Plantar FascitisNCT07436923
Calcaneal Osteotomy for Recalcitrant Planter Fasciosis
A study testing Calcaneal osteotomy for recalcitrant planter fasciosis in people with Plantar Fascitis, run by Assiut University.
Trial summary
The aim of this study is to assess the efficacy of planter displacement calcaneal osteotomy for intractable plantar fasciosis by decreasing the tension of the plantar fascia around the calcaneal attachment while keeping the plantar fascia intact. Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Plantar Fascitis
- What is being tested?
- Calcaneal osteotomy for recalcitrant planter fasciosis
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 11 participants
- Where
- No sites listed yet
- Study dates
- 1 Mar 2026to 1 Oct 2028
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- All adult patients with age range from 18 to 65 years with unilateral or bilateral planter fasciosis after clinical and radiological diagnosis confirmation, who failed conservative treatment for at least 6 months or recurrent cases.
- MRI \& US proof of planter fasciosis showing thickness of planter fascia >4mm
Who cannot join
- All other causes of heel pain including polyneuropathy, planter fascia rupture, seronegative arthropathies, rheumatoid arthritis in bilateral cases, abscess or neoplasm affecting the soft tissue, and bone occult fracture or infection.
- Age groups below 18 years old and above 65 years old.
- Plantar fasciosis cases having pes planus with diffuse foot pain not only localized to the planter fascia origin (the medial tubercle of the calcaneus - a bony prominence on the inferomedial aspect of the calcaneus).
- Diabetic patients
- Primary tarsal tunnel syndrome (not presented secondary to a deformity or another cause)
Trial locations and contacts
No sites are listed yet. Contact the study team or a site near you to ask about taking part.
About this study
Official title: Evaluation of Results of Calcaneal Osteotomy in Adult Patient With Recalcitrant Planter Fasciosis: Short Term Results
The aim of this study is to assess the efficacy of planter displacement calcaneal osteotomy for intractable plantar fasciosis by decreasing the tension of the plantar fascia around the calcaneal attachment while keeping the plantar fascia intact.
Read the detailed description
Plantar fasciosis is a leading cause of heel pain in adults and represents a degenerative rather than inflammatory condition of the plantar fascia. Most cases resolve with conservative measures; however, up to 10-15% remain symptomatic and may require surgical intervention.
Plantar fascia release-either open or endoscopic-remains a standard surgical option for recalcitrant cases. However, this procedure may compromise foot biomechanics. Recent biomechanical and clinical studies have demonstrated that partial or complete release reduces longitudinal arch height and increases midfoot strain, particularly when more than 50% of the fascia is divided. Such alterations in load distribution can result in lateral column overload, metatarsalgia, and sinus tarsi pain. Endoscopic release has also been associated with medial arch reduction and the development of lateral column symptoms within months postoperatively, further highlighting these risks. Additionally, comparative studies report wound complications, nerve irritation, and recurrence of heel pain in a notable subset of patients undergoing plantar fasciotomy. Up to 50% of patients may experience persistent or recurrent pain following the procedure.
Entrapment of the first branch of the lateral plantar nerve (Baxter's nerve) is another under-recognized cause of chronic heel pain, often coexisting with or mimicking plantar fasciosis. Decompression of Baxter's nerve, either alone or combined with limited plantar fascia release, has been shown to improve outcomes in resistant cases.
Given these limitations, calcaneal osteotomy has emerged as alternative surgical strategies. By altering the mechanical axis of the calcaneus and inducing localized bone remodeling, these techniques aim to unload the plantar fascia insertion without compromising arch stability. Early reports suggest that calcaneal osteotomy, particularly when combined with Baxter's nerve release, may offer superior pain relief and functional recovery in recalcitrant plantar fasciosis.
- Conditions
- Plantar Fascitis
- Being tested
- Calcaneal osteotomy for recalcitrant planter fasciosis
- Keywords
- interactable planter fasciitis, recalcitrant planter fasciosis, heel spur, anteromedial heel pain
- Medical subject headings
- Heel Spur
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Calcaneal osteotomy for recalcitrant planter fasciosisProcedure or surgery
planter displacement calcaneal osteotomy
| Study group | Role | What they receive |
|---|---|---|
| Calcaneal osteotomy | Experimental | Calcaneal osteotomy skin incision will be oblique and directed from the infero-posterior edge of the lateral malleolus to the inferior edge of the calcaneal body, and you should be careful not to cause injury to the sural nerve. Osteotomy of the exposed lateral wall will be performed from 1 cm anterior to the calcaneal attachment of the plantar fascia to 1 cm anterior to the calcaneal attachment of the Achilles tendon. After the osteotomy, approximately 5 mm plantar displacement of the proximal fragment, which include attachment of the plantar fascia, will be performed. Patients with a pronated foot before surgery will have an additional approximately 5 mm medial displacement of the proximal fragment simultaneously to correct malalignment. Fixation after the osteotomy will be performed under an image intensifier using one or two cannulated cancellous screws 7.3 mm in diameter, which will be inserted from the infero-medial of the calcaneal tuberosity to the distal fragment. Receives: Procedure: Calcaneal osteotomy for recalcitrant planter fasciosis |
What is being measured
The primary outcome is the main question the study is designed to answer.
AOFAS score
the change in the American Orthopaedic Foot and Ankle Society Ankle Hindfoot Scale (AOFAS score) score of 100 points. Higher score means better function with less pain and good alignment
Measured: 6 months after surgery
Secondary outcomes (2)
VAS
Pain assessment measured pre \& post-operative by VAS (Visual Analog Scale) at 12 months
Measured: 12 months
Foot pressure
Foot pressure measurement pre \& post-operative
Measured: 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Feb 2026
- Study start1 Mar 2026 (estimated)
- Primary completion1 Oct 2027 (estimated)
- Study completion1 Oct 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (7)Papers the sponsor has linked to this study.
- Other trials for Plantar FascitisStudies of the same condition, open and under way.
- More trials run by Assiut UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 11 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Assiut University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, George Botros Sayed Mosa, Assiut University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07436923
- Sponsor's protocol ID
- osteotomy in planter fasciosis
- Status last verified
- Feb 2026
- First submitted
- 22 Feb 2026
- Last updated
- 27 Feb 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Buchbinder R. Clinical practice. Plantar fasciitis. N Engl J Med. 2004 May 20;350(21):2159-66. doi: 10.1056/NEJMcp032745. No abstract available.
PubMed 15152061Goff JD, Crawford R. Diagnosis and treatment of plantar fasciitis. Am Fam Physician. 2011 Sep 15;84(6):676-82.
PubMed 21916393Rodriguez-Sanz J, Roche-Seruendo LE, Lopez-de-Celis C, Canet-Vintro M, Ordoyo-Martin J, Fernandez-Gibello A, Labata-Lezaun N, Perez-Bellmunt A. Effects of Plantar Fascia Release and the Use of Foot Orthoses Affect Biomechanics of the Medial Longitudinal Arch of the Foot: A Cadaveric Study. Am J Phys Med Rehabil. 2024 Jul 1;103(7):595-602. doi: 10.1097/PHM.0000000000002414. Epub 2024 Jan 12.
PubMed 38261788Liew SK, Saw A, Chua YP. Foot Arch Changes after Endoscopic Plantar Fascia Release for Recalcitrant Plantar Fasciitis. Malays Orthop J. 2022 Jul;16(2):78-86. doi: 10.5704/MOJ.2207.010.
PubMed 35992989Baxter DE, Thigpen CM. Heel pain--operative results. Foot Ankle. 1984 Jul-Aug;5(1):16-25. doi: 10.1177/107110078400500103.
PubMed 6479759Yanbin X, Haikun C, Xiaofeng J, Wanshan Y, Shuangping L. Treatment of Chronic Plantar Fasciitis With Percutaneous Latticed Plantar Fasciotomy. J Foot Ankle Surg. 2015 Sep-Oct;54(5):856-9. doi: 10.1053/j.jfas.2015.02.008. Epub 2015 Jun 6.
PubMed 26058817Kalen V, Brecher A. Relationship between adolescent bunions and flatfeet. Foot Ankle. 1988 Jun;8(6):331-6. doi: 10.1177/107110078800800609.
PubMed 3402852
Study at a glance
From the registry record, last updated by the sponsor on 27 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Results of Calcaneal Osteotomy in Adult Patient With Recalcitrant Planter Fasciosis: Short Term Results
- ClinicalTrials.gov ID
- NCT07436923
- Acronym / sponsor ID
- osteotomy in planter fasciosis
- Conditions
- Plantar Fascitis
- Keywords
- interactable planter fasciitis, recalcitrant planter fasciosis, heel spur, anteromedial heel pain
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 11 participants (estimated)
- Lead sponsor
- Assiut UniversityUniversity, hospital or other
- Study start
- 1 Mar 2026 (estimated)
- Primary completion
- 1 Oct 2027 (estimated)
- Study completion
- 1 Oct 2028 (estimated)
- First posted
- 27 Feb 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this study is to assess the efficacy of planter displacement calcaneal osteotomy for intractable plantar fasciosis by decreasing the tension of the plantar fascia around the calcaneal attachment while keeping the plantar fascia intact.
Detailed description
Plantar fasciosis is a leading cause of heel pain in adults and represents a degenerative rather than inflammatory condition of the plantar fascia. Most cases resolve with conservative measures; however, up to 10-15% remain symptomatic and may require surgical intervention.
Plantar fascia release-either open or endoscopic-remains a standard surgical option for recalcitrant cases. However, this procedure may compromise foot biomechanics. Recent biomechanical and clinical studies have demonstrated that partial or complete release reduces longitudinal arch height and increases midfoot strain, particularly when more than 50% of the fascia is divided. Such alterations in load distribution can result in lateral column overload, metatarsalgia, and sinus tarsi pain. Endoscopic release has also been associated with medial arch reduction and the development of lateral column symptoms within months postoperatively, further highlighting these risks. Additionally, comparative studies report wound complications, nerve irritation, and recurrence of heel pain in a notable subset of patients undergoing plantar fasciotomy. Up to 50% of patients may experience persistent or recurrent pain following the procedure.
Entrapment of the first branch of the lateral plantar nerve (Baxter's nerve) is another under-recognized cause of chronic heel pain, often coexisting with or mimicking plantar fasciosis. Decompression of Baxter's nerve, either alone or combined with limited plantar fascia release, has been shown to improve outcomes in resistant cases.
Given these limitations, calcaneal osteotomy has emerged as alternative surgical strategies. By altering the mechanical axis of the calcaneus and inducing localized bone remodeling, these techniques aim to unload the plantar fascia insertion without compromising arch stability. Early reports suggest that calcaneal osteotomy, particularly when combined with Baxter's nerve release, may offer superior pain relief and functional recovery in recalcitrant plantar fasciosis.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Calcaneal osteotomy | Experimental | Procedure: Calcaneal osteotomy for recalcitrant planter fasciosisCalcaneal osteotomy skin incision will be oblique and directed from the infero-posterior edge of the lateral malleolus to the inferior edge of the calcaneal body, and you should be careful not to cause injury to the sural nerve. Osteotomy of the exposed lateral wall will be performed from 1 cm anterior to the calcaneal attachment of the plantar fascia to 1 cm anterior to the calcaneal attachment of the Achilles tendon. After the osteotomy, approximately 5 mm plantar displacement of the proximal fragment, which include attachment of the plantar fascia, will be performed. Patients with a pronated foot before surgery will have an additional approximately 5 mm medial displacement of the proximal fragment simultaneously to correct malalignment. Fixation after the osteotomy will be performed under an image intensifier using one or two cannulated cancellous screws 7.3 mm in diameter, which will be inserted from the infero-medial of the calcaneal tuberosity to the distal fragment. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- All adult patients with age range from 18 to 65 years with unilateral or bilateral planter fasciosis after clinical and radiological diagnosis confirmation, who failed conservative treatment for at least 6 months or recurrent cases.
- MRI \& US proof of planter fasciosis showing thickness of planter fascia >4mm
Key exclusion criteria (5 listed)
- All other causes of heel pain including polyneuropathy, planter fascia rupture, seronegative arthropathies, rheumatoid arthritis in bilateral cases, abscess or neoplasm affecting the soft tissue, and bone occult fracture or infection.
- Age groups below 18 years old and above 65 years old.
- Plantar fasciosis cases having pes planus with diffuse foot pain not only localized to the planter fascia origin (the medial tubercle of the calcaneus - a bony prominence on the inferomedial aspect of the calcaneus).
- Diabetic patients
- Primary tarsal tunnel syndrome (not presented secondary to a deformity or another cause)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Calcaneal osteotomy for recalcitrant planter fasciosisplanter displacement calcaneal osteotomy | Procedure or surgery | Calcaneal osteotomy |
Primary outcome
AOFAS score
Time frame: 6 months after surgery
the change in the American Orthopaedic Foot and Ankle Society Ankle Hindfoot Scale (AOFAS score) score of 100 points. Higher score means better function with less pain and good alignment
2 secondary outcomes
VAS
Time frame: 12 months
Foot pressure
Time frame: 12 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Feb 2026.
- Background: PubMed 15152061Buchbinder R. Clinical practice. Plantar fasciitis. N Engl J Med. 2004 May 20;350(21):2159-66. doi: 10.1056/NEJMcp032745. No abstract available.
- Background: PubMed 21916393Goff JD, Crawford R. Diagnosis and treatment of plantar fasciitis. Am Fam Physician. 2011 Sep 15;84(6):676-82.
- Background: PubMed 38261788Rodriguez-Sanz J, Roche-Seruendo LE, Lopez-de-Celis C, Canet-Vintro M, Ordoyo-Martin J, Fernandez-Gibello A, Labata-Lezaun N, Perez-Bellmunt A. Effects of Plantar Fascia Release and the Use of Foot Orthoses Affect Biomechanics of the Medial Longitudinal Arch of the Foot: A Cadaveric Study. Am J Phys Med Rehabil. 2024 Jul 1;103(7):595-602. doi: 10.1097/PHM.0000000000002414. Epub 2024 Jan 12.
- Background: PubMed 35992989Liew SK, Saw A, Chua YP. Foot Arch Changes after Endoscopic Plantar Fascia Release for Recalcitrant Plantar Fasciitis. Malays Orthop J. 2022 Jul;16(2):78-86. doi: 10.5704/MOJ.2207.010.
- Background: PubMed 6479759Baxter DE, Thigpen CM. Heel pain--operative results. Foot Ankle. 1984 Jul-Aug;5(1):16-25. doi: 10.1177/107110078400500103.
- Background: PubMed 26058817Yanbin X, Haikun C, Xiaofeng J, Wanshan Y, Shuangping L. Treatment of Chronic Plantar Fasciitis With Percutaneous Latticed Plantar Fasciotomy. J Foot Ankle Surg. 2015 Sep-Oct;54(5):856-9. doi: 10.1053/j.jfas.2015.02.008. Epub 2015 Jun 6.
- Background: PubMed 3402852Kalen V, Brecher A. Relationship between adolescent bunions and flatfeet. Foot Ankle. 1988 Jun;8(6):331-6. doi: 10.1177/107110078800800609.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Questions about this trial
What is this clinical trial studying?
A study testing Calcaneal osteotomy for recalcitrant planter fasciosis in people with Plantar Fascitis, run by Assiut University.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 27 Feb 2026. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact George Botros Mosa, Master (+201012762194, george.17289633@med.aun.edu.eg), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
AOFAS score (time frame: 6 months after surgery). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07436923, which also lists 7 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Feb 2026.