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Assessing Coronal Deformities of the Distal Humerus Using Lateral Radiographs.

Sathya Vamsi Krishna¹, Sanjana Kanumuri²

¹Hand Surgery Unit, Department of Orthopaedics, Trauma and Spine Surgery, Narayana Health City, Bommasandra, Bangalore, Karnataka, India.

The Indian Journal of Radiology & Imaging

|September 18, 2025

Summary

This summary is machine-generated.

A new method uses lateral elbow radiographs to detect cubitus varus and valgus deformities. This approach identifies key landmarks, eliminating the need for contralateral views for accurate assessment.

Keywords:

cubitus valgus cubitus varus lateral radiographs of the elbow

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Area of Science:

Orthopedic surgery
Radiology
Pediatric orthopedics

Background:

Cubitus varus and valgus deformities are common elbow abnormalities.
Current diagnostic methods often require bilateral anteroposterior radiographs, increasing radiation exposure and costs.
A need exists for a more efficient and cost-effective screening method.

Purpose of the Study:

To propose and validate a novel method for evaluating cubitus varus and valgus deformities using lateral elbow radiographs.
To identify a specific radiographic landmark for deformity assessment without contralateral imaging.

Main Methods:

Analysis of lateral elbow radiographs to identify the overlap of the trochlea and capitellum within the olecranon and coronoid processes.
Evaluation of the relationship between the radio-capitular line and the ulno-trochlear line.
Assessment of deformity based on the relative positioning of these lines.

Main Results:

The proposed method allows for the identification of cubitus varus and valgus deformities on a single lateral radiograph.
The overlap of specific trochlear and capitellar landmarks serves as a key indicator.
The relative positioning of the radio-capitular and ulno-trochlear lines accurately depicts the type of deformity.

Conclusions:

This novel technique provides a reliable, cost-effective, and efficient method for screening and assessing cubitus varus and valgus deformities.
It eliminates the requirement for contralateral radiographs, reducing radiation exposure and diagnostic time.
The method is valuable for orthopedic surgeons and radiologists evaluating elbow alignment.