1.O-arm navigation versus C-arm navigation for guiding percutaneous long sacroiliac screws placement in treatment of Denis type Ⅱ sacral fractures.
Wei ZHOU ; Guodong WANG ; Xuan PEI ; Zhixun FANG ; Yu CHEN ; Suyaolatu BAO ; Jianan CHEN ; Ximing LIU
Chinese Journal of Reparative and Reconstructive Surgery 2024;38(1):28-34
		                        		
		                        			OBJECTIVE:
		                        			To compare the effectiveness of O-arm navigation and C-arm navigation for guiding percutaneous long sacroiliac screws in treatment of Denis type Ⅱ sacral fractures.
		                        		
		                        			METHODS:
		                        			A retrospective study was conducted on clinical data of the 46 patients with Denis type Ⅱ sacral fractures between April 2021 and October 2022. Among them, 19 patients underwent O-arm navigation assisted percutaneous long sacroiliac screw fixation (O-arm navigation group), and 27 patients underwent C-arm navigation assisted percutaneous long sacroiliac screw fixation (C-arm navigation group). There was no significant difference in gender, age, causes of injuries, Tile classification of pelvic fractures, combined injury, the interval from injury to operation between the two groups ( P>0.05). The intraoperative preparation time, the placement time of each screw, the fluoroscopy time of each screw during placement, screw position accuracy, the quality of fracture reduction, and fracture healing time were recorded and compared, postoperative complications were observed. Pelvic function was evaluated by Majeed score at last follow-up.
		                        		
		                        			RESULTS:
		                        			All operations were completed successfully, and all incisions healed by first intention. Compared to the C-arm navigation group, the O-arm navigation group had shorter intraoperative preparation time, placement time of each screw, and fluoroscopy time, with significant differences ( P<0.05). There was no significant difference in screw position accuracy and the quality of fracture reduction ( P>0.05). There was no nerve or vascular injury during screw placed in the two groups. All patients in both groups were followed up, with the follow-up time of 6-21 months (mean, 12.0 months). Imaging re-examination showed that both groups achieved bony healing, and there was no significant difference in fracture healing time between the two groups ( P>0.05). During follow-up, there was no postoperative complications, such as screw loosening and breaking or loss of fracture reduction. At last follow-up, there was no significant difference in pelvic function between the two groups ( P>0.05).
		                        		
		                        			CONCLUSION
		                        			Compared with the C-arm navigation, the O-arm navigation assisted percutaneous long sacroiliac screws for the treatment of Denis typeⅡsacral fractures can significantly shorten the intraoperative preparation time, screw placement time, and fluoroscopy time, improve the accuracy of screw placement, and obtain clearer navigation images.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Fracture Fixation, Internal/methods*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Imaging, Three-Dimensional
		                        			;
		                        		
		                        			Bone Screws
		                        			;
		                        		
		                        			Surgery, Computer-Assisted
		                        			;
		                        		
		                        			Tomography, X-Ray Computed
		                        			;
		                        		
		                        			Spinal Fractures/surgery*
		                        			;
		                        		
		                        			Fractures, Bone/surgery*
		                        			;
		                        		
		                        			Pelvic Bones/injuries*
		                        			;
		                        		
		                        			Postoperative Complications
		                        			;
		                        		
		                        			Neck Injuries
		                        			
		                        		
		                        	
3.Clinical analysis of distal radius core decompression for chronic wrist pain.
Jixin WU ; Jiayu SUN ; Xin LIU ; Jie SONG ; Shaonan HU ; Liang CHEN
Chinese Journal of Reparative and Reconstructive Surgery 2023;37(7):815-820
		                        		
		                        			OBJECTIVE:
		                        			To investigate the effectiveness of distal radius core decompression in the treatment of chronic wrist pain caused by various etiologies.
		                        		
		                        			METHODS:
		                        			A retrospective analysis was performed for the clinical data of 10 patients with chronic wrist pain treated with distal radial core decompression between January 2018 and December 2021. There were 6 males and 4 females with an average age of 37.4 years (range, 21-55 years). The disease duration ranged from 7 to 72 months, with an average of 26.5 months. Preoperative MRI examination showed that 10 cases had bone marrow edema at the distal radius on the affected side, and 8 cases had bone marrow edema in the carpal bones such as scaphoid and lunate bone. Among them, 3 patients had a history of wrist fracture, and 2 patients had Kienböck diseases (1 case each in stage ⅡB and stage ⅢA). Three cases were combined with triangular fibrocartilage complex (TFCC) type 1A injury. Two cases were combined with osteoarthritis, 1 of them was complicated with severe traumatic arthritis, the wrist arthroscopy showed that the TFCC was completely lost and could not be repaired, and the cartilage of the lunate bone and the ulnar head were severely worn.Visual analogue scale (VAS) score was used to evaluate the relief of wrist pain before operation, at 6 months after operation, and at last follow-up, and the range of motion of the affected wrist in dorsiflexion, palmar flexion, ulnar deviation, and radial deviation was measured. The degree of bone marrow edema was evaluated according to T1WI, T2WI, and STIR sequences of MRI.
		                        		
		                        			RESULTS:
		                        			All the patients were followed up 12-22 months, with an average of 16.4 months. Except for 1 patient who experienced persistent wrist joint pain and limited mobility after operation, the remaining 9 patients showed significant improvement in pain symptoms and wrist joint mobility. The VAS score and range of motion of wrist dorsiflexion, palmar flexion, ulnar deviation, and radial deviation at 6 months after operation and at last follow-up were significantly improved when compared with those before operation, the VAS score and the range of motion of wrist ulnar deviation and radial deviation at last follow-up were further improved when compared with those at 6 months after operation, all showing significant differences ( P<0.05). There was no significant difference in wrist dorsiflexion and palmar flexion between at 6 months after operation and at last follow-up ( P>0.05). Bone marrow edema was improved in 6 patients on MRI at 6 months after operation, and was also improved in other patients at last follow-up.
		                        		
		                        			CONCLUSION
		                        			For chronic wrist pain caused by a variety of causes, distal radius core decompression can directly reduce the pressure of the medullary cavity of the distal radius, improve the blood supply of the corresponding distal structure, significantly alleviate chronic wrist pain, and provide an option for clinical treatment.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Radius/surgery*
		                        			;
		                        		
		                        			Wrist
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Radius Fractures/surgery*
		                        			;
		                        		
		                        			Wrist Joint/surgery*
		                        			;
		                        		
		                        			Scaphoid Bone/surgery*
		                        			;
		                        		
		                        			Pain
		                        			;
		                        		
		                        			Arthralgia/complications*
		                        			;
		                        		
		                        			Arthroscopy
		                        			;
		                        		
		                        			Decompression
		                        			;
		                        		
		                        			Range of Motion, Articular
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
4.Comparison of clinical effect and postopertaive incisions between No-touch technique and traditional retractor in treating calcaneal fracture.
Zheng-Wen LIAO ; Cheng-Kua HUANG ; Shi CHEN ; Wei LI
China Journal of Orthopaedics and Traumatology 2023;36(4):302-308
		                        		
		                        			OBJECTIVE:
		                        			To compare clinical efficacy of No-touch technique and traditional retractor in treating calcaneal fracture.
		                        		
		                        			METHODS:
		                        			Clinical data of 74 calcaneal fracture patients with closed Sanders typeⅡ to Ⅳ were retrospectively analyzed from July 2019 to June 2021. According to different treatment methods, the patients were divided into No-touch group and conventional group, 37 patinets in each group. In No-touch group, there were 25 males and 12 females, aged from 19 to 70 years old with an average of (42.64±14.16) years old;17 patients were typeⅡ, 14 patinets with type Ⅲ, 6 patients with type Ⅳ according to Sanders fracture classification;three 2.0 mm Kirschner wires were implanted into the talus body, talus neck, and cuboid bone, and the flap was turned upward to expose the operation area. In conventional group, there were 30 males and 7 females, aged from 19 to 67 years old with an average of (41.56±11.38) years old;17 patients with typeⅡ, 12 patients with type Ⅲ, 8 patients with type Ⅳ according to Sanders fracture classification;the operation was completed by exposing the operation area with traditional retractor. Operation time, postoperative incision complications, postoperaive American Orthopedic Foot and Ankle Society (AOFAS) ankle hind foot score at 6 months between two groups were compared.
		                        		
		                        			RESULTS:
		                        			Seventy-four patients were followed up, and follow-up time in No-touch group ranged from 6 to 17 months with an average of(9.57±2.72) months, while in conventional group ranged from 6 to 16 months with an averge of(9.14±2.71) months, and no difference in follow-up between two groups (P>0.05). Operation time in No-touch group (55.67±7.94) min was shorter than that in conventional group (70.16±9.41) min (P<0.05);four patients in No-touch group occurred incision complications, while 8 patients in normal group, and had statistically difference(P<0.05). Daily activities and support, maximum walking distance (block), ground walking, limited degree of flexion, extension and valgus, foot alignment and total score of AOFAS scores in No-touch group was significantly higher than that of conventional group (P<0.05). There were no significant difference in pain degree, abnormal gait and ankle hind foot stability between two groups(P>0.05). According to AOFAS score, 19 patients got excellent result, 16 good and 2 poor in No-touch group;while 9 excellent, 24 good, and 4 poor in conventional group, and no difference between two groups (P>0.05).
		                        		
		                        			CONCLUSION
		                        			Compared with traditional retractor in treating calcaneal fracture, No-touch technology could significantly shorten operation time, reduce incidence of postopertive complications, while two methods could improve excellent and good rate of ankle joint function recovery after operation.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Young Adult
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Fracture Fixation, Internal
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Calcaneus/surgery*
		                        			;
		                        		
		                        			Fractures, Bone/surgery*
		                        			;
		                        		
		                        			Ankle Injuries
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Ankle Joint
		                        			;
		                        		
		                        			Foot Injuries
		                        			;
		                        		
		                        			Knee Injuries
		                        			;
		                        		
		                        			Postoperative Complications
		                        			;
		                        		
		                        			Talus
		                        			
		                        		
		                        	
5.Treatment of Sanders typeⅡto Ⅲ calcaneal fractures with percutaneous reduction and minimally invasive calcaneal screw fixation.
Jie HUANG ; Jin LIU ; Jian-Wei ZHANG
China Journal of Orthopaedics and Traumatology 2023;36(4):313-319
		                        		
		                        			OBJECTIVE:
		                        			To investigate clinical effect of percutaneous reduction combined with internal fixation of calcaneal nail in treating Sanders typeⅡto Ⅲ calcaneal fractures.
		                        		
		                        			METHODS:
		                        			From July 2017 to August 2019, clinical data of 98 patients with Sanders typeⅡto Ⅲ calcaneal fractures treated were retrospectively analyzed, and divided into observation group and control group according to different surgical methods. In observation group, there were 35 males and 21 females, aged from 23 to 58 years old with an average of (34.50±7.81) years old;29 patients with Sanders typeⅡand 27 patients with Sanders type Ⅲ;30 patients on the left side and 26 patients on the right side;the time from fracture to operation ranged from 1 to 4 days with an average of (3.45±0.54) days;and treated with percutaneous reduction combined with internal fixation of calcaneal nail system. In control group, there were 25 males and 17 females, aged from 25 to 60 years old with an average of (35.27±7.64) years old;23 patients with Sanders type Ⅱ and 19 patients with Sanders type Ⅲ;24 patients on the left side and 18 patients on the right side;the time from fracture to operation ranged from 2 to 5 days with an average of (3.42±0.62) days;and treated with open reduction and internal fixation. Operation time, blood loss, hospital stay, fracture healing time, and postoperative visual analogue scale (VAS) at 1 day, preoperative and postoperative American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, Böhler angle, Gissane angle and calcaneus width, and postoperative complications were compared between two groups.
		                        		
		                        			RESULTS:
		                        			All patients were followed up from 13 to 18 months with an average of (15.6±2.2) months. There were significant differences in operation time, blood loss, hospital stay, fracture healing time and postoperative VAS at 1 day between two groups (P<0.05). There was statistical difference in postoperative AOFAS score at 12 months between two groups (P<0.05), and AOFAS score at 12 months after operation was higher than that before operation (P<0.05). According to AOFAS score, 21 patients got excellent result, 30 good and 5 moderate in observation group, and 10 excellent, 22 good, 7 moderate and 3 poor in control group, which had statistical difference between two groups (P<0.05). Postoperative Böhler angle, Gissane angle and calcaneus width at 6 months were better than that before operation between two groups(P<0.05). One patient in observation and 20 patients in control group occurred skin numbness after operation, and 14 patients occurred skin necrosis in control group, there were obvious difference between two groups(P<0.01).
		                        		
		                        			CONCLUSION
		                        			Compared with open reduction and internal fixation, percutaneous reduction combined with internal fixation system in treating Sanders typeⅡto Ⅲ calcaneal fractures is feasible for fracture repair without waiting for foot deswelling, which could accurately restore normal shape and position of the fractured heel bone, completely eliminate fracture malunion, and reduce postoperative complications. Therefore, it could shorten operation time, hospital stay, fracture healing time, reduce amount of blood loss, promote postoperative recovery, and less complications, high safety, which could be used as a choice of orthopedic surgery for foot and ankle trauma.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Infant, Newborn
		                        			;
		                        		
		                        			Calcaneus/injuries*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Fractures, Bone/surgery*
		                        			;
		                        		
		                        			Fracture Fixation, Internal
		                        			;
		                        		
		                        			Ankle Injuries
		                        			;
		                        		
		                        			Bone Screws
		                        			;
		                        		
		                        			Foot Injuries
		                        			;
		                        		
		                        			Knee Injuries
		                        			;
		                        		
		                        			Ankle Joint
		                        			;
		                        		
		                        			Postoperative Complications
		                        			
		                        		
		                        	
6.Meta-analysis of the effect of hollow nail and bone plate on Lisfranc injury.
Ming-Jie LIU ; Bin CHEN ; Hao WANG ; Xiang WU ; Hai-Yu SUN
China Journal of Orthopaedics and Traumatology 2023;36(7):676-685
		                        		
		                        			OBJECTIVE:
		                        			To compare the clinical efficacy of screw and bone plate internal fixation in the treatment of Lisfranc injury.
		                        		
		                        			METHODS:
		                        			The databases of Wanfang, CNKI, Pubmed, EMBASE, VIP, BIOSIS and other databases were retrieved by computer, and the clinical trial literature from January 1, 2000 to August 1, 2021 was retrieved, the methodological quality of the included studies was strictly evaluated and the data were extracted, and the obtained data were meta-analyzed by Revman 5.4 software.
		                        		
		                        			RESULTS:
		                        			Nine randomized controlled trial literature and 10 retrospective cohort studies were included, of which 416 patients in the experimental group were treated with screw internal fixation, and 435 patients in the control group were treated with bone plate internal fixation. Meta-analysis showed that the surgical time of the bone plate internal fixation group was longer than that of the screw internal fixation group [MD=-14.40, 95%CI(-17.21, -11.60), P<0.000 01], the postoperative X-ray anatomical reduction of the bone plate internal fixation group [MD=0.47, 95%CI(0.25, 0.86), P=0.01], the excellent and good rate of postoperative American orthopedic foot and ankle society(AOFAS) foot function score[MD=0.25, 95%CI(0.15, 0.42), P<0.000 01], postoperative AOFAS foot function score [MD=-5.51, 95%CI(-10.10, -0.92), P=0.02] of the bone plate fixation group was better than those of the screw internal fixation group. Two kinds of operation method had no statistical different for postoperative fracture healing time[MD=1.91, 95%CI(-1.36, 5.18), P=0.25], postoperative visual analgue scale(VAS)[MD=0.38, 95%CI(0.09, 0.86), P=0.11], postoperative complications [MD=1.32, 95%CI(0.73, 2.40), P=0.36], the postoperative infection [MD=0.84, 95%CI(0.48, 1.46), P=0.53], the postoperative fracture internal fixation loosening [MD=1.25, 95% CI(0.61, 2.53), P=0.54], the postoperative incidence of traumatic arthritis [MD=1.80, 95%CI(0.83, 3.91), P=0.14].
		                        		
		                        			CONCLUSION
		                        			Bone plate fixation has better short-term and medium-term results and lower reoperation rate in the treatment of Lisfranc injury, so it is recommended to use bone plate fixation in the treatment of Lisfranc injury.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Bone Plates
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Fractures, Bone/surgery*
		                        			;
		                        		
		                        			Fracture Fixation, Internal/methods*
		                        			;
		                        		
		                        			Bone Screws
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Postoperative Complications
		                        			
		                        		
		                        	
7.Clinical application of special fluoroscopy method in the treatment of distal radius fractures with volar locking plate.
Rong ZHANG ; He-Ming NIU ; Tao GUO ; Ping-Feng XIE ; Jia-Ming WU ; Jia-Bing XIE ; Lin WANG
China Journal of Orthopaedics and Traumatology 2023;36(2):128-132
		                        		
		                        			OBJECTIVE:
		                        			The relationship between the distal screws and the wrist articular surface was assessed by the additional lateral oblique fluoroscopic view during the operation, and the dorsal tangential view of the wrist was used to observe whether the distal screw penetrated the dorsal cortex, so as to evaluate the clinical efficacy of the volar locking plate in the treatment of distal radius fractures.
		                        		
		                        			METHODS:
		                        			From January 2020 to June 2021, 45 cases of fresh distal radius fractures were treated using the volar Henry's approach, including 20 males and 25 females, aged from 32 to 75 years old with an average of (52.4±8.1) years old. During the operation, they were divided into 2 groups according to the different intraoperative fluoroscopic views:the control group of 20 cases, treated with standard anteroposterior and lateral fluoroscopic view;25 cases in the observation group, additional lateral oblique fluoroscopic view and dorsal tangential view of the wrist were taken. The wrist joint function score and postoperative complications were evaluated at 6 weeks, 3 and 6 months after operation between two groups.
		                        		
		                        			RESULTS:
		                        			All 45 patients were followed up and the duration ranged from 6 to 14 months, with an average of (10.8±1.7) months, all patients achieved bone union and the incision healed well. The incidence of postoperative complications in the observation group was lower than that in the control group, and the difference was statistically significant (P<0.05). In terms of Gartland-Werley score of wrist joint function, the score of wrist function in the observation group was (4.58±1.31) at 6 weeks, (2.98±0.63) at 3 months and (1.95±0.65) at 6 months post-operatively, which were better than those in the control group (6.32±1.96) at 6 weeks, (3.63±0.76) at 3 months and (2.43±0.73) at 6 months. The difference was statistically significant (P<0.05). In the observation group, 7/25 cases(28%) were found to have screw penetration during the operation by additional lateral oblique and dorsal tangential radiograph fluoroscopic views of wrist.
		                        		
		                        			CONCLUSION
		                        			The addition of lateral oblique and dorsal tangential during the operation could improve the accuracy of distal screw placement, reduce postoperative complications, and achieve early functional exercise.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Wrist Fractures
		                        			;
		                        		
		                        			Radius Fractures/surgery*
		                        			;
		                        		
		                        			Fracture Fixation, Internal/methods*
		                        			;
		                        		
		                        			Fluoroscopy/methods*
		                        			;
		                        		
		                        			Bone Plates
		                        			;
		                        		
		                        			Postoperative Complications
		                        			
		                        		
		                        	
8.Mid-term outcome of arthroscopic TightRope fixation of displaced lateral end clavicular fractures: Average follow-up of 6.1 years.
Amit MEENA ; Akshya RAJ A ; Sumon Singphow SAIKIA ; B P SHARMA
Chinese Journal of Traumatology 2023;26(2):101-105
		                        		
		                        			PURPOSE:
		                        			Various surgical modalities are available to treat Neer types 2 and 5 unstable fractures of lateral end clavicle but none of them are standardized. Arthroscopic fixation of the displaced lateral end clavicle fractures provides good short-term results but mid- to long-term outcomes are not available. The purpose of this study was to show the mid- to long-term radiological and functional outcomes of these fractures treated arthroscopically by a TightRope device, and to show the complications associated with this procedure.
		                        		
		                        			METHODS:
		                        			A retrospective study was conducted over 2 years from January 2014 to December 2015 with a minimum 5-year follow-up. Active patients aged 18-50 years with acute (less than 3 weeks) displaced fracture of lateral end of the clavicle, with a minimum 5-year follow-up were included in the study. Patients with associated fractures of the proximal humerus, glenoid, scapula and acromioclavicular joint injuries were excluded from the study along with open fractures and neurovascular injuries. The outcomes were assessed by objective (complications and radiographic examination) and subjective criteria (quick disabilities of the arm, shoulder and hand score, the Constant-Murley score and the visual pain analogue scale). The data were analyzed by SPSS version 21.0.
		                        		
		                        			RESULTS:
		                        			Totally, 42 patients were operated during the study period and 37 were available with a minimum 5-year follow-up. Thirty were male and 7 were female with a mean age of 29.5 years and a mean follow-up of 6.1 years. The mean quick disabilities of the arm, shoulder and hand score was 68.2 ± 4.6 preoperatively and 1.27 ± 2.32 at final follow-up (p < 0.001); the mean visual pain analogue scale score was 6.85 ± 2.2 preoperatively and 0.86 ± 1.60 at final follow-up (p < 0.001). The average Constant-Murley score was 93.38 ± 3.25 at the end of the follow-up. There were 2 fixation failures, with established non-union and 3 patients developed radiographic acromioclavicular joint arthritis.
		                        		
		                        			CONCLUSIONS
		                        			Arthroscopic TightRope fixation of displaced lateral end clavicular fractures provides good radiological and functional outcomes at mid- to long-term follow-up. With the low complication rates and high patient satisfaction, this technique can be considered as a primary option in the surgical treatment of these fractures.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Follow-Up Studies
		                        			;
		                        		
		                        			Clavicle/surgery*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Fractures, Bone/complications*
		                        			;
		                        		
		                        			Fracture Fixation, Internal/methods*
		                        			;
		                        		
		                        			Fractures, Open
		                        			;
		                        		
		                        			Pain
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
9.Effectiveness of Kirschner wire fixation and coracoclavicular ligament reconstruction with suture anchor in treatment of Cho type ⅡC distal clavicle fractures.
Shijun ZHAO ; Xiang LI ; Wei ZHANG ; Jiabang ZHAO ; Zhaofeng ZENG ; Aiguo WANG
Chinese Journal of Reparative and Reconstructive Surgery 2023;37(11):1370-1374
		                        		
		                        			OBJECTIVE:
		                        			To evaluate the effectiveness of Kirschner wire fixation and coracoclavicular ligament reconstruction with suture anchor in the treatment of Cho type ⅡC distal clavicle fractures.
		                        		
		                        			METHODS:
		                        			The data of 17 patients with Cho type ⅡC distal clavicular fractures, who were treated with Kirschner wire fixation and coracoclavicular ligament reconstruction with suture anchor between June 2019 and June 2021, was retrospectively analyzed. There were 11 males and 6 females with an average age of 38.7 years (range, 19-72 years). The fractures were caused by falling in 12 cases and traffic accident in 5 cases. All patients had fresh closed fractures. The interval from injury to operation was 1-5 days (mean, 2.6 days). The preoperative injury severity score (ISS) was 6-27 (mean, 10.2). The operation time, intraoperative blood loss, hospital stay, fracture healing, and postoperative complications were analyzed. The shoulder joint function was evaluated by disabilities of the arm, shoulder, and hand (DASH) score and Constant score at last follow-up.
		                        		
		                        			RESULTS:
		                        			All operations were completed successfully. The operation time was 20-50 minutes (mean, 31.6 minutes). The intraoperative blood loss was 30-100 mL (mean, 50.6 mL). The hospital stay was 4-9 days (mean, 5.3 days). All incisions healed by first intention. All patients were followed up 12-16 months (mean, 13 months). All clavicle fractures healed, and the healing time was 8-15 weeks (mean, 11 weeks). No complications such as fracture displacement or nonunion caused by internal fixation failure occurred. During the follow-up, skin irritation caused by the Kirschner wire withdrawal occurred in 3 cases. The Kirschner wires were removed after fracture healing in 17 patients. At last follow-up, the Constant score of shoulder joint was 90-100 (mean, 98.2). The DASH score was 0-10 (mean, 1.5).
		                        		
		                        			CONCLUSION
		                        			Kirschner wire fixation combined with coracoclavicular ligament reconstruction with suture anchor in the treatment of Cho type ⅡC distal clavicle fractures has less postoperative complications and slight complications. It is convenient to remove the internal fixator. The Kirschner wire does not fix the distal clavicle fracture through the acromion, which has little effect on shoulder joint function and can obtain good effectiveness.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Bone Wires
		                        			;
		                        		
		                        			Clavicle/injuries*
		                        			;
		                        		
		                        			Suture Anchors
		                        			;
		                        		
		                        			Blood Loss, Surgical
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Fractures, Bone/surgery*
		                        			;
		                        		
		                        			Fracture Fixation, Internal
		                        			;
		                        		
		                        			Ligaments, Articular/surgery*
		                        			;
		                        		
		                        			Postoperative Complications
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
10.Clinical study on the subchondral screw compression technique assisted reduction of residual or secondary collapse of lateral tibial plateau.
Yuelei ZHANG ; Lecheng ZHANG ; Chao YAN ; Gang WANG
Chinese Journal of Reparative and Reconstructive Surgery 2023;37(12):1459-1464
		                        		
		                        			OBJECTIVE:
		                        			To explore the reduction and support effect of the subchondral screw compression technique for residual or secondary collapse of the lateral tibial plateau during operation.
		                        		
		                        			METHODS:
		                        			Between January 2020 and June 2021, 11 patients with residual or secondary collapse of the lateral tibial plateau during operation were treated with the subchondral screw compression technique. There were 6 males and 5 females, aged 52.3 years old (range, 27-64 years). The fractures were caused by traffic accident in 10 cases and falling from height in 1 case and located at the left knee in 6 cases and the right knee in 5 cases. According to Schatzker classification, there were 5 cases of type Ⅱ fractures, 4 cases of type Ⅲ fractures, and 2 cases of type Ⅴfractures. According to the three columns classification, there were 5 cases of lateral column, 4 cases of lateral column and posterior column, and 2 cases of three columns. The time from injury to operation was 4.5 days (range, 3-7 days). During the follow-up, X-ray films were obtained and the Rasmussen standard was used to evaluate the quality of fracture reduction, meanwhile fracture healing was observed. The medial proximal tibial angle (mPTA), posterior tibial slope angle (pTSA), and articular surface collapse were measured at immediate and 12 months after operation. The knee joint range of motion was evaluated at last follow-up, and the knee joint function was evaluated using the Hospital for Special Surgery (HSS) score.
		                        		
		                        			RESULTS:
		                        			All operations were successfully completed, with a mean operation time of 71.4 minutes (range, 55-120 minutes), and a mean hospital stay of 8.0 days (range, 5-13 days). The incisions all healed by first intention, without complications such as infection, flap necrosis, or vascular and nerve injury. All patients were followed up 16.5 months on average (range, 12-24 months). X-ray films showed that the fracture reduction score was 14-18 (mean, 16.7) according to Rasmussen score criteria; and 5 cases were rated as excellent and 6 as good. All fractures healed clinically with a mean clinical healing time of 14.9 weeks (range, 12-16 weeks), and there was no complications such as plate or screw loosening. At 12 months after operation, the mPTA and pTSA were (87.5±1.7)° and (6.2±3.1)°, respectively; there was no significant difference when compared to the values at immediate after operation [(87.6±1.8)° and (6.5±3.1)°] ( P>0.05). The articular surface of the tibial plateaus was effectively supported, and it collapsed again by 0-1.0 mm at 12 months, with an average of 0.4 mm. At last follow-up, the knee joint range of motion was 115°-135° (mean, 126.8°) and the HSS score for knee joint function was 87-98 (mean, 93.9). Five patients underwent secondary operation to remove the internal fixator at 12-18 months after operation.
		                        		
		                        			CONCLUSION
		                        			The subchondral screw compression technique is helpful for the reduction of residual or secondary collapse of the lateral tibial plateau during operation, and can provide good support for osteochondral blocks.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Tibial Fractures/complications*
		                        			;
		                        		
		                        			Fracture Fixation, Internal/methods*
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Knee Joint/surgery*
		                        			;
		                        		
		                        			Bone Screws
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
            
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