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The generalized Hooke's Law is a broadened version of Hooke's Law, which extends to all types of stress and in every direction. Consider an isotropic material shaped into a cube subjected to multiaxial loading. In this scenario, normal stresses are exerted along the three coordinate axes. As a result of these stresses, the cubic shape deforms into a rectangular parallelepiped. Despite this deformation, the new shape maintains equal sides, and there is a normal strain in the direction of the...
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Hook plating in patella fractures.

Jae Hoon Jang1, Seung Joon Rhee1, Ji Wan Kim2

  • 1Department of Orthopedic Surgery, Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea.

Injury
|August 26, 2019
PubMed
Summary
This summary is machine-generated.

Hook plating offers a viable alternative for complex patella fractures, demonstrating excellent bone union and functional recovery. This method overcomes limitations of traditional tension band wiring in comminuted or marginal patella fractures.

Keywords:
ComminutionHook platingMarginal fracturePatellaPatella fracturesTension band wiring

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Area of Science:

  • Orthopedic surgery
  • Traumatology
  • Biomedical engineering

Background:

  • Tension band wiring is the standard for patella fractures but has limitations.
  • Marginal, comminuted, and osteoporotic patella fractures pose treatment challenges.
  • Hook plating presents a potential alternative for complex patella fractures.

Purpose of the Study:

  • To evaluate the radiographic and clinical outcomes of hook plating for patella fractures.
  • To assess the efficacy of hook plating in cases unsuitable for traditional methods.
  • To determine the success rate of hook plating in achieving bone union and functional recovery.

Main Methods:

  • Retrospective review of 30 patients with patella fractures treated with hook plating.
  • Analysis of fracture classifications (AO/OTA), surgical details, and postoperative outcomes.
  • Radiographic assessment (fracture gap, union time) and clinical evaluation (complications, range of motion, Lysholm score).

Main Results:

  • Successful bone union was achieved in all cases without additional intervention.
  • Average fracture gap was 0.4 mm, and average union time was 11.6 weeks.
  • High functional outcomes with an average Lysholm score of 89.5 and excellent/good results in 27 patients.

Conclusions:

  • Hook plating is effective for treating complex patella fractures, including marginal and comminuted types.
  • This technique provides good bone union and restores knee function.
  • Hook plating overcomes the limitations of tension band wiring in specific patella fracture patterns.