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ORIGINAL ARTICLE
Year : 2017  |  Volume : 3  |  Issue : 2  |  Page : 55-59

The Role of Pirani Scoring in Predicting the Frequency of Casting and the Need for Percutaneous Achilles Tenotomy in the Treatment of Idiopathic Clubfoot Using the Ponseti Method


1 Department of Orthopaedics and Traumatology, University of Calabar, Cross River State, Nigeria
2 Department of Paediatrics, University of Calabar, Cross River State, Nigeria

Correspondence Address:
Chukwuemeka O Anisi
Department of Orthopaedics and Traumatology, University of Calabar Teaching Hospital, PMB 1278-Calabar, Cross River State
Nigeria
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/pors.pors_8_17

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Background: The Pirani scoring system is a simple tool widely used for grading the severity of clubfoot. This study was designed to objectively assess its value in predicting the total number of casts required, and the need for percutaneous Achilles tenotomy to achieve correction of the idiopathic clubfoot treated by the Ponseti method. Patients and Methods: All patients with idiopathic clubfoot, who attended our clubfoot clinic between January, 2013 and December, 2015, were prospectively studied. Each clubfoot was scored at presentation and at each visit by the first and second authors, using the Pirani scoring system. All patients were treated by the first and second authors by weekly stretching and cast application following the Ponseti treatment protocol until correction was achieved (with or without percutaneous Achilles tenotomy). Chi-square tests were applied to establish any existing relationship between the Pirani scores and the need for percutaneous tenotomy as well as the number of casts required to achieve correction. Results: A total of 69 patients with 108 idiopathic clubfeet were recruited into the study. In that, 14 patients defaulted, leaving the study with 81 clubfeet belonging to 55 patients. The median total Pirani score (TPS), midfoot contracture score and hindfoot contracture score at presentation were 4.0, 2.0 and 2.0, respectively. A total of 57 (70.4%) feet required percutaneous Achilles tenotomy to achieve correction. The average number of casts (including casts after tenotomy) required to achieve correction was 4.9 (2–10). The average number of casts required to achieve correction was 4.1 (2–10) for the no tenotomy group and 5.4 (3–10) for the tenotomy group. Statistically significant relationship was established between the TPS and number of casts required to achieve correction for both the tenotomy group (P = 0.039) and no tenotomy group (P = 0.05). Conclusion: High Pirani scores were associated with increased number of casts and percutaneous Achilles tenotomy for the correction of idiopathic clubfoot using the Ponseti method.


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