reconstruction

Quadriceps Tendon Rupture

Epidemiology

 

Usually occurs in patients over 60

- due to decreased vascularity & collagen weakness

 

Younger patient on steroids / growth hormone

 

Occasionally occurs in young athlete with excessive contracture

 

Aetiology

 

Often preceded by quadriceps tendinosis

 

Patella Tendon Rupture

Epidemiology

 

Usually occurs in young people

- often previous history of tendonitis ± steroid injections

 

Location

 

Usually at level of inferior pole of patella

- less common at tibial tubercle

- mid-substance ruptures rare

 

Clinical

 

Severe pain

Palpable defect

Extensor deficit / unable to SLR

 

Xray

 

Patella alta / high riding patella

 

Chronic PLC Management

Issues

 

Limb alignment

 

Risk that late posterolateral corner reconstruction will fail in the setting of the varus knee

- varus knee alignment and varus thrust in stance phase

- consider osteotomy first in this setting

 

Results

 

Posterolateral Corner Reconstruction

 

Moulton et al. Am J Sports Med 2016

- systematic review of PCL reconstruction for chronic injuries

- 450 patients