Pub Date : 2019-12-15DOI: 10.3760/CMA.J.ISSN.1671-7600.2019.12.006
Faqi Cao, Hang Xue, Wu Zhou, T. Xia, Mengfei Liu, Zengwu Shao, Yanjiu Han, Jing Liu
Objective To evaluate Herbert screwing directly via the anterior approach for femoral head fractures of Pipkin type Ⅱ in the youth. Methods A retrospective analysis was conducted of the 16 patients who had been treated at Department of Orthopaedics, Union Hospital, Tongji Medical College for femoral head fractures of Pipkin type Ⅱ from August 2016 to June 2018. They were 9 men and 7 women, aged from 18 to 45 years (mean, 25.6 years). Of them, 10 cases who had been complicated with posterior dis-location of the hip received emergency hip reduction(<6 h) before surgical fixation. All the patients underwent Herbert screwing directly via the anterior approach. Their incision length, operation time, intraoperative blood loss, hospitalization time, Harris hip scores, therapeutic efficacy and complications were recorded. Results In this series, the incision length averaged 10.4 cm, operation time 45.6 min, intraoperative blood loss 46.5 mL, and hospitalization time 4.0 d. All the 16 patients were followed up for 11 to 15 months (average, 12.7 months). Their Harris hip scores at preoperation, 3, 6 and 9 months postoperation and at the last follow-up were, respectively, 14.3±2.2, 64.8±2.4, 81.1±4.9, 88.1±4.6 and 91.9±3.4 points, showing a significant difference between any 2 time points (P<0.05). The therapeutic efficacy at the last follow-up by the Thompson-Epstein clinical evaluation was assessed as excellent in 9 cases, as good in 6 and as fair in one. No osteonecrosis of the femoral head or heterotopic ossification was observed by follow-up. Conclusion For young patients with femoral head fracture of Pipkin type Ⅱ, Herbert screwing directly via the anterior approach provides easy exposure and manipulation, does not aggravate the blood supply to the femoral head, decreases incidence of heterotopic ossification, and leads to shorter operation time and quick functional recovery of the hip. Key words: Femoral head fractures; Fracture fixation, internal; Surgical procedures, minimally invasive; Surgical approach
{"title":"Herbert screwing directly via the anterior approach for femoral head fractures of Pipkin type II in the youth","authors":"Faqi Cao, Hang Xue, Wu Zhou, T. Xia, Mengfei Liu, Zengwu Shao, Yanjiu Han, Jing Liu","doi":"10.3760/CMA.J.ISSN.1671-7600.2019.12.006","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1671-7600.2019.12.006","url":null,"abstract":"Objective \u0000To evaluate Herbert screwing directly via the anterior approach for femoral head fractures of Pipkin type Ⅱ in the youth. \u0000 \u0000 \u0000Methods \u0000A retrospective analysis was conducted of the 16 patients who had been treated at Department of Orthopaedics, Union Hospital, Tongji Medical College for femoral head fractures of Pipkin type Ⅱ from August 2016 to June 2018. They were 9 men and 7 women, aged from 18 to 45 years (mean, 25.6 years). Of them, 10 cases who had been complicated with posterior dis-location of the hip received emergency hip reduction(<6 h) before surgical fixation. All the patients underwent Herbert screwing directly via the anterior approach. Their incision length, operation time, intraoperative blood loss, hospitalization time, Harris hip scores, therapeutic efficacy and complications were recorded. \u0000 \u0000 \u0000Results \u0000In this series, the incision length averaged 10.4 cm, operation time 45.6 min, intraoperative blood loss 46.5 mL, and hospitalization time 4.0 d. All the 16 patients were followed up for 11 to 15 months (average, 12.7 months). Their Harris hip scores at preoperation, 3, 6 and 9 months postoperation and at the last follow-up were, respectively, 14.3±2.2, 64.8±2.4, 81.1±4.9, 88.1±4.6 and 91.9±3.4 points, showing a significant difference between any 2 time points (P<0.05). The therapeutic efficacy at the last follow-up by the Thompson-Epstein clinical evaluation was assessed as excellent in 9 cases, as good in 6 and as fair in one. No osteonecrosis of the femoral head or heterotopic ossification was observed by follow-up. \u0000 \u0000 \u0000Conclusion \u0000For young patients with femoral head fracture of Pipkin type Ⅱ, Herbert screwing directly via the anterior approach provides easy exposure and manipulation, does not aggravate the blood supply to the femoral head, decreases incidence of heterotopic ossification, and leads to shorter operation time and quick functional recovery of the hip. \u0000 \u0000 \u0000Key words: \u0000Femoral head fractures; Fracture fixation, internal; Surgical procedures, minimally invasive; Surgical approach","PeriodicalId":10145,"journal":{"name":"Chinese Journal of Orthopaedic Trauma","volume":"21 1","pages":"1047-1051"},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43990319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-15DOI: 10.3760/CMA.J.ISSN.1671-7600.2019.12.011
Qiang Xu, Xiaogang Wang, Y. Liu, Xiaoyuan Shi, Peng Xiao, Wan-wei Cao, Xingyu Chen, Guo-zhi Yang
Objective To explore the cross classification of tibial plateau fractures combined with avulsion fracture of medial femoral condyle. Methods The 16 patients were retrospectively analysed as an observation group who had been treated at Department of Lower Limbs, Sichuan Orthopaedic Hospital for tibial plateau fracture and avulsion fracture of the medial condyle of the same femur from January 2015 to December 2018. They were 9 males and 7 females, aged from 27 to 78 years (average, 51.5 years). By the Schatzker classification, there were 2 cases of type Ⅰ, 8 cases of type Ⅱ, 3 cases of type Ⅲ and one case of type Ⅳ; by the cross classification, there were 10 cases of type Ⅰe, one case of type Ⅱe and 2 cases of type Ⅲe and 3 cases of type Ⅰv. The 332 patients were included as a control group who had been treated at the same department for simple tibial plateau fracture from January 2010 to December 2015. The imaging data of the 2 groups were compared to find out the charateristics of cross type distribution; the widened distance of the lateral tibial plateau, collapse depth of the tibial plateau, separation of avulsion fracture of medial femoral condyle, maximum clearance of the medial knee and eversion angle of the tibial plateau were investigated in the patients with cross types e and Ⅰv in the observation group. Results In the observation group, the widened distance of the lateral tibial plateau averaged 7.18 mm, the collapse depth of the tibial plateau 8.74 mm, the separation of avulsion fracture of medial femoral condyle 3.44 mm, the maximum clearance of the medial knee 7.77 mm, and the eversion angle of the tibial plateau 87.03°. There was a significant difference in the cross type distribution of tibial plateau fractures between the 2 groups (P=0.002). In the observation group, the average widened distance of the lateral tibial platea for the 13 type e patients (8.49±4.26 mm)was significantly larger than that for the 3 type Ⅰv patients (1.51±2.11 mm) (t=2.706, P=0.017). Conclusion The cross classification of tibial plateau fractures with avulsion fracture of mediall condyle of the same femur may result mainly in types e and type Ⅰv. The widened distance of lateral tibial plateau helps distinction between types e and type Ⅰv. Key words: Tibial fractures; Femoral fractures; Classification; Radiology
{"title":"An imaging study of tibial plateau fractures combined with avulsion fracture of medial femoral condyle","authors":"Qiang Xu, Xiaogang Wang, Y. Liu, Xiaoyuan Shi, Peng Xiao, Wan-wei Cao, Xingyu Chen, Guo-zhi Yang","doi":"10.3760/CMA.J.ISSN.1671-7600.2019.12.011","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1671-7600.2019.12.011","url":null,"abstract":"Objective \u0000To explore the cross classification of tibial plateau fractures combined with avulsion fracture of medial femoral condyle. \u0000 \u0000 \u0000Methods \u0000The 16 patients were retrospectively analysed as an observation group who had been treated at Department of Lower Limbs, Sichuan Orthopaedic Hospital for tibial plateau fracture and avulsion fracture of the medial condyle of the same femur from January 2015 to December 2018. They were 9 males and 7 females, aged from 27 to 78 years (average, 51.5 years). By the Schatzker classification, there were 2 cases of type Ⅰ, 8 cases of type Ⅱ, 3 cases of type Ⅲ and one case of type Ⅳ; by the cross classification, there were 10 cases of type Ⅰe, one case of type Ⅱe and 2 cases of type Ⅲe and 3 cases of type Ⅰv. The 332 patients were included as a control group who had been treated at the same department for simple tibial plateau fracture from January 2010 to December 2015. The imaging data of the 2 groups were compared to find out the charateristics of cross type distribution; the widened distance of the lateral tibial plateau, collapse depth of the tibial plateau, separation of avulsion fracture of medial femoral condyle, maximum clearance of the medial knee and eversion angle of the tibial plateau were investigated in the patients with cross types e and Ⅰv in the observation group. \u0000 \u0000 \u0000Results \u0000In the observation group, the widened distance of the lateral tibial plateau averaged 7.18 mm, the collapse depth of the tibial plateau 8.74 mm, the separation of avulsion fracture of medial femoral condyle 3.44 mm, the maximum clearance of the medial knee 7.77 mm, and the eversion angle of the tibial plateau 87.03°. There was a significant difference in the cross type distribution of tibial plateau fractures between the 2 groups (P=0.002). In the observation group, the average widened distance of the lateral tibial platea for the 13 type e patients (8.49±4.26 mm)was significantly larger than that for the 3 type Ⅰv patients (1.51±2.11 mm) (t=2.706, P=0.017). \u0000 \u0000 \u0000Conclusion \u0000The cross classification of tibial plateau fractures with avulsion fracture of mediall condyle of the same femur may result mainly in types e and type Ⅰv. The widened distance of lateral tibial plateau helps distinction between types e and type Ⅰv. \u0000 \u0000 \u0000Key words: \u0000Tibial fractures; Femoral fractures; Classification; Radiology","PeriodicalId":10145,"journal":{"name":"Chinese Journal of Orthopaedic Trauma","volume":"21 1","pages":"1073-1076"},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49411060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-15DOI: 10.3760/CMA.J.ISSN.1671-7600.2019.12.015
Youliang Shen, Jia-Sen Gao, Chao Qi, Yi Zhang, Jinli Chen
{"title":"A case report of chronic irreducible anterior dislocation of the knee","authors":"Youliang Shen, Jia-Sen Gao, Chao Qi, Yi Zhang, Jinli Chen","doi":"10.3760/CMA.J.ISSN.1671-7600.2019.12.015","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1671-7600.2019.12.015","url":null,"abstract":"","PeriodicalId":10145,"journal":{"name":"Chinese Journal of Orthopaedic Trauma","volume":"21 1","pages":"1090-1092"},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45637785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Objective To explore the role of a customized 3D printing guide in total hip arthroplasty (THA). Methods A retrospective analysis was performed of the 60 patients who had been treated by THA for avascular necrosis of the femoral head at Department of Orthopaedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine from January 2018 to May 2019. Half of them used the personalized 3D printing guide in THA and half did not. In the guide group there were 17 men and 13 women with an age of 53.4±8.9 years while in the conventional group 19 men and 11 women with an age of 54.7±9.4 years. The acetabular cups were orientated at an abduction angle of 40° and an anteversion angle of 15°. The intraoperative blood loss, operation time and acetabular abduction angle were compared between the 2 groups. Results The 2 groups were comparable due to insignificant differences between them in gender, age, body mass, cause of disease or staging of avascular necrosis of the femoral head (P>0.05). The guide group had significantly less intraoperative blood loss (286.7±150.8 mL) and operation time (90.5±34.4 min) than the conventional group did (438.3±292.6 mL and 115.6±58.6 min) (P< 0.05). The acetabular cup abduction was 38.9°±4.2° in the guide group and 37.2°±5.5° in the conventional group, showing no significant difference(t=1.315, P=0.194). Conclusion Use of a personalized 3D printing guide in THA can shorten the time for installation of an acetabular prosthesis and reduce the amount of intraoperative blood loss, but it leads to insignificant difference in the postoperative acetabular cup abduction compared with no use of the guide. Key words: Arthroplasty, replacement, hip; 3D printing technique; Guide
{"title":"A personalized 3D printing guide in total hip arthroplasty","authors":"Xiaofang Liu, Guanming Zhou, Haibo Yu, Mingqiang Guan, Zhao-Jun Hou","doi":"10.3760/CMA.J.ISSN.1671-7600.2019.12.008","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1671-7600.2019.12.008","url":null,"abstract":"Objective \u0000To explore the role of a customized 3D printing guide in total hip arthroplasty (THA). \u0000 \u0000 \u0000Methods \u0000A retrospective analysis was performed of the 60 patients who had been treated by THA for avascular necrosis of the femoral head at Department of Orthopaedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine from January 2018 to May 2019. Half of them used the personalized 3D printing guide in THA and half did not. In the guide group there were 17 men and 13 women with an age of 53.4±8.9 years while in the conventional group 19 men and 11 women with an age of 54.7±9.4 years. The acetabular cups were orientated at an abduction angle of 40° and an anteversion angle of 15°. The intraoperative blood loss, operation time and acetabular abduction angle were compared between the 2 groups. \u0000 \u0000 \u0000Results \u0000The 2 groups were comparable due to insignificant differences between them in gender, age, body mass, cause of disease or staging of avascular necrosis of the femoral head (P>0.05). The guide group had significantly less intraoperative blood loss (286.7±150.8 mL) and operation time (90.5±34.4 min) than the conventional group did (438.3±292.6 mL and 115.6±58.6 min) (P< 0.05). The acetabular cup abduction was 38.9°±4.2° in the guide group and 37.2°±5.5° in the conventional group, showing no significant difference(t=1.315, P=0.194). \u0000 \u0000 \u0000Conclusion \u0000Use of a personalized 3D printing guide in THA can shorten the time for installation of an acetabular prosthesis and reduce the amount of intraoperative blood loss, but it leads to insignificant difference in the postoperative acetabular cup abduction compared with no use of the guide. \u0000 \u0000 \u0000Key words: \u0000Arthroplasty, replacement, hip; 3D printing technique; Guide","PeriodicalId":10145,"journal":{"name":"Chinese Journal of Orthopaedic Trauma","volume":"21 1","pages":"1059-1063"},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46073036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-15DOI: 10.3760/CMA.J.ISSN.1671-7600.2019.12.007
Kun Zhang, Jiabang Liu, Dong Li, Qinghua Zhang, Z. Pei, Zhao Li
Objective To compare the clinical efficacy between proximal femoral nail antirotation (PFNA) versus InterTAN nail in the treatment of senile patients with unstable femoral intertrochanteric fracture. Methods A retrospective study was conducted of the 164 senile patients with unstable femoral intertrochanteric fracture who had been treated at Department of Orthopedics, Shougang Hospital Affiliated to Peking University from January 2013 to March 2018. InterTAN nailing was performed in 93 of them, including 30 men and 63 women with an age of 84.5±2.4 years; by the AO classification, there were 53 cases of type 31-A2.2, 28 cases of type 31-A2.3 and 12 cases of type 31-A3. PENA fixation was performed in the other 71 patients, including 19 men and 52 women with an age of 83.8±2.3 years; by the AO classification, there were 41 cases of type 31-A2.2, 22 cases of type 31-A2.3 and 8 cases of type 31-A3. The 2 groups were compared in terms of weight-bearing time, thigh pain, hip function, imaging complications and postoperative quality of life. Results The 2 groups were comparable because there were no significant differences between them in preoperative general data (P>0.05). In the InterTAN nail group, the incidence of imaging complications [5.4%(5/93)] was significantly lower than in the PFNA group [18.3%(13/71)], the weight-bearing time (60.0±13.6 d) significantly shorter than in the PFNA group (65.8±11.0 d), and the incidence of thigh pain [3.2%(3/93)] significantly lower than in the PFNA group [12.7%(9/71)] (all P< 0.05). Of this series, 153 patients obtained an average follow-up of 39 months (from 12 to 75 months). At the last follow-ups, the Harris scores in the InterTAN nail group (78.3±12.2) were significantly higher than in the PENA group (73.6±11.3) (P<0.05). The InterTAN nail group scored significantly higher in physical functioning (68.6±15.4), general health perceptions (78.2±10.3), vitality (74.0±12.6) and mental health (80.6±9.9) in the 36-item short form health survey (SF-36) than the PFNA groups did (64.1±9.9, 74.9±9.0, 69.9±10.9 and 77.4±8.8) (all P<0.05). Conclusions Both internal fixation procedures are able to heal the fracture and restore the hip function in the senile patients with unstable femoral intertrochanteric fracture. However, InterTAN nail may have the advantages of earlier weight-bearing, lower incidence of varus deformity and better recovery of postoperative quality of life. Key words: Hip fractures; Fracture fixation, intramedullary; Bone nails; Quality of life
{"title":"Comparison of proximal femoral nail antirotation versus InterTAN nail in the treatment of senile patients with unstable femoral intertrochanteric fracture","authors":"Kun Zhang, Jiabang Liu, Dong Li, Qinghua Zhang, Z. Pei, Zhao Li","doi":"10.3760/CMA.J.ISSN.1671-7600.2019.12.007","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1671-7600.2019.12.007","url":null,"abstract":"Objective \u0000To compare the clinical efficacy between proximal femoral nail antirotation (PFNA) versus InterTAN nail in the treatment of senile patients with unstable femoral intertrochanteric fracture. \u0000 \u0000 \u0000Methods \u0000A retrospective study was conducted of the 164 senile patients with unstable femoral intertrochanteric fracture who had been treated at Department of Orthopedics, Shougang Hospital Affiliated to Peking University from January 2013 to March 2018. InterTAN nailing was performed in 93 of them, including 30 men and 63 women with an age of 84.5±2.4 years; by the AO classification, there were 53 cases of type 31-A2.2, 28 cases of type 31-A2.3 and 12 cases of type 31-A3. PENA fixation was performed in the other 71 patients, including 19 men and 52 women with an age of 83.8±2.3 years; by the AO classification, there were 41 cases of type 31-A2.2, 22 cases of type 31-A2.3 and 8 cases of type 31-A3. The 2 groups were compared in terms of weight-bearing time, thigh pain, hip function, imaging complications and postoperative quality of life. \u0000 \u0000 \u0000Results \u0000The 2 groups were comparable because there were no significant differences between them in preoperative general data (P>0.05). In the InterTAN nail group, the incidence of imaging complications [5.4%(5/93)] was significantly lower than in the PFNA group [18.3%(13/71)], the weight-bearing time (60.0±13.6 d) significantly shorter than in the PFNA group (65.8±11.0 d), and the incidence of thigh pain [3.2%(3/93)] significantly lower than in the PFNA group [12.7%(9/71)] (all P< 0.05). Of this series, 153 patients obtained an average follow-up of 39 months (from 12 to 75 months). At the last follow-ups, the Harris scores in the InterTAN nail group (78.3±12.2) were significantly higher than in the PENA group (73.6±11.3) (P<0.05). The InterTAN nail group scored significantly higher in physical functioning (68.6±15.4), general health perceptions (78.2±10.3), vitality (74.0±12.6) and mental health (80.6±9.9) in the 36-item short form health survey (SF-36) than the PFNA groups did (64.1±9.9, 74.9±9.0, 69.9±10.9 and 77.4±8.8) (all P<0.05). \u0000 \u0000 \u0000Conclusions \u0000Both internal fixation procedures are able to heal the fracture and restore the hip function in the senile patients with unstable femoral intertrochanteric fracture. However, InterTAN nail may have the advantages of earlier weight-bearing, lower incidence of varus deformity and better recovery of postoperative quality of life. \u0000 \u0000 \u0000Key words: \u0000Hip fractures; Fracture fixation, intramedullary; Bone nails; Quality of life","PeriodicalId":10145,"journal":{"name":"Chinese Journal of Orthopaedic Trauma","volume":"21 1","pages":"1052-1058"},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46480421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-15DOI: 10.3760/CMA.J.ISSN.1671-7600.2019.12.017
Fulin He, Dongni Yang, Q. Zhu
It is difficult for peripheral nerves to achieve effective and orderly regeneration after injury for there are always mismatched, curly and disorderly newborn axons. Chondroitin sulfate proteoglycan (CSPGs), a kind of widespread extracellular matrix generally considered to inhibit peripheral nerve regeneration, may play an important role in promoting orderly regeneration of axons depending on its classification, physiological characteristics and spatial and temporal distribution as well. Complementing traditional modes of regenerating axons, its flexible applications may benefit biomimetic construction of peripheral nerve grafts that purely increase the number of axons and thus promote orderly and effective regeneration after peripheral nerve lesions. Key words: Proteochondroitin sulfates; Peripheral nerves; Nerve regeneration
{"title":"Advances in research into the effect of chondroitin sulfate proteoglycan on orderly regeneration of peripheral nerves","authors":"Fulin He, Dongni Yang, Q. Zhu","doi":"10.3760/CMA.J.ISSN.1671-7600.2019.12.017","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1671-7600.2019.12.017","url":null,"abstract":"It is difficult for peripheral nerves to achieve effective and orderly regeneration after injury for there are always mismatched, curly and disorderly newborn axons. Chondroitin sulfate proteoglycan (CSPGs), a kind of widespread extracellular matrix generally considered to inhibit peripheral nerve regeneration, may play an important role in promoting orderly regeneration of axons depending on its classification, physiological characteristics and spatial and temporal distribution as well. Complementing traditional modes of regenerating axons, its flexible applications may benefit biomimetic construction of peripheral nerve grafts that purely increase the number of axons and thus promote orderly and effective regeneration after peripheral nerve lesions. \u0000 \u0000 \u0000Key words: \u0000Proteochondroitin sulfates; Peripheral nerves; Nerve regeneration","PeriodicalId":10145,"journal":{"name":"Chinese Journal of Orthopaedic Trauma","volume":"21 1","pages":"1097-1100"},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44844369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-15DOI: 10.3760/CMA.J.ISSN.1671-7600.2019.12.002
Hao Wu, Ta-I Wang, Jiakai Gao, L. Bi, G. Pei
Objective To establish an efficient classification and treatment system for limb long bone defects. Methods Based on the length of bone defect, soft tissue injury and wound infection, a new classification and treatment system was proposed with reference to Gustilo-Anderson classification for open fractures and Orthopedic Trauma Association (OTA) classification. Results We divided the limb long bone defects into 3 types, each of which was subdivided into 4 subtypes depending on concomitant soft tissue defect and/or infection. Type Ⅰ are bone defects less than 4 cm in length, including type Ⅰa (simple bone defects with a limited extent), type Ⅰb (bone and soft tissue defects), type Ⅰc (bone defects with infection) and type Ⅰd (bone defects with infection and soft tissue defects). Type Ⅱ are bone defects ranging from 4 to 10 cm in length, including type Ⅱa (simple bone defects with a large extent), type Ⅱb (bone and soft tissue defects), type Ⅱc (bone defects with infection) and type Ⅱd (bone defects with infection and soft tissue defects). Type Ⅲ are bone defects larger than 10 cm in length, including type Ⅲa (simple bone defects with a very large extent), type Ⅲb (bone and soft tissue defects), type Ⅲc (bone defects with infection) and type Ⅲd (bone defects with infection and soft tissue defects). Conclusion Our new classification and treatment system for long limb bone defects is more efficient and intuitive, facilitating clinical diagnosis and treatment of limb long bone defects. Key words: Extremities; Bone defects; Classification; Treatment
{"title":"A new classification and treatment system of limb long bone defects","authors":"Hao Wu, Ta-I Wang, Jiakai Gao, L. Bi, G. Pei","doi":"10.3760/CMA.J.ISSN.1671-7600.2019.12.002","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1671-7600.2019.12.002","url":null,"abstract":"Objective \u0000To establish an efficient classification and treatment system for limb long bone defects. \u0000 \u0000 \u0000Methods \u0000Based on the length of bone defect, soft tissue injury and wound infection, a new classification and treatment system was proposed with reference to Gustilo-Anderson classification for open fractures and Orthopedic Trauma Association (OTA) classification. \u0000 \u0000 \u0000Results \u0000We divided the limb long bone defects into 3 types, each of which was subdivided into 4 subtypes depending on concomitant soft tissue defect and/or infection. Type Ⅰ are bone defects less than 4 cm in length, including type Ⅰa (simple bone defects with a limited extent), type Ⅰb (bone and soft tissue defects), type Ⅰc (bone defects with infection) and type Ⅰd (bone defects with infection and soft tissue defects). Type Ⅱ are bone defects ranging from 4 to 10 cm in length, including type Ⅱa (simple bone defects with a large extent), type Ⅱb (bone and soft tissue defects), type Ⅱc (bone defects with infection) and type Ⅱd (bone defects with infection and soft tissue defects). Type Ⅲ are bone defects larger than 10 cm in length, including type Ⅲa (simple bone defects with a very large extent), type Ⅲb (bone and soft tissue defects), type Ⅲc (bone defects with infection) and type Ⅲd (bone defects with infection and soft tissue defects). \u0000 \u0000 \u0000Conclusion \u0000Our new classification and treatment system for long limb bone defects is more efficient and intuitive, facilitating clinical diagnosis and treatment of limb long bone defects. \u0000 \u0000 \u0000Key words: \u0000Extremities; Bone defects; Classification; Treatment","PeriodicalId":10145,"journal":{"name":"Chinese Journal of Orthopaedic Trauma","volume":"21 1","pages":"1024-1028"},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45179486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-15DOI: 10.3760/CMA.J.ISSN.1671-7600.2019.12.004
Hai-jing Huang, Binfei Zhang, Hong Zhang, Pengfei Wang, Y. Cong, Shuang Han, Ping Liu, Chao Ke, Kun Shang, Hu Wang, Kun Zhang, Y. Zhuang
Objective To explore the application of Doppler ultrasound to assess the stability of pelvic ring in treatment of lateral-compression-1 (LC-1) pelvic fractures. Methods For this prospective study 38 patients with LC-1 pelvic fracture were enrolled who had been admitted to the Department of Orthopedic Trauma, Honghui Hospital from July 2016 to November 2017. They were 22 men and 16 women with an age of 55.2±16.1 years. After the patient's condition was stable, they underwent a Doppler ultrasound examination in the pelvic compression separation test. According to the criteria preset: those with a left-right mobility ≥ 0.3 cm were assigned as an unstable group (16 cases) and those with a mobility<0.3 cm as a stable group (22 cases). The stable group received conservative treatment while the unstable group surgical treatment. The 2 groups were compared in terms of mobility of fracture ends, follow-up time, weight-bearing time, fracture healing time, and the Majeed scores of pelvic function at the last follow-up. Results The 2 groups were compatible due to their insignificant differences in baseline data(P>0.05). The mobility of fracture ends (left-right distance: 0.45±0.22 cm; anterior-posterior distance: 0.26±0.16 cm; oblique distance: 0.50±0.23 cm) in the unstable group was all significantly greater than in the stable group (left-right distance: 0.11±0.03 cm; anterior-posterior distance: 0.05±0.04 cm; oblique distance: 0.11±0.07 cm) (P 0.05). Conclusions Since ultrasonography is helpful in assessment of the stability of LC-1 pelvic fractures, a proper treatment strategy can be decided. Stable ones can be treated conservatively and unstable ones surgically. Key words: Pelvis; Fractures, bone; Lateral compression; Ultrasonography, doppler; Stability
{"title":"Doppler ultrasound assessment of the stability of pelvicring in lateral-compression-1 pelvic fracture: a preliminary study","authors":"Hai-jing Huang, Binfei Zhang, Hong Zhang, Pengfei Wang, Y. Cong, Shuang Han, Ping Liu, Chao Ke, Kun Shang, Hu Wang, Kun Zhang, Y. Zhuang","doi":"10.3760/CMA.J.ISSN.1671-7600.2019.12.004","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1671-7600.2019.12.004","url":null,"abstract":"Objective \u0000To explore the application of Doppler ultrasound to assess the stability of pelvic ring in treatment of lateral-compression-1 (LC-1) pelvic fractures. \u0000 \u0000 \u0000Methods \u0000For this prospective study 38 patients with LC-1 pelvic fracture were enrolled who had been admitted to the Department of Orthopedic Trauma, Honghui Hospital from July 2016 to November 2017. They were 22 men and 16 women with an age of 55.2±16.1 years. After the patient's condition was stable, they underwent a Doppler ultrasound examination in the pelvic compression separation test. According to the criteria preset: those with a left-right mobility ≥ 0.3 cm were assigned as an unstable group (16 cases) and those with a mobility<0.3 cm as a stable group (22 cases). The stable group received conservative treatment while the unstable group surgical treatment. The 2 groups were compared in terms of mobility of fracture ends, follow-up time, weight-bearing time, fracture healing time, and the Majeed scores of pelvic function at the last follow-up. \u0000 \u0000 \u0000Results \u0000The 2 groups were compatible due to their insignificant differences in baseline data(P>0.05). The mobility of fracture ends (left-right distance: 0.45±0.22 cm; anterior-posterior distance: 0.26±0.16 cm; oblique distance: 0.50±0.23 cm) in the unstable group was all significantly greater than in the stable group (left-right distance: 0.11±0.03 cm; anterior-posterior distance: 0.05±0.04 cm; oblique distance: 0.11±0.07 cm) (P 0.05). \u0000 \u0000 \u0000Conclusions \u0000Since ultrasonography is helpful in assessment of the stability of LC-1 pelvic fractures, a proper treatment strategy can be decided. Stable ones can be treated conservatively and unstable ones surgically. \u0000 \u0000 \u0000Key words: \u0000Pelvis; Fractures, bone; Lateral compression; Ultrasonography, doppler; Stability","PeriodicalId":10145,"journal":{"name":"Chinese Journal of Orthopaedic Trauma","volume":"21 1","pages":"1036-1040"},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49375229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-15DOI: 10.3760/CMA.J.ISSN.1671-7600.2019.12.018
Yake Liu, Zhenyu Zhou
{"title":"Treatment of periprosthetic fracture after hip replacement","authors":"Yake Liu, Zhenyu Zhou","doi":"10.3760/CMA.J.ISSN.1671-7600.2019.12.018","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1671-7600.2019.12.018","url":null,"abstract":"","PeriodicalId":10145,"journal":{"name":"Chinese Journal of Orthopaedic Trauma","volume":"21 1","pages":"1101-1104"},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47080539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-15DOI: 10.3760/CMA.J.ISSN.1671-7600.2019.12.009
Geng Xiang, Yani Feng, Jiangang Cheng, Yang Gao, Huang Xiaofan, Tian-cheng Ma, G. Pei
Objective To compare the biomechanical performance between the single- versus double-threaded cannulated screws in the treatment of femoral neck fractures of Pauwels type Ⅲ. Methods Models of femoral neck fracture of Pauwels type Ⅲ (70°) were made of the Sawbone synthetic composite femurs. All specimens were divided into 2 groups (n=12). Group A was fixated with single-threaded cannulated screws and group B with double-threaded cannulated screws, both in an inverted triangle configuration. The screws ranged from 90 to 95 mm in length and from 7.3 to 7.5 mm in diameter. All the specimens were subjected to axial stiffness and failure load tests with 7° valgus (simulating normal two-legged weight-bearing stance) and 25° valgus (simulating normal one-legged weight-bearing stance) and torsion test as well. The 2 groups were compared in the torques at axial stiffness angles of 1°, 2°, 3°, 5° and 7°. Results Group B had significantly greater axial stiffness at 7° valgus and 25° valgus (89±26 N/mm and 128±37 N/mm) and failure load (1,154±368 N) than group A did (36±12 N/mm and 47±16 N/mm; 688±94 N) (P< 0.05). The torques increased with the increase in rotation angle in both groups. However, the torques in group B (3.26±0.96, 4.16±1.23, 4.64±1.13, 5.59±1.26 and 6.53±1.47 N·m) were all significantly larger than in group A (1.44±0.19, 2.03±0.41, 2.33±0.62, 2.74±0.87 and 3.05±1.07 N·m) (P<0.05). Conclusion Double-threaded cannulated screws may provide better biomechanical stability than single-threaded ones, due to their substantial improvement in anti-compression and anti-rotation performance. Key words: Femoral neck fractures; Fracture fixation, internal; Bone nails; Biomechanics; Pauwels Ⅲ
{"title":"A biomechanical comparison of single- versus double-threaded cannulated screws for femoral neck fractures of Pauwels type III","authors":"Geng Xiang, Yani Feng, Jiangang Cheng, Yang Gao, Huang Xiaofan, Tian-cheng Ma, G. Pei","doi":"10.3760/CMA.J.ISSN.1671-7600.2019.12.009","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1671-7600.2019.12.009","url":null,"abstract":"Objective \u0000To compare the biomechanical performance between the single- versus double-threaded cannulated screws in the treatment of femoral neck fractures of Pauwels type Ⅲ. \u0000 \u0000 \u0000Methods \u0000Models of femoral neck fracture of Pauwels type Ⅲ (70°) were made of the Sawbone synthetic composite femurs. All specimens were divided into 2 groups (n=12). Group A was fixated with single-threaded cannulated screws and group B with double-threaded cannulated screws, both in an inverted triangle configuration. The screws ranged from 90 to 95 mm in length and from 7.3 to 7.5 mm in diameter. All the specimens were subjected to axial stiffness and failure load tests with 7° valgus (simulating normal two-legged weight-bearing stance) and 25° valgus (simulating normal one-legged weight-bearing stance) and torsion test as well. The 2 groups were compared in the torques at axial stiffness angles of 1°, 2°, 3°, 5° and 7°. \u0000 \u0000 \u0000Results \u0000Group B had significantly greater axial stiffness at 7° valgus and 25° valgus (89±26 N/mm and 128±37 N/mm) and failure load (1,154±368 N) than group A did (36±12 N/mm and 47±16 N/mm; 688±94 N) (P< 0.05). The torques increased with the increase in rotation angle in both groups. However, the torques in group B (3.26±0.96, 4.16±1.23, 4.64±1.13, 5.59±1.26 and 6.53±1.47 N·m) were all significantly larger than in group A (1.44±0.19, 2.03±0.41, 2.33±0.62, 2.74±0.87 and 3.05±1.07 N·m) (P<0.05). \u0000 \u0000 \u0000Conclusion \u0000Double-threaded cannulated screws may provide better biomechanical stability than single-threaded ones, due to their substantial improvement in anti-compression and anti-rotation performance. \u0000 \u0000 \u0000Key words: \u0000Femoral neck fractures; Fracture fixation, internal; Bone nails; Biomechanics; Pauwels Ⅲ","PeriodicalId":10145,"journal":{"name":"Chinese Journal of Orthopaedic Trauma","volume":"21 1","pages":"1064-1068"},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46029349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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