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Background <p>Acute patellar tendon rupture is a&#xa0;rare but severe injury of the knee extensor mechanism with an incidence of only about 0.68 per 100,000 person-years. Untreated patellar tendon rupture leads to complete loss of active knee extension and therefore severe functional impairment of the whole leg.</p> Objective <p>This review article provides evidence-based insights into the anatomy, epidemiology, pathophysiology, diagnostics, treatment options, prognosis and outcome factors of patellar tendon ruptures.</p> Material and methods <p>Systematic literature review and critical evaluation of the current scientific evidence on patellar tendon injuries.</p> Results <p>Patellar tendon ruptures occur most frequently in younger men under 40&#xa0;years, usually through forced eccentric quadriceps contraction. The diagnosis is based on the clinical triad of extension deficit, patella alta and palpable gap. Imaging using ultrasound or magnetic resonance imaging (MRI) confirms the diagnosis. Complete ruptures require surgical treatment, while partial ruptures can be treated conservatively.</p> Conclusion <p>The early diagnosis and adequate treatment are crucial for good functional outcomes. Up to 20% of patellar tendon ruptures are initially overlooked, which can have serious consequences.</p>

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Verletzungen der Patellarsehne

  • 期刊论文

  • 发表日期：

    2026年3月4日

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  • Richard Glaab

摘要

Background

Acute patellar tendon rupture is a rare but severe injury of the knee extensor mechanism with an incidence of only about 0.68 per 100,000 person-years. Untreated patellar tendon rupture leads to complete loss of active knee extension and therefore severe functional impairment of the whole leg.

Objective

This review article provides evidence-based insights into the anatomy, epidemiology, pathophysiology, diagnostics, treatment options, prognosis and outcome factors of patellar tendon ruptures.

Material and methods

Systematic literature review and critical evaluation of the current scientific evidence on patellar tendon injuries.

Results

Patellar tendon ruptures occur most frequently in younger men under 40 years, usually through forced eccentric quadriceps contraction. The diagnosis is based on the clinical triad of extension deficit, patella alta and palpable gap. Imaging using ultrasound or magnetic resonance imaging (MRI) confirms the diagnosis. Complete ruptures require surgical treatment, while partial ruptures can be treated conservatively.

Conclusion

The early diagnosis and adequate treatment are crucial for good functional outcomes. Up to 20% of patellar tendon ruptures are initially overlooked, which can have serious consequences.