PURPOSE:Intrathecal morphine and psoas compartment block represent two accepted techniques to provide postoperative analgesia after hip arthroplasty. We designed a prospective, randomized, single-blinded study to compare these two techniques. METHODS:Patients scheduled for primary hip arthroplasty under general anesthesia were randomized to receive either an intrathecal administration of 0.1 mg morphine (Group I, n = 27) or a psoas compartment block with ropivacaine 0.475% 25 mL (Group II, n = 26). Pain scores, morphine consumption, associated side-effects were assessed for 48 hr postoperatively. In addition, patient's acceptance and satisfaction of the postoperative analgesic technique were also recorded. RESULTS: During the first 24 hr, pain scores (3.3 +/- 9.6 mm vs 22.8 +/- 27.1 at H+6, 3.3 +/- 8.3 mm vs 25 +/- 26.7 mm at H+12, 7 +/- 14.9 mm vs 21.9 +/- 29 mm at H+18) and morphine consumption (0.56 +/- 2.12 mg vs 9.42 +/- 10.13 mg) were lower in Group I than in Group II. Urinary retention was the more frequent side-effect occurring in 37% of cases in Group I vs 11.5% in Group II (P < 0.05). No major complication occurred. Despite better analgesia provided by the use of intrathecal morphine, there was no difference in the satisfaction scores between groups. CONCLUSION: 0.1 mg intrathecal morphine administration provides better postoperative analgesia than single-shot psoas compartment block after primary hip arthroplasty.
RCT Entities:
PURPOSE: Intrathecal morphine and psoas compartment block represent two accepted techniques to provide postoperative analgesia after hip arthroplasty. We designed a prospective, randomized, single-blinded study to compare these two techniques. METHODS:Patients scheduled for primary hip arthroplasty under general anesthesia were randomized to receive either an intrathecal administration of 0.1 mg morphine (Group I, n = 27) or a psoas compartment block with ropivacaine 0.475% 25 mL (Group II, n = 26). Pain scores, morphine consumption, associated side-effects were assessed for 48 hr postoperatively. In addition, patient's acceptance and satisfaction of the postoperative analgesic technique were also recorded. RESULTS: During the first 24 hr, pain scores (3.3 +/- 9.6 mm vs 22.8 +/- 27.1 at H+6, 3.3 +/- 8.3 mm vs 25 +/- 26.7 mm at H+12, 7 +/- 14.9 mm vs 21.9 +/- 29 mm at H+18) and morphine consumption (0.56 +/- 2.12 mg vs 9.42 +/- 10.13 mg) were lower in Group I than in Group II. Urinary retention was the more frequent side-effect occurring in 37% of cases in Group I vs 11.5% in Group II (P < 0.05). No major complication occurred. Despite better analgesia provided by the use of intrathecal morphine, there was no difference in the satisfaction scores between groups. CONCLUSION: 0.1 mg intrathecal morphine administration provides better postoperative analgesia than single-shot psoas compartment block after primary hip arthroplasty.
Authors: Terence P Murphy; Damien P Byrne; Paul Curtin; Joseph F Baker; Kevin J Mulhall Journal: Clin Orthop Relat Res Date: 2011-09-30 Impact factor: 4.176
Authors: José H Jiménez-Almonte; Cody C Wyles; Saranya P Wyles; German A Norambuena-Morales; Pedro J Báez; Mohammad H Murad; Rafael J Sierra Journal: Clin Orthop Relat Res Date: 2015-11-16 Impact factor: 4.176
Authors: Donald E G Griesdale; Jeremy Neufeld; Dale Dhillon; Jennifer Joo; Supna Sandhu; Frank Swinton; Peter T Choi Journal: Can J Anaesth Date: 2011-10-12 Impact factor: 5.063