The value of subtalar arthroscopy in the management of intra-articular calcaneus fractures

被引:199
作者
Rammelt, S [1 ]
Gavlik, JM [1 ]
Barthel, S [1 ]
Zwipp, H [1 ]
机构
[1] Tech Univ Dresden, Klin & Poliklin Unfall & Wiederherstellungschirur, Klinikum Carl Gustav Carus, Dept Trauma & Reconstruct Surg, D-01307 Dresden, Germany
关键词
calcaneus fracture; subtalar arthroscopy; open reduction; percutaneous osteosynthesis;
D O I
10.1177/107110070202301004
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
A wealth of clinical and experimental data suggests, that anatomical restoration of the posterior calcaneal facet is a major predictor of outcome after intra-articular calcaneus fractures. The value of subtalar arthroscopy was examined in three clinical study groups (I-III) Materials and Methods: (I) The subtalar joint was inspected arthroscopically in 28 patients during hardware removal one year after open reduction and internal fixation (ORIF). This procedure was accompanied by subtalar arthrolysis in all cases. (II) Open subtalar arthroscopy was performed to evaluate the quality of reduction after ORIF of intra-articular calcaneus fractures in 59 cases. Arthroscopy was performed after seemingly exact reconstruction of the posterior facet as judged visually and fluoroscopically. (III) Arthroscopically assisted percutaneous reduction and screw fixation (PRSF) was performed in 18 patients with Sanders 11 fractures. Reduction was achieved with a Schanz screw introduced percutaneously into the tuberosity fragment and controlled fluoroscopically, while fine corrections were made under arthroscopic guidance. Results: (1) Clinical results after ORIF of intra-artidular calcaneus fractures were highly correlated to the degree of residual incongruities and chondromalacia of the posterior facet as seen arthroscopically during hardware removal (P<0.01). (II) In 13 of 59 cases (22.0%) during ORIF despite seemingly accurate reduction, steps between 1-2 mm were detected arthroscopically in the posterior calcaneal facet and reduction was repeated subsequently in these cases. (III) Fifteen patients who underwent arthroscopically guided PRSF were re-evaluated after a minimum of one year with excellent clinical results (94.1 pts. with the AOFAS scales). No wound complications were seen. Conclusions: Subtalar arthroscopy provides a most precise and thorough view of the posterior facet of the calcaneus both in assessing the quality of initial reduction as well as evaluation during hardware removal after intra-articular calcaneus fractures. It is more precise than intra-operative fluoroscopy and less time consuming than standard Broden views during surgery. The use of arthroscopy allows anatomical percutaneous reduction and screw fixation of Sanders 11 fractures. It therefore provides a useful additional tool in treating intra-articular calcaneus fractures.
引用
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页码:906 / 916
页数:11
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