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The Journal of Bone & Joint Surgery British Volume
Vol. 87-B, Issue 10 | Pages 1361 - 1363
1 Oct 2005
Hardy JRW Chimutengwende-Gordon M Bakar I

We reviewed the records of 107 consecutive patients who had undergone surgery for disruption of the knee extensor mechanism to test whether an association existed between rupture of the quadriceps tendon and the presence of a patellar spur. The available standard pre-operative lateral radiographs were examined to see if a patellar spur was an indicator for rupture of the quadriceps tendon in this group of patients. Of the 107 patients, 12 underwent repair of a ruptured patellar tendon, 59 had an open reduction and internal fixation of a patellar fracture and 36 repair of a ruptured quadriceps tendon. In the 88 available lateral radiographs, patellar spurs were present significantly more commonly (p < 0.0005) in patients operated on for rupture of the quadriceps tendon (79%) than in patients with rupture of the patellar tendon (27%) or fracture of the patella (15%). In patients presenting with failure of the extensor mechanism of the knee in the presence of a patellar spur, rupture of the quadriceps tendon should be considered as a possible diagnosis.


Orthopaedic Proceedings
Vol. 85-B, Issue SUPP_II | Pages 100 - 100
1 Feb 2003
Blom AW Estela CM Heal J Bowker K MacGowan A Hardy JRW
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The passage of bacteria through surgical drapes is a potential cause of wound infection. Previous studies have shown that liquids and human albumin penetrate certain types of drapes12. We studied the passage of bacteria through seven different types of surgical drape and an operating tray. We also studied the effect of different wetting agents on the passage of bacteria through wet reusable woven drapes. Bacteria were grown on an overfilled whole horse blood agar plate. The plate was covered with the drape to be tested and a second agar plate was inverted and placed on the drape. After 30 minutes the second agar plate was removed, incubated and inspected for bacterial growth. The experiment was repeated removing the second plate at 60 minutes and then again at 90 minutes. The entire experiment was repeated for each drape and then for each wetting agent.

Bacteria easily penetrated all the woven reusable fabrics within 30 minutes. The disposable non-woven drapes proved to be impermeable up to 90 minutes, as did the operating tray.

Chlorhexidine and Povidone-Iodine were demonstrated to slow, but not stop the passage of bacteria through reusable woven drapes. Normal saline and human blood accelerated the passage of bacteria through reusable woven drapes. We recommend the use of non-woven disposable drapes or woven drapes with an impermeable operating tray, in all surgical cases.


The Journal of Bone & Joint Surgery British Volume
Vol. 78-B, Issue 3 | Pages 510 - 510
1 May 1996
HARDY JRW GREGG PJ WOOD