中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (3): 420-425.doi: 10.3969/j.issn.2095-4344.0041

• 骨与关节生物力学 bone and joint biomechanics • 上一篇    下一篇

近指间关节活动对伸肌腱Ⅰ区张力影响的解剖学测量

王朝东1,王建业1,王 玉2,先明博1   

  1. 1佳木斯大学附属第一医院,黑龙江省佳木斯市 154002;2解放军总医院,骨科再生医学北京市重点实验室,北京市 100853
  • 出版日期:2018-01-28 发布日期:2018-01-28
  • 通讯作者: 王建业,硕士,副主任医师,佳木斯大学附属第一医院,黑龙江省佳木斯市 154002
  • 作者简介:王朝东,男,1988年生,河南省郑州市人,汉族,佳木斯大学在读硕士,医师,主要从事骨外科的临床研究。
  • 基金资助:

    骨科再生医学北京市重点实验室2016年度科技创新基地培育与发展工程子专项项目(Z161100005016059)

Anatomic measurement regarding the effect of proximal interphalangeal joint motion on the tension of the zone I extensor tendon  

Wang Chao-dong1, Wang Jian-ye1, Wang Yu2, Xian Ming-bo1   

  1. 1First Affiliated Hospital, Jiamusi University,Jiamusi 154002, Heilongjiang Province, China; 2Key Laboratory of Regenerative Medicine of Department of Orthopedics of Beijing City, Chinese PLA General Hospital, Beijing 100853, China
  • Online:2018-01-28 Published:2018-01-28
  • Contact: Wang Jian-ye, Master, Associate chief physician, First Affiliated Hospital, Jiamusi University, Jiamusi 154002, Heilongjiang Province, China
  • About author:Wang Chao-dong, Studying for master’s degree, Physician, First Affiliated Hospital, Jiamusi University, Jiamusi 154002, Heilongjiang Province, China
  • Supported by:

    the Special Project for Cultivation and Development of Scientific and Technological Innovation Base of the Key Laboratory of Regenerative Medicine of Department of Orthopedics of Beijing City in 2016, No. Z161100005016059

摘要:

文章快速阅读:

文题释义:
近指间关节:近节指骨头和中节指骨底构成近指间关节,近指间关节屈曲90°-100°,关节周围皮肤在手指伸直时聚成皱褶,屈曲时则绷紧。近指间关节附近有一个中间腱(由指伸肌中间束与两侧骨间肌内侧束组成)抵止于中节指骨底背侧,有两个外侧腱(由骨间肌外侧束与蚓状肌腱纤维组成)经关节背外侧走向中节指背侧并靠拢。中间腱随着近指间关节屈曲向远心端移动使两外侧腱张力逐渐缩小处于松弛状态。
伸肌腱Ⅰ区:中节指骨头和远节指骨底构成远指间关节,伸肌腱Ⅰ区位于远指间关节区,此区有终腱抵止于末节指骨底背侧,皮肤很薄且连接紧密。可产生闭合性或开放性损伤,甲床手术亦可累及终腱。终腱损伤后可导致锤状指畸形,在临床上较常见,治疗方法多种多样,虽然大部分治疗方法达成一致,但是近指间关节的固定位置并未达成共识。
 
摘要
背景:目前锤状指的保守及手术治疗方法多种多样,虽然大部分治疗方法达成一致,但是近指间关节的固定位置并未达成共识。
目的:通过对标本伸肌腱解剖测量,探讨近指间关节活动对伸肌腱Ⅰ区张力的影响,寻找出伸肌腱Ⅰ区张力最小时近指间关节的固定位,为临床治疗锤状指选择最优固定位提供参照。
方法:取上肢标本示、中、环、小指各20指,分别测量各指在近指间关节处于伸直位、屈曲20°,40°,60°,80°,100°位时,远指间关节的最大被动屈曲角度。然后显露Ⅰ区伸肌腱,固定远指间关节于伸直位,横向切断伸肌腱末端,制作锤状指模型。克氏针垂直末节指骨基底部进针穿透指骨,记号笔平行克氏针于Ⅰ区伸肌腱上做标记,测量肌腱滑动距离。取近指间关节处于伸直位、屈曲20°,40°,60°,80°,100°位,分别测量伸肌腱断端间隙大小及肌腱的滑动距离。
结果与结论:①远指间关节的最大被动屈曲角度随近指间关节屈曲角度的增大而增大;②伸肌腱Ⅰ区两断端的距离随着近指间关节屈曲角度的增大而减小,伸肌腱Ⅰ区两断端近端向远端滑动的距离随着近指间关节屈曲角度的增大而增大。近指间关节处于伸直位时,Ⅰ区伸肌腱末端断端处间隙大小为(1.322 8±1.078 9)mm;当屈曲近指间关节至100°位时,近侧断端向远侧滑移,平均滑移距离为(1.540 5±0.690 7)mm;③结果提示,近指间关节处于伸直位伸肌腱Ⅰ区张力最大,伸肌腱Ⅰ区张力随屈曲近指间关节的角度增大而减小,近指间关节处于屈曲100°位时伸肌腱Ⅰ区张力为最小。

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程
ORCID: 0000-0002-5092-0812(王朝东)

关键词: 伸肌腱, 生物力学, 指间关节, 锤状指, 骨科植入物, 解剖学

Abstract:

BACKGROUND: Many conservative and surgical techniques for mallet finger have been described. Most of them have reached an agreement, but the fixation of the proximal interphalangeal joint has not reached a consensus.

OBJECTIVE: To discuss the effect of proximal interphalangeal joint motion on the tension of the zone I extensor tendon and to search the fixation position of proximal interphalangeal joint at the minimum tension of the zone I extensor tendon through measuring extensor tendon so as to provide reference for selecting optimal fixation position in the treatment of mallet finger.
METHODS: The maximal passive flexion angles of the distal interphalangeal joint of the index, middle, ring and little fingers were measured in 20 cadaver hands when the proximal interphalangeal joint flexed at 0°, 20°, 40°, 60°, 80° and 100°. An incision was made over the back of the distal interphalangeal joint to expose the zone I extensor tendon. The extensor tendon was incised laterally at the level of the distal interphalangeal joint with the distal interphalangeal joint fixed in extension position to make a mallet finger. A Kirschner wire was used to pierce through and perpendicular to the distal phalangeal basement as a sign. Paralleling to this sign, the zone I extensor tendon was marked and its relative distance to the sign was measured as the sliding distance of the extensor. The widest gap between the tendon edges and the tendon sliding distance were recorded, while the proximal interphalangeal joint was in extension and 20°, 40°, 60°, 80° and 100° flexion positions.
RESULTS AND CONCLUSION: (1) The maximal passive flexion angle of the distal interphalangeal joint increased with the proximal interphalangeal joint flexion increased. (2) The gap between the extensor tendon edges in zone I reduced when the angle of proximal interphalangeal joint increased. The proximal extensor tendon gliding distance increased, while the proximal interphalangeal joint flexion increased. The gap between the extensor tendon edges in zone I was (1.322 8±1.0788 9) mm when the proximal interphalangeal joint was in extension position. The proximal extensor tendon glided distally, when the proximal interphalangeal joint flexed to 100° with an average sliding distance of (1.540 5±0.690 70) mm. (3) The zone I extensor tendon has the maximal tension while the proximal interphalangeal joint is in extension position. The tension in the zone I extensor tendon reduced when the angle of proximal interphalangeal joint increased. The tension in the zone I extensor tendon was minimal when the proximal interphalangeal joint flexed to 100°. 

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Anatomy, Biomechanics, Muscle Tonus, Tissue Engineering

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