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ABSTRACT: PURPOSE: To evaluate the effect of combined local anaesthetic and opioid in post-operative analgesia, the effect of intra-articular injection of local anaesthetic (ropivacaine), opioid (sufentanil) and combination of these two (ropivacaine combined with sufentanil) after the single-bundle anterior cruciate ligament reconstruction were compared. METHODS: In a prospective randomized double-blind design, 80 patients who underwent isolated anterior cruciate ligament reconstruction under epidural analgesia were randomly allocated to 4 groups, group A (n = 20) received 30 mL of 0.9 % saline as the control group, group B (n = 20) received 10 mg ropivacaine and 2 μg sufentanil in 30 mL 0.9 % saline, group C (n = 20) received 10 mg ropivacaine in 30 mL 0.9 % saline, group D (n = 20) received 2 μg sufentanil in 30 mL 0.9 % saline at the end of the operation. Pain was assessed by use of a 100-mm visual analogue scale (VAS) which was evaluated at 6 and 24 h post-operation. The pain VAS score in active straight leg raising exercise, sleep quality and the status of the administered supplementary analgesia drugs during the first 24 h were also collected. RESULTS: Pain scores of each of the three experiment groups were significantly lower than the control group in every aspect. Group B (ropivacaine with sufentanil) had significant lower pain score than group C (ropivacaine) and group D (sufentanil) both at 6 and 24 h after the operation. Patients in group B, C or D showed significant better sleep qualities than group A. Significantly more patients in group A received supplementary analgesia than group B, C or D. In group B, no patient needed to receive intramuscular dolantin as supplementary analgesia. CONCLUSIONS: Intra-articular injection of opioid (sufentanil), local anaesthetic (ropivacaine) or combination of these two kinds of agents could significantly reduce the pain following the reconstruction of anterior cruciate ligament. The combined intra-articular injection of opioid and local anaesthetic provided better analgesia effect than using sufentanil or ropivacaine alone. LEVEL OF EVIDENCE: Randomized controlled trial, Level I.
Knee Surgery Sports Traumatology Arthroscopy 12/2012; · 2.21 Impact Factor
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ABSTRACT: In the title complex, [Ni(C₃₆H₂₆Cl₄N₄O₂)]·C₃H₆O, two 2,4-dichloro-benzoyl groups are grafted onto the methine groups of the Ni(II) complex Ni(tmtaa) (H₂tmtaa = 5,7,12,14-tetra-methyl-4,11-dihydro-dibenzo[b,i][1,4,8,11]tetra-aza-cyclo-tetra-decine). The complex has the shape of a saddle. The Ni atom is tetra-coordinated by the four N atoms of the macrocycle, forming a slightly tetra-hedrally distorted square-planar geometry. The metal is displaced by 0.0101 (8) Å from the N₄ mean plane. The aromatic rings of the 2,4-dichloro-benzoyl groups form dihedral angles of 87.1 (2) and 82.1 (2)° with the N₄ mean plane.
Acta Crystallographica Section E Structure Reports Online 07/2012; 68(Pt 7):m871. · 0.35 Impact Factor
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ABSTRACT: In the title mol-ecule, C(11)H(6)F(2)N(2)O(2), the benzene and pyridine rings form a dihedral angle of 32.57 (6)°. The nitro group is tilted with respect to the pyridine ring by 12.26 (9)°. An intra-molecular C-H⋯F hydrogen bond is present. In the crystal, mol-ecules inter-act through π-π stacking inter-actions [centroid-centroid distances = 3.7457 (14) Å], forming columnar arrangements along the b axis. The crystal packing is further enforced by inter-molecular C-H⋯O and C-H⋯N hydrogen bonds.
Acta Crystallographica Section E Structure Reports Online 07/2012; 68(Pt 7):o2001. · 0.35 Impact Factor
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ABSTRACT: A new non-planar saddle shaped macrocyclic ligand 4,11-dihydro-5,7,12,14-tetramethyldibenzo[b,i][1,4,8,11]tetraazacyclotetradecine (H2tmtaa) containing a six-coordinate germanium(IV) complex, Ge(tmtaa)(OOCH)2 (1), in which two axial formate ligands are in the trans positions, has been synthesized. IR, UV, mass, NMR spectroscopic study and elemental analysis have been performed to characterize
the complex. The single crystal X-ray diffraction analysis shows that in the solid state, molecules of 1 are connected through intermolecular hydrogen-bond weak interactions to form a one-dimensional supramolecular network. The
temperature dependence of the electrical conductivity data (240–300K) for 1 indicates a region of falling dσ/d(1/T), suggesting “semiconductor-like” charge transport in the stacking direction. The
conductivity of 1 at room temperature is 6.1×10−8S/cm.
KeywordsNon-planar macrocyclic ligand–Germanium(IV) complex–Single crystal–Hydrogen bond–1-D supramolecular network–Electrical conductivity
Journal of Inorganic and Organometallic Polymers and Materials 05/2012; 21(1):91-96. · 1.45 Impact Factor
