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Quadriceps and patellar tendon rupture.

L E Ramseier1, C M L Werner, M Heinzelmann

  • 1Department of Surgery, University Hospital, Raemistrasse 100, CH-8091 Zurich, Switzerland.

Injury
|February 25, 2006
PubMed
Summary
This summary is machine-generated.

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Quadriceps and patellar tendon ruptures require prompt surgical repair for knee function. This study found no significant long-term differences in strength or motion between injured and uninjured legs, regardless of risk factors.

Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Traumatology

Background:

  • Tendon ruptures, though rare, significantly impair knee extensor function.
  • Immediate surgical repair is crucial for restoring continuity and enabling early rehabilitation.

Purpose of the Study:

  • To evaluate long-term outcomes after surgical repair of quadriceps or patellar tendon ruptures.
  • To assess the influence of risk factors and multiple injuries on functional recovery.

Main Methods:

  • Retrospective analysis of 36 patients undergoing tendon rupture repair (1993-2000).
  • Follow-up (>24 months) included clinical examination, strength testing, and validated knee outcome scores (HSS, KSS, Turba, SF-36).
  • Assessment of patient history, risk factors, and injury patterns (primary vs. rerupture, quadriceps vs. patellar).

Related Experiment Videos

Main Results:

  • 29 patients with 33 ruptures were evaluated; 7 were lost to follow-up.
  • No significant differences in range of motion or muscle strength between injured and contralateral limbs.
  • Identified risk factors did not impact functional scores, satisfaction, or pain.
  • Patients with multiple injuries showed reduced muscle strength and circumference, but satisfaction levels were comparable.

Conclusions:

  • Surgical repair of quadriceps and patellar tendon ruptures can lead to comparable strength and range of motion between injured and uninjured legs.
  • Risk factors do not appear to negatively influence patient outcomes.
  • While multiple injuries may reduce muscle strength, they do not necessarily decrease patient satisfaction.