A Study to Compare Early and Partial Weight-bearing After Hallux Valgus Surgery
Is Full Weight Bearing After the Modified Lapidus Operation Possible? A Randomized Controlled Trial to Compare Early and Partial Weight-bearing
1 other identifier
interventional
122
1 country
1
Brief Summary
This is a two-arm randomized controlled trial with the aim to evaluate the effectiveness and safety of post-operative management after a modified Lapidus arthrodesis with/without an Akin or a Weil/Hohmann surgery fusion with immediate complete weight-bearing compared with partial weight-bearing (10 - 15kg) for 6 weeks as a novel approach for rehabilitation after a foot surgery.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Jan 2023
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 6, 2022
CompletedFirst Posted
Study publicly available on registry
September 9, 2022
CompletedStudy Start
First participant enrolled
January 19, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
July 1, 2026
August 6, 2025
August 1, 2025
3.4 years
September 6, 2022
August 5, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Subjective functional recovery measured by Olerud and Molander Ankle Score (OMAS)
The Olerud and Molander Ankle Score (OMAS) is a functional rating scale from 0 to 100 and is based on nine different items: pain, stiffness, swelling, stair climbing, running, jumping, squatting, supports and activities of daily living. Higher scores mean a better outcome.
at 6 weeks
Secondary Outcomes (4)
Pain on a Visual Analogue Scale
At the day of surgery, at 6, 12 and 24 weeks postoperatively.
Bone consolidation through anteroposterior and lateral foot x-rays
6 weeks and 12 weeks. At 24 weeks in case of fracture non-union reported at the 12th week postoperatively
American Orthopedic Foot and Ankle Score questionnaire
at 6, 12 and 24 weeks
Subjective functional recovery measured by Olerud and Molander Ankle Score (OMAS)
at 12 and 24 weeks
Study Arms (2)
Partial weight-bearing (10 - 15kg)
OTHERImmediate post-operative partial weight-bearing (10 - 15kg) with a VACOPASO shoe for 6 weeks, crutches and antithrombotic prophylaxis
Complete weight-bearing
EXPERIMENTALImmediate post-operative complete weight-bearing with a VACOPASO shoe for 6 weeks and antithrombotic prophylaxis
Interventions
Immediate post-operative partial weight-bearing (10 - 15kg) with a VACOPASO shoe for 6 weeks
Complete post-operative weight-bearing with a VACOPASO shoe for 6 weeks
Eligibility Criteria
You may qualify if:
- Patient who undergo modified Lapidus arthrodesis operation and associated with:
- Additional surgical gestures such as e.g. interventions on the proximal phalanx of the first finger (Akin) or interventions on the 2nd and / or 3rd ray (Weil / Hohmann) \[23,24\].
- Willingness and ability to participate in the trial
- Signed Informed Consent
You may not qualify if:
- Diabetes mellitus
- Rheumatoid arthritis
- Previous foot surgery
- Classic Lapidus surgery
- Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, general physical problem of the participant, etc.
- Inability or contraindications to undergo the investigated intervention
- Pregnant women
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
EOC
Lugano, 6900, Switzerland
Related Publications (20)
Olerud C, Molander H. A scoring scale for symptom evaluation after ankle fracture. Arch Orthop Trauma Surg (1978). 1984;103(3):190-4. doi: 10.1007/BF00435553.
PMID: 6437370BACKGROUNDLAPIDUS PW. A quarter of a century of experience with the operative correction of the metatarsus varus primus in hallux valgus. Bull Hosp Joint Dis. 1956 Oct;17(2):404-21. No abstract available.
PMID: 13413410BACKGROUNDButson AR. A modification of the Lapidus operation for hallux valgus. J Bone Joint Surg Br. 1980 Aug;62(3):350-2. doi: 10.1302/0301-620X.62B3.6997319.
PMID: 6997319BACKGROUNDKitaoka HB, Alexander IJ, Adelaar RS, Nunley JA, Myerson MS, Sanders M. Clinical rating systems for the ankle-hindfoot, midfoot, hallux, and lesser toes. Foot Ankle Int. 1994 Jul;15(7):349-53. doi: 10.1177/107110079401500701.
PMID: 7951968RESULTDrummond D, Motley T, Kosmopoulos V, Ernst J. Stability of Locking Plate and Compression Screws for Lapidus Arthrodesis: A Biomechanical Comparison of Plate Position. J Foot Ankle Surg. 2018 May-Jun;57(3):466-470. doi: 10.1053/j.jfas.2017.10.025. Epub 2018 Feb 19.
PMID: 29472168RESULTRay RG, Ching RP, Christensen JC, Hansen ST Jr. Biomechanical analysis of the first metatarsocuneiform arthrodesis. J Foot Ankle Surg. 1998 Sep-Oct;37(5):376-85. doi: 10.1016/s1067-2516(98)80045-8.
PMID: 9798168RESULTSangeorzan BJ, Hansen ST Jr. Modified Lapidus procedure for hallux valgus. Foot Ankle. 1989 Jun;9(6):262-6. doi: 10.1177/107110078900900602.
PMID: 2744666RESULTMyerson M, Allon S, McGarvey W. Metatarsocuneiform arthrodesis for management of hallux valgus and metatarsus primus varus. Foot Ankle. 1992 Mar-Apr;13(3):107-15. doi: 10.1177/107110079201300301.
PMID: 1601337RESULTBednarz PA, Manoli A 2nd. Modified lapidus procedure for the treatment of hypermobile hallux valgus. Foot Ankle Int. 2000 Oct;21(10):816-21. doi: 10.1177/107110070002101004.
PMID: 11128011RESULTSaxena A, Nguyen A, Nelsen E. Lapidus bunionectomy: Early evaluation of crossed lag screws versus locking plate with plantar lag screw. J Foot Ankle Surg. 2009 Mar-Apr;48(2):170-9. doi: 10.1053/j.jfas.2008.12.009.
PMID: 19232969RESULTBlitz NM, Lee T, Williams K, Barkan H, DiDimenico LA. Early weight bearing after modified lapidus arthodesis: a multicenter review of 80 cases. J Foot Ankle Surg. 2010 Jul-Aug;49(4):357-62. doi: 10.1053/j.jfas.2010.04.014.
PMID: 20610203RESULTKopp FJ, Patel MM, Levine DS, Deland JT. The modified Lapidus procedure for hallux valgus: a clinical and radiographic analysis. Foot Ankle Int. 2005 Nov;26(11):913-7. doi: 10.1177/107110070502601103.
PMID: 16309603RESULTCatanzariti AR, Mendicino RW, Lee MS, Gallina MR. The modified Lapidus arthrodesis: a retrospective analysis. J Foot Ankle Surg. 1999 Sep-Oct;38(5):322-32. doi: 10.1016/s1067-2516(99)80003-9.
PMID: 10553545RESULTMyerson MS, Badekas A. Hypermobility of the first ray. Foot Ankle Clin. 2000 Sep;5(3):469-84.
PMID: 11232392RESULTDelgado DA, Lambert BS, Boutris N, McCulloch PC, Robbins AB, Moreno MR, Harris JD. Validation of Digital Visual Analog Scale Pain Scoring With a Traditional Paper-based Visual Analog Scale in Adults. J Am Acad Orthop Surg Glob Res Rev. 2018 Mar 23;2(3):e088. doi: 10.5435/JAAOSGlobal-D-17-00088. eCollection 2018 Mar.
PMID: 30211382RESULTArnold H. [The Akin procedure as closing wedge osteotomy for the correction of a hallux valgus interphalangeus deformity]. Oper Orthop Traumatol. 2008 Dec;20(6):477-83. doi: 10.1007/s00064-008-1503-8. German.
PMID: 19137394RESULTPodskubka A, Stedry V, Kafunek M. [Distal shortening osteotomy of the metatarsals using the Weil technique: surgical treatment of metatarsalgia and dislocation of the metatarsophalangeal joint]. Acta Chir Orthop Traumatol Cech. 2002;69(2):79-84. Czech.
PMID: 12073646RESULTChristensen PH, Hansen TB. Hallux valgus correction using a modified Hohmann technique. Foot Ankle Int. 1995 Apr;16(4):177-80. doi: 10.1177/107110079501600401.
PMID: 7787972RESULTNix S, Smith M, Vicenzino B. Prevalence of hallux valgus in the general population: a systematic review and meta-analysis. J Foot Ankle Res. 2010 Sep 27;3:21. doi: 10.1186/1757-1146-3-21.
PMID: 20868524RESULTDeal JB Jr, Patzkowski JC, Groth AT, Ryan PM, Dowd TC, Osborn PM, Anderson CD, Ficke JR, Kirk KL. Early vs Delayed Weightbearing After Microfracture of Osteochondral Lesions of the Talus: A Prospective Randomized Trial. Foot Ankle Orthop. 2019 May 6;4(2):2473011419838832. doi: 10.1177/2473011419838832. eCollection 2019 Apr.
PMID: 35097322RESULT
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Martin Riegger, MD
EOC
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 6, 2022
First Posted
September 9, 2022
Study Start
January 19, 2023
Primary Completion (Estimated)
July 1, 2026
Study Completion (Estimated)
July 1, 2026
Last Updated
August 6, 2025
Record last verified: 2025-08