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CLINICAL EFFECTS OF CLAVICULAR HOOK PLATE FOR NEER TYPE Ⅱ FRACTURE OF DISTAL CLAVICLE

Objective To analyze the clinical effect of clavicular hook plate in treating Neer type Ⅱ fracture of distal clavicle. Methods From March 2004 to April 2006, 15 patients suffering from Neer type Ⅱ fracture of distal clavicle were treated with clavicular hook plate, including 12 males and 3 females with an average age of 39 years (range,17-69 years). All patients had acute injury,including accident injury (8 cases) and falling injury (7 cases). The results were assessed by the JOA method. Results The wounds healed by first intention. No early complications were found. All patients were followed up for an average of 16.4 months(range,9-34 months) .The mean JOA score was 93.1. Themean pain parameter was 28.0, the fuction was 18.8 and the range of motionwas 26.3. The X-ray films showed that bony union was obtained in all patients after 3.6 months, and the mean healing period was 3.9 months.No acromioclavicular subluxation and dislocation occurred. Conclusion The principal advantages of this method are reliable fixation and early rehabilitation. It is necessary to protect rotator cuff and tissues behind acromioclavicular joint and remove the plate as soon as possible after bony union.

锁骨钩钢板固定结合喙锁韧带重建治疗陈旧性肩锁关节脱位

目的 总结锁骨钩钢板固定结合喙锁韧带重建治疗陈旧性肩锁关节脱位的临床疗效。 方法 2003 年6 月－ 2008 年12 月，采用锁骨钩钢板固定结合喙锁韧带重建治疗17 例陈旧性肩锁关节脱位。男11 例，女6 例；年龄16 ～ 53 岁，平均39 岁。均为直接暴力致伤。左侧7 例，右侧10 例。Rockwood 分型：Ⅲ型14 例，Ⅳ型2 例，Ⅴ型1 例。受伤至手术时间为14 ～ 55 d，平均23 d。 结果 术后切口均Ⅰ期愈合。肩锁关节脱位均纠正，无神经、血管损伤等并发症发生。术后患者均获随访，随访时间6 ～ 15 个月，平均12 个月。术后3 ～ 6 个月取出锁骨钩钢板，无再脱位发生。术后6 个月按Karlsson 疗效评价标准：优12 例，良4 例，差1 例，优良率94.1%。 结论 锁骨钩钢板固定结合喙锁韧带重建具有操作简便、创伤小、固定可靠、可早期功能锻炼等优点，是治疗陈旧性肩锁关节脱位的一种有效方法。

锁骨钩钢板结合锚钉治疗肩锁关节脱位22例

锁骨钩钢板治疗胸锁关节前脱位八例

目的 总结锁骨钩钢板治疗胸锁关节前脱位的疗效。 方法 2003 年1 月－ 2008 年10 月，采用锁骨钩钢板治疗8 例交通事故伤所致胸锁关节前脱位。男7 例，女1 例；年龄30 ～ 54 岁。左侧2 例，右侧6 例。合并血气胸1 例，下肢骨折1 例，轻度脑外伤1 例。其中1 例脱位后曾行T 型钢板固定，术后15 d 内固定物松动，改为锁骨钩钢板固定；余7 例均为首次手术，受伤至手术时间为3 ～ 5 d。 结果 术后切口均Ⅰ期愈合，无神经、血管损伤及血气胸等并发症发生。8 例均获随访，随访时间6 ～ 15 个月，平均12.3 个月。随访期间X 线片示无内固定失败和再脱位发生。术后6 个月肩关节功能根据Rockwood 等的评分标准评分为12 ～ 14 分，平均13.6 分；其中优7 例，良1 例，优良率100%。 结论 利用锁骨钩钢板治疗胸锁关节前脱位是一种安全、有效的方法。

Clavicular Hook Plate and Modified Weaver-Dunn Procedure for Tossy Ⅲ Type Old Acromioclavicular Joint Dislocation

目的　探讨锁骨钩钢板并改良Weaver-Dunn技术治疗Tossy Ⅲ型陈旧性肩锁关节脱位的疗效。 方法　2007年１月－2011年１月，对12例Tossy Ⅲ型陈旧性肩锁关节脱位采用锁骨钩钢板并改良Weaver-Dunn技术治疗。其中3例为肩锁关节脱位手术后再次发生脱位，2例合并锁骨远端骨折采用保守治疗无效，余7例单纯性陈旧性肩锁关节脱位未经任何检查治疗。 结果　术后患者切口均Ⅰ期愈合，无神经血管损伤、无切口感染等并发症。12例均获随访，随访时间12～30个月。X线片示锁骨复位情况良好，去除内固定后未见肩锁关节脱位复发。肩锁关节功能好，局部畸形消失，无肩周肌肉萎缩及肩周炎出现，锁骨位置良好。手术疗效评价：获优10例，良2例，优良率100%。 结论　锁骨钩钢板并改良Weaver-Dunn技术治疗Tossy Ⅲ型陈旧性肩锁关节脱位，复位固定满意，韧带重建易成功，肩关节功能恢复好，是一种治疗陈旧性肩锁关节脱位较理想的方法。

锁骨钩钢板治疗重度肩锁关节脱位15例

Long-term Clinical and Radiological Outcomes of Kirschner Tension Band Fixation versus Clavicular Hook Plate for RockwoodⅢ Acromioclavicular Joint Dislocation

目的　比较克氏针张力带与锁骨钩钢板治疗RockwoodⅢ型肩锁关节脱位的临床疗效。 方法　1999年1月－2007年3月，收治肩锁关节脱位患者29例，分别采用克氏针张力带联合喙锁韧带重建（克氏针组10例）和锁骨钩钢板（钢板组19例）治疗。其中男18例，女11例；年龄19～50岁，平均38.2岁。患者均为新鲜RockwoodⅢ型肩锁关节脱位，受伤至手术时间1～16 d，平均3 d。两组患者性别、年龄、受伤至手术时间等一般资料比较差异无统计学意义（P＞0.05）。进行两组患者术后临床及影像学评估比较。 结果　25例患者（克氏针组10例，钢板组15例）获随访，随访时间2～12年，平均6年。术后克氏针组发生克氏针弯曲5例、断裂1例；钢板组切口浅表感染2例，经换药后治愈，其余患者切口Ⅰ期愈合。两组患者肩锁关节均获得良好功能，组间比较差异无统计学意义（P＞0.05）。影像学方面：与克氏针组相比，在患肢负重位时钢板组喙锁间隙间距增加了23%（P＜0.05），非负重位两组间距差异无统计学意义（P＞0.05）。术后8～12周出现喙锁韧带钙化，钢板组12例、克氏针组2例（P＜0.05）。术后6个月出现肩锁关节骨性关节炎，钢板组2例、克氏针组1例（P＞0.05）。肩关节功能与影像学结果无相关性（r=0.096，P＞0.05）。 结论　克氏针张力带联合喙锁韧带重建和锁骨钩钢板固定治疗RockwoodⅢ型肩锁关节脱位均可获得良好的临床功能。与克氏针张力带相比，锁骨钩钢板固定具有手术操作简便、疗效确切、并发症少、能够早期康复锻炼等优点。

Clavicular hook plate with coracoclavicular ligament augmentation by suture anchor in the treatment of unstable distal clavicle fractures

ObjectiveTo evaluate the effectiveness of a clavicular hook plate with coracoclavicular ligament augmentation by suture anchor in the treatment of Neer types Ⅱ and Ⅴ distal clavicle fractures.MethodsBetween January 2010 and June 2016, 16 patients with Neer types Ⅱ and Ⅴ distal clavicle fractures were treated with clavicle hook plates and coracoclavicular ligament augmentation by suture anchor. There were 12 males and 4 females with an average age of 45.6 years (range, 14-81 years). The injury mechanism included falling in 10 cases, traffic accident injury in 2 cases, falling from height in 2 cases, and heavy object injury in 2 cases. The Neer classification of clavicle fractures included 2 cases of type Ⅱa, 13 cases of type Ⅱb, and 1 case of type Ⅴ. The injury severity score (ISS) was 6-29, with an average of 11.2. The time from injury to operation was 1-18 days, with an average of 6.4 days. The operation time, intraoperative blood loss, hospitalization stay, fracture healing, and postoperative complications were recorded; the disability of arm, shoulder, and hand (DASH) score, the shoulder joint Constant score, and the Oxford shoulder score (OSS) were used to evaluate the shoulder joint at last follow-up.ResultsAll operations were successfully completed. The operation time was 50-100 minutes, with an average of 75.6 minutes; intraoperative blood loss was 30-100 mL, with an average of 52.8 mL; hospitalization stay was 4-47 days, with an average of 13.7 days. All patients were followed up 1.2-7.5 years, with an average of 3.5 years. All clavicle fractures healed, and the healing time was 9.4-13.6 weeks, with an average of 11.9 weeks. No fracture nonunion, fracture displacement, failure of internal fixation, or incision infection, etc. occurred. Fifteen patients took out the hook plate after fracture healing and functional recovery, and 1 case refused to remove the hook plate from the second operation because of no obvious discomfort. At last follow-up, the DASH score was 0-13, with an average of 2.2; the shoulder joint Constant score was 90-100, with an average of 96.8; the OSS score was 12-14, with an average of 12.3.ConclusionClavicular hook plate with coracoclavicular ligament augmentation by suture anchor can help achieve good effectiveness with less postoperative complication in the treatment of Neer types Ⅱ and Ⅴ distal clavicular fractures.

Comparative study on effectiveness of clavicular hook plate fixation in treatment of acromioclavicular joint dislocation and distal clavicle fractures

Objective To compare the effectiveness of clavicular hook plate fixation in the treatment of acromioclavicular joint dislocation and distal clavicle fractures. Methods A clinical data of 90 patients, who underwent clavicular hook plate fixation between January 2014 and June 2023, was retrospectively analyzed. There were 40 patients with distal clavicle fractures (fracture group) and 50 with acromioclavicular joint dislocations (dislocation group). There was no significant difference in the baseline data of gender, age, cause of injury, side of injury, time from injury to operation, and constituent ratio of osteoporosis patients between the two groups (P>0.05). The time to remove the internal fixators and the occurrence of complications were recorded. Before removing the internal fixator and at 3 months after removing, the visual analogue scale (VAS) score was used to evaluate the degree of pain, and the mobility of the shoulder joint in forward flexion, elevation, and abduction was measured. Before removing the internal fixators, the Constant-Murley score and the University of California, Los Angeles (UCLA) score were used to evaluate the function of the shoulder joint. X-ray films of the shoulder joint were taken during follow-up to observe the occurrence of subacromial osteolysis, acromioclavicular joint osteoarthritis, and distal clavicle bone atrophy. Subgroup comparison was conducted between patients with and without subacromial osteolysis in the two groups. Results All incisions healed by first intention in both groups. All patients were followed up 1-9 years, with a median of 5 years; the difference in follow-up time between the two groups was not significant (P>0.05). During follow-up, subacromial osteolysis occurred in 74 cases, including 41 cases of typeⅠand 33 cases of type Ⅱ, distal clavicle bone atrophy in 15 cases, and acromioclavicular joint osteoarthritis in 8 cases. There were significant differences in the removal time of internal fixators, the incidence of bone atrophy, and the incidence of osteoarthritis between the two groups (P<0.05). There was no significant difference in the incidence of subacromial osteolysis (P>0.05). Before removing the internal fixators, there was no significant difference in VAS score, UCLA score, and Constant-Murley score between the two groups (P>0.05), while there were significant differences in shoulder joint range of motion in all directions (P<0.05). After removing the internal fixators, only the difference in elevation was significant (P<0.05). Within the group comparison, the VAS score and mobility of shoulder joint in abduction and elevation after removing the internal fixators were significantly superior to those before removing (P<0.05). In the fracture and dislocation groups, there was only a significant difference in plate length between the subgroup with and without subacromial osteolysis (P<0.05), while there was no significant difference in the above other indicators (P>0.05). Conclusion Clavicular hook plate is a good choice for treating acromioclavicular dislocation or distal clavicle fractures, but the incidence of subacromial osteolysis is higher, and the degree of bone resorption is more severe in fracture patients. After removal of the internal fixator, the shoulder functions significantly improve. It is recommended to remove the internal fixator as soon as possible within the allowable range of the condition.

锁骨钩钢板的临床应用及并发症分析

目的 总结以锁骨钩钢板内固定治疗Neer Ⅱ型锁骨远端骨折和Tossy Ⅲ型肩锁关节脱位的临床应用效果及并发症。 方法 2005 年8 月－ 2010 年2 月，以锁骨钩钢板内固定治疗Neer Ⅱ型锁骨远端骨折20 例和TossyⅢ型肩锁关节脱位28 例，对临床应用效果及术后并发症进行回顾性分析。其中男30 例，女18 例；年龄20 ～ 64 岁，平均33.5 岁。交通事故伤36 例，坠落伤12 例。受伤至手术时间为2 ～ 10 d，平均4.5 d。 结果 术后所有患者切口均Ⅰ期愈合。48 例均获随访，随访时间6 ～ 24 个月，平均13.6 个月。术后发生脱钩2 例、断钩1 例、锁骨应力性骨折1 例、异位骨化1 例、锁骨上皮神经损伤1 例、肩部出现异响不适3 例，均经再手术或对症处理治愈或好转。按洛杉矶加利福尼亚大学（UCLA）肩关节等级评分评定疗效，获优15 例，良27 例，可6 例，优良率87.5%。38 例于术后9 ～ 24 个月取出内固定物，未出现再骨折或肩锁关节再脱位情况。 结论 以锁骨钩钢板内固定治疗Neer Ⅱ型锁骨远端骨折和Tossy Ⅲ型肩锁关节脱位疗效良好，但需注意处理其并发症。