BACKGROUND AND PURPOSE: Incorporation of fresh-frozen allograft bone and safety aspects associated with this procedure can be improved by removing blood and lipids from the bone. We investigated in a quantitative manner how efficient pulse lavage might be for removal of adipose tissue from morselized allograft bone. METHODS: Depending on the study, the washing was performed with an average of 0.8 L or 1.6 L of sterile saline at room temperature. Fat content of the morselized bone samples was determined using hexane elution. The efficiency of pulse lavage alone was compared with that after an additional wash in 12 L of warm water (55 degrees C). Unprocessed controls were also included for comparison. RESULTS: Pulse lavage with 0.8 L saline alone removed 80% of the fat from the bone, whereas 95% of the fat was removed when washing was performed with 1.6 L of saline. The cleansing efficacy was improved further when an additional wash with warm water was used. INTERPRETATION: Our results indicate that pulse-lavage washing alone at room temperature is an effective method for defatting of morselized allograft bone, but an additional wash with warm water improves the cleansing efficiency. Pulse lavage is easily available and simple to use in the operating theater.
BACKGROUND AND PURPOSE: Incorporation of fresh-frozen allograft bone and safety aspects associated with this procedure can be improved by removing blood and lipids from the bone. We investigated in a quantitative manner how efficient pulse lavage might be for removal of adipose tissue from morselized allograft bone. METHODS: Depending on the study, the washing was performed with an average of 0.8 L or 1.6 L of sterile saline at room temperature. Fat content of the morselized bone samples was determined using hexane elution. The efficiency of pulse lavage alone was compared with that after an additional wash in 12 L of warm water (55 degrees C). Unprocessed controls were also included for comparison. RESULTS: Pulse lavage with 0.8 L saline alone removed 80% of the fat from the bone, whereas 95% of the fat was removed when washing was performed with 1.6 L of saline. The cleansing efficacy was improved further when an additional wash with warm water was used. INTERPRETATION: Our results indicate that pulse-lavage washing alone at room temperature is an effective method for defatting of morselized allograft bone, but an additional wash with warm water improves the cleansing efficiency. Pulse lavage is easily available and simple to use in the operating theater.
Authors: Yang Sun; Weibo Jiang; Esther Cory; Jason P Caffrey; Felix H Hsu; Albert C Chen; Jincheng Wang; Robert L Sah; William D Bugbee Journal: PLoS One Date: 2017-05-02 Impact factor: 3.240
Authors: Simon Görtz; Suzanne M Tabbaa; Deryk G Jones; John D Polousky; Dennis C Crawford; William D Bugbee; Brian J Cole; Jack Farr; James E Fleischli; Alan Getgood; Andreas H Gomoll; Allan E Gross; Aaron J Krych; Christian Lattermann; Bert R Mandelbaum; Peter R Mandt; Raffy Mirzayan; Timothy S Mologne; Matthew T Provencher; Scott A Rodeo; Oleg Safir; Eric D Strauss; Christopher J Wahl; Riley J Williams; Adam B Yanke Journal: Orthop J Sports Med Date: 2021-03-23