Chinese Journal of Tissue Engineering Research ›› 2013, Vol. 17 ›› Issue (9): 1605-1610.doi: 10.3969/j.issn.2095-4344.2013.09.013

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Absorbable screw internal fixation: Complications and prevention measures

Xu Ke-lin, Yin Qu-dong, Gu San-jun, Sun Zhen-zhong, Shou Kui-shui   

  1. Xu Ke-lin, Yin Qu-dong, Gu San-jun, Sun Zhen-zhong, Shou Kui-shui
  • Received:2012-07-25 Revised:2012-09-15 Online:2013-02-26 Published:2013-02-26
  • Contact: Yin Qu-dong, Chief physician, Department of orthopedics, Wuxi No.9 People’s Hospital, Wuxi 214062, Jiangsu Province, China yinqudong@sina.com
  • About author:Xu Ke-lin★, Master, Physician, Department of Orthopedics, Wuxi No.9 People’s Hospital, Wuxi 214062, Jiangsu Province, China yinqudong@sina.com

Abstract:

BACKGROUND: In some special parts of limbs, absorbable screws instead of metal screws have obtained good fixation effects, but, a few complications also appear. The causes and prevention measures of complications of absorbable screws have been reported less in literature.
OBJECTIVE: To analyze the incidence, causes and prevention measures of complications of absorbable screw internal fixation.
METHODS: A total of 113 cases treated with 236 absorbable screw or rod internal fixation were studied retrospectively. Among the 113 cases, limb fractures occurred in 92 cases and ligament reconstructions in 21 cases. Excepted for four cases of tibial shaft fractures, the rest cases of limb fractures were cancellous bone fractures near the joints.
RESULTS AND CONCLUSION: All the patients were followed-up for 12-48 months with an average of 20 months, the total incidence of complications was 10.6%.The fixation failure occurred in five cases (failure rate 4.4%), that was related with inappropriate choice of indications, osteoporosis, over-tapping and too early or excessive activity after operation. Among the five cases of fixation failure, displacement lighter in three cases and displacement significant in two cases. Local adverse reactions occurred in seven cases (6.2% incidence rate), that was mainly related with material composition, perforation of joint, too much outside exposure of screws. Among the seven cases of local adverse reactions, mild in two cases (1.8%) and severe in five cases (4.4%); early reactions in four cases (3.5%) and late phase reactions in three cases (2.7%). Complications of absorbable screws internal fixation are related with the material composition, poor choice of indication, failure to regulate the standard operation and too early or excessive activity after operation, as well as other factors.

Key words: bone and joint implants, orthopedic implants, absorbable screws, metal plate, internal fixation, humeral condylar fracture, radius bone head, olecranon, patella fractures, complication, fixation failure, adverse reaction

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