Abstract
The purpose of this study was to evaluate effectiveness and safety of a relatively
new technique of open reduction and internal fixation of displaced transverse patellar
fractures with tension band wiring (TBW) through parallel cannulated compression screws.
A total of 30 patients with displaced transverse patellar fracture were enrolled in
this prospective study. Of the 30 patients, 20 patients had trauma due to fall, 5
due to road traffic accident, 2 due to fall of heavy object on the knee, 2 due to
forced flexion of knee, and 1 had fracture due to being beaten. All 30 patients were
treated with vertical skin exposure, fracture open reduction, and internal fixation
by anterior TBW through 4.0 mm cannulated screws. The postoperative rehabilitation
protocol was standardized. The patients were followed postsurgery to evaluate time
required for radiographic bone union, knee joint range of motion (ROM), loss of fracture
reduction, material failure, and the overall functional result of knee using Bostman
scoring. All the fractures healed radiologically, at an average time of 10.7 weeks
(range, 8–12 weeks). The average ROM arc was 129.7 degrees (range, 115–140 degrees).
No patient had loss of fracture reduction, implant migration, or material failure.
The average Bostman score was 28.6 out of 30. Anterior TBW through cannulated screws
for displaced transverse fractures is safe and effective alternative treatment. Good
functional results and recovery can be expected.
Keywords
patellar fracture - cannulated screw - tension band wiring - knee
