Hegde Atmananda S, Rai Deepak K, Kannampilly Antony J
Associate Professor, Department of Orthopaedics, Yenepoya Medical College , Mangalore, India .
Professor, Department of Orthopaedics, Yenepoya Medical College , Mangalore, India .
J Clin Diagn Res. 2014 Apr;8(4):LC01-3. doi: 10.7860/JCDR/2014/8834.4237. Epub 2014 Apr 15.
Anterior Cruciate Ligament (ACL) is as one of the most frequently injured ligaments in the modern contact sports scenario. Graft fixations can be achieved during anterior cruciate ligament (ACL) reconstructions by using either bioabsorbable screws or metal screws. The objective of this study was to compare the functional outcomes after bioabsorbable and metallic interference screw fixations in arthroscopic anterior cruciate ligament reconstructions done by using hamstring grafts.
This was a prospective, randomized study. Patients in Group 1 received bioabsorbable interference screws and patients in Group 2 received metallic interference screws. Arthroscopic assisted, anterior cruciate ligament reconstructions with the use of hamstring grafts which were fixed proximally with endobuttons and distally with bioabsorbable or metallic interference screws, were undertaken. Progress in functional outcomes was assessed by using Mann Whitney U- test. Functional outcomes in the two groups were compared by using independent t-test.
In each group, there were statistically significant improvements in functional outcomes over successive follow-ups, which were seen on basis on Mann-Whitney U-test. The comparison of functional outcomes between the two groups, done by using independent t-test, showed no statistically significant differences between the two groups at 3 months, 6 months and 1 year of follow-up. p-value <0.05 was considered to be significant in our study.
In our prospective study of comparison of functional outcomes between bioabsorbable and metallic interference screws in arthroscopic anterior cruciate ligament reconstuctions, which were evaluated by using Tegner activity scale and Lysholm knee scoring scale for a period of 1 year, no statistically significant difference was found. However, further authentication is required by doing long term studies.
前交叉韧带（ACL）是现代接触性运动场景中最常受伤的韧带之一。在前交叉韧带（ACL）重建过程中，可以使用生物可吸收螺钉或金属螺钉来实现移植物固定。本研究的目的是比较在使用腘绳肌腱移植物进行关节镜下前交叉韧带重建时，生物可吸收螺钉和金属干涉螺钉固定后的功能结果。
这是一项前瞻性随机研究。第1组患者接受生物可吸收干涉螺钉，第2组患者接受金属干涉螺钉。采用关节镜辅助，使用腘绳肌腱移植物进行前交叉韧带重建，近端用纽扣式固定，远端用生物可吸收或金属干涉螺钉固定。使用曼-惠特尼U检验评估功能结果的进展。两组的功能结果采用独立t检验进行比较。
根据曼-惠特尼U检验，每组在连续随访中功能结果均有统计学意义的改善。使用独立t检验对两组功能结果进行比较，发现在随访3个月、6个月和1年时两组之间无统计学显著差异。在我们的研究中，p值<0.05被认为具有显著性。
在我们对关节镜下前交叉韧带重建中生物可吸收螺钉和金属干涉螺钉功能结果比较的前瞻性研究中，使用Tegner活动量表和Lysholm膝关节评分量表进行为期1年的评估，未发现统计学显著差异。然而，需要通过长期研究进行进一步验证。
