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Titolo:
RADIOFREQUENCY (ELECTROSURGICAL) ABLATION OF ARTICULAR-CARTILAGE - A STUDY IN SHEEP
Autore:
TURNER AS; TIPPETT JW; POWERS BE; DEWELL RD; MALLINCKRODT CH;
Indirizzi:
COLORADO STATE UNIV,DEPT CLIN SCI FT COLLINS CO 80523 COLORADO STATE UNIV,DEPT PATHOL FT COLLINS CO 80523 COLORADO STATE UNIV,DEPT STAT FT COLLINS CO 80523
Titolo Testata:
Arthroscopy
fascicolo: 6, volume: 14, anno: 1998,
pagine: 585 - 591
SICI:
0749-8063(1998)14:6<585:R(AOA->2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Keywords:
ARTICULAR CARTILAGE; ABRASION ARTHROPLASTY; KNEE JOINT; ARTHROSCOPY; ELECTROSURGICAL DESICCATION; ELECTROSURGICAL ABLATION; CARTILAGE REPAIR; HISTOLOGY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
8
Recensione:
Indirizzi per estratti:
Citazione:
A.S. Turner et al., "RADIOFREQUENCY (ELECTROSURGICAL) ABLATION OF ARTICULAR-CARTILAGE - A STUDY IN SHEEP", Arthroscopy, 14(6), 1998, pp. 585-591

Abstract

The objective of this study was to examine the effect of a bipolar ablation probe on experimentally roughened articular cartilage and compare it with the traditional mechanical shaving technique using the kneejoint of sheep. Twenty-eight skeletally mature ewes were divided randomly into two groups: one group was treated with a rotating shaving device and another group was treated using the bipolar ablation probe (Bipolar Arthroscopic Probe; Electroscope, Inc, Boulder, CO). Animals were killed at 0, 6, 12, and 24 weeks, and histological sections of the experimental limbs were compared with sections of the opposite limb using a modified Mankin scale. The following variables were used to determine scores: surface (0-6), cells (0-4), hypocellularity (0-3), matrix staining (transitional zone [0-4], radiate zone [0-4], and focal empty lacunae or hypereosinophilic cells (0-3). Differences in scores forall response variables were calculated as treated limb minus sham limb. Response variables were formed: score >0 recoded as 1 (favorable response treated better than sham), score of 0 recoded as 2 (neutral response no differences), and score <0 recoded as 3 (unfavorable responsetreated worse than sham). Bipolar ablative probe-treated limbs had 14.29% favorable responses and 35.71% favorable or neutral responses, whereas shave-treated limbs had 0% favorable and only 7.14% favorable orneutral responses. For all variables, bipolar ablative probe-treated limbs had more favorable responses. The less severe histological change in the bipolar ablative probe-treated joints compared with the shave-treated joints suggests that bipolar ablation of articular cartilage may be a better treatment for chondromalacia than the usual shaving methods of debridement. Further, there were no pathological changes in the subchondral bone.

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Documento generato il 12/08/20 alle ore 20:58:56