT1MT2 | Dorsal (1st TMT) | Two 3.5-mm screws: | Local bone graft | NR | Bunionectomy + AHL release | |
1. MT1 to MedCun | ||||||||||
2. MedCun to MT1 or MT1 to MT2 |
NR = not reported, MT = metatarsal, TMT = tarsometatarsal, IntCun = intermediate cuneiform, MedCun = medial cuneiform, PRP = platelet-rich plasma, ± = with or without, AHL = abductor hallucis longus, EHL = extensor hallucis longus, EHB = extensor hallucis brevis, HV = hallux valgus, DBM = demineralized bone matrix, BMA = bone marrow aspirate, OA = osteoarthritis, MTP = metatarsophalangeal, and NA = not applicable.