OBJECTIVETo evaluate anterior cervical plating in short-level anterior discectomy and autograft bone fusion.

METHODSEighty-one patients who underwent one- and two-level anterior cervical discectomy and fusion were randomized to 2 groups, with or without instrumentation. Among them, 55 patients were followed up. The mean follow-up time was (22 +/- 7) months. Fusion rate, disc height and cervical lordotic alignment were assessed by radiographs.

RESULTSThe improving rates were 68% in non-instrumented group and 58% in instrumented group, respectively (P > 0.05). The fusion rate was 93% in the non-instrumented group and 100% in the later one. The disc height was decreased (0.7 +/- 1.0) mm in the former group and increased (1.2 +/- 0.6) mm in the later one (P < 0.01). Although the postoperative cervical lordotic alignment was maintained better in instrumented group, the difference was not significant.

CONCLUSIONAnterior cervical plating can make good influence on the result of anterior cervical discectomy and fusion in some degree.

Adult ; Aged ; Bone Transplantation ; Cervical Vertebrae ; surgery ; Diskectomy ; instrumentation ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Prospective Studies ; Spinal Diseases ; surgery ; Spinal Fusion ; methods ; Transplantation, Autologous ; Treatment Outcome

AIMTo investigate the water-soluble phenolic glycosides from the whole plant of Bulbophyllum odoratissimum.

METHODSColumn chromatography techniques were used to isolate the chemical constituents, physico-chemical constants and spectroscopic analysis were employed for structural elucidation.

RESULTSBulbophyllinoside (1), a new phenolic glycoside and three known compounds were isolated from the whole plant of Bulbophyllum odoratissimum Lindl. Their structures were determined as 3-hydroxyphenethyl alcohol 4-O-( 6'-O-beta-apiofuranosyl) -beta-D-glucopyranoside (1), 3-methoxyphenethyl alcohol 4-O-beta-D-glucopynanoside (2), 3, 5-dimethoxyphenethyl alcohol 4-O-alpha-D-glucopynanoside (3) and syringin (4).

CONCLUSIONBulbophyllinoside (1) is a new compound.

Glucosides ; chemistry ; isolation & purification ; Glycosides ; chemistry ; isolation & purification ; Molecular Structure ; Orchidaceae ; chemistry ; Phenols ; chemistry ; isolation & purification ; Phenylpropionates ; chemistry ; isolation & purification ; Solubility ; Water ; chemistry