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Deltoid contracture: a case with multiple muscle contractures.

Hsin-Chang Chen¹, Tung-Fu Huang, Po-Hsin Chou

¹Department of Orthopedics and Traumatology, Taipei Veterans General Hospital, No. 201, Sec.2, Shih-Pai Rd, Taipei, 11217, Taiwan, ROC.

Archives of Orthopaedic and Trauma Surgery

|October 26, 2007

Summary

Multiple muscle contractures, including deltoid, gluteus, and quadriceps, can develop following repeated intramuscular injections. This case highlights injection-induced contractures irrespective of patient age, medication, or injection site.

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Area of Science:

Orthopedics
Neurology
Radiology

Background:

Deltoid contracture is an uncommon condition, with limited literature primarily based on case reports.
Muscle contractures can affect various muscles, but multiple contractures are rare.
Intramuscular injections are a known cause of muscle damage, with factors like injection site, age, and injectate properties influencing outcomes.

Observation:

A patient presented with multiple contractures affecting the bilateral deltoid, gluteus, and quadriceps muscles.
The patient had a history of repeated intramuscular injections throughout childhood and adulthood.
Radiographic and magnetic resonance imaging (MRI) revealed associated bone and joint abnormalities.

Findings:

The case demonstrates that intramuscular injections can induce muscular contractures.
These contractures occurred despite variations in the patient's age, medication, and injection site.
The findings suggest a potential link between repeated injections and the development of widespread muscle contractures.

Implications:

This case expands the understanding of potential complications from intramuscular injections.
It underscores the importance of considering injection history in patients presenting with multiple muscle contractures.
Further research may be warranted to elucidate the precise mechanisms and risk factors for injection-induced multiple muscle contractures.