Here is the design of a clinical trial:

Official Title: Outcome and Complications After Percutaneous Needle Versus Blade Achilles Tenotomy in Clubfoot Treated With the Ponseti Method

Included conditions:
- Club Foot
- Achilles Tendon Surgery

Study Armgroups:
- {'label': 'Needle tenotomy', 'type': 'EXPERIMENTAL', 'description': 'Patient will receive an Achilles tendon tenotomy using a 22G needle when randomized into the needle group. Follow-up to measure dorsiflexion and register complications will be assured at 3 weeks and 3 months.', 'interventionNames': ['Procedure: Achilles tendon tenotomy']}
- {'label': 'Blade tenotomy', 'type': 'ACTIVE_COMPARATOR', 'description': 'Patient will receive an Achilles tendon tenotomy using a 11 blade when randomized into the needle group. Follow-up to measure dorsiflexion and register complications will be assured at 3 weeks and 3 months.', 'interventionNames': ['Procedure: Achilles tendon tenotomy']}

Interventions:
- {'type': 'PROCEDURE', 'name': 'Achilles tendon tenotomy', 'description': 'Achilles tendon tenotomy during Ponseti treatment for clubfoot', 'armGroupLabels': ['Blade tenotomy', 'Needle tenotomy']}

Primary Outcomes:
- {'measure': 'Dorsiflexion', 'description': 'Ankle dorsiflexion measured in degrees', 'timeFrame': '3 months'}

Please estimate the sample size based on the assumption: 
Alpha (significance level) is set at 5%, power is set at 95%, and the standard deviation is 9.02. A dropout rate of 10% is expected during the first year of follow-up.
Sample size and power calculation
          Sample sizes are calculated using the WHO sample size determination software [22].
          Sample size calculation for primary outcome:Alphaâ=â5%Power 95%Non-inferiority margin: 4Standard deviation: 9.02
          Required sample sizeâ=â222 feet (111 in each arm).
          Drop-out from clubfoot programs is a common event in LMICs, especially throughout the bracing phase. In literature, drop-out rates of up to 30% have been reported over the total period of bracing which is about 3Â years on average [17, 18, 23]. Internal data from the Pehla Qadam clubfoot program shows similar outcome with about 30% drop-out over the entire course of the treatment. We therefore expect during the first year of follow-up to lose about 10% of our patients. We will therefore increase the sample size by 10% to adjust for the expected drop-out.
          A total sample size of 244 feet (122 per arm) will be recruited for this trial.