Schepers Tim, Van der Stoep Arjan, Van der Avert Hans, Van Lieshout Esther M M, Patka Peter
Erasmus MC, University Medical Center Rotterdam, Department of General Surgery-Traumatology, 3000 CA, Rotterdam, The Netherlands.
Foot Ankle Int. 2008 Feb;29(2):128-35. doi: 10.3113/FAI.2008.0128.
Clinical results for the treatment of displaced intra-articular calcaneal fractures are mainly expressed using disease-specific outcome scores, physical examination and radiographs. We hypothesized that plantar pressure and foot position analysis is a valuable tool in assessing foot function in patients with a unilateral displaced intra-articular calcaneal fracture treated percutaneously.
With a followup of at least one year, 21 patients with a unilateral displaced intra-articular calcaneal fracture treated percutaneously participated in the study. The pedobarographic measurements in the injured foot were compared with the contralateral control foot. Correlations between the ratios (injured/control) of plantar pressure and foot position variables and outcome scores, the physical exam items ratios, the fracture classification, and the radiological parameters were calculated.
Statistically significant differences between the injured and the control foot were found for the weight distribution (p = 0.002), total contact time (p < 0.001), and the maximum pressure under the first metatarsal (p = 0.02) after a median followup of 18 months. Of all correlations calculated, only the heel time ratio correlated significantly with the heel width ratio (p = 0.004).
Significant differences in plantar pressure distribution between the injured and uninjured foot were found, indicating that plantar pressure analysis and foot position analysis is an objective test to assess deviations in foot function. Plantar pressure data revealed limited correlation with outcome scores. Therefore, plantar pressure analysis should not be used instead of but in addition to established outcome scores.
移位的关节内跟骨骨折的治疗临床结果主要通过特定疾病的结果评分、体格检查和X线片来表示。我们推测足底压力和足部位置分析是评估经皮治疗的单侧移位关节内跟骨骨折患者足部功能的有价值工具。
对21例经皮治疗的单侧移位关节内跟骨骨折患者进行了至少一年的随访研究。将受伤足的足底压力测量结果与对侧对照足进行比较。计算了足底压力和足部位置变量的比值（受伤/对照）与结果评分、体格检查项目比值、骨折分类及放射学参数之间的相关性。
在中位随访18个月后，发现受伤足与对照足在重量分布（p = 0.002）、总接触时间（p < 0.001）以及第一跖骨下的最大压力（p = 0.02）方面存在统计学显著差异。在所有计算的相关性中，只有足跟时间比值与足跟宽度比值显著相关（p = 0.004）。
发现受伤足与未受伤足之间足底压力分布存在显著差异，表明足底压力分析和足部位置分析是评估足部功能偏差的客观测试。足底压力数据与结果评分的相关性有限。因此，足底压力分析不应替代既定的结果评分，而应作为其补充。
