Objective To investigate the effectiveness of hinged external fixator with mini-plate to treat terrible triad of the elbow. Methods Between August 2008 and June 2011, 11 patients with terrible triad of the elbow were treated with hinged external fixator combined with mini-plate. There were 9 males and 2 females, aged 22-56 years (mean, 34 years). The injuries were caused by falling from height in 8 cases and traffic accident in 3 cases. All patients were closed injury. The time from injury to operation varied from 8 hours to 7 days (mean, 3.7 days). According to Mason classification standard, all radial head fractures were type IV and complicated by posterior dislocation of the elbow; according to Regan-Morrey classification standard, ulna coronary process fractures were type I in 3 cases, type II in 3 cases, and type III in 5 cases. Results All the patients achieved primary healing of incision after operation and no nerve injury occurred. The patients were followed up 12-20 months (mean, 15 months). Two cases had screw channel infection after 12 weeks of operation, and 1 case had mild heterotopic ossification of the elbow after 4 months of operation. X-ray films showed that all fractures healed from 8 to 20 weeks (mean, 16 weeks). No recurrent dislocation or instability of the elbow occurred. At 12 months after operation, the elbow range of motion (ROM) were 120-145° (mean, 135°) in flexion, 0-25° (mean, 10°) in extension, 50-90° (mean, 70°) in pronation, and 50-80° (mean, 60°) in supination. According to Mayo elbow function evaluation standard, the results were excellent in 5 cases, good in 4 cases, and fair in 2 cases, with an excellent and good rate of 81.8%. Conclusion Hinged external fixator with mini-plate can enhance postoperative stability of the elbow. This therapy is beneficial to early functional exercise and obviously decrease the disability rate caused by complex damage on the elbow.
Objective To review the injury mechanism and the treatment progress of terrible triad of the elbow, and to analyze the direction of further research. Methods Related literature concerning terrible triad of the elbow was extensively reviewed and comprehensively analyzed. Results The main treatment of terrible triad of the elbow is operation. The ultimate goal of treatment is to reconstruct sufficient stability of the elbow. The treatment includes fixation of the coronoid by suture, screw or plate; fixation of radial head by screw and plate, partial or complete replacement of the radial head; fixation of lateral collateral ligament and the medial collateral ligament by bone suture or anchors and the application of the external fixator. These surgical treatments have their own indications and advantages, most get satisfactory results. Conclusion Generally, surgery is needed to maintain the stability of the elbow for patients of terrible triad elbow. However, medial ligament repair or not, the choice of approach, and mechanism of injury still need further study.
【Abstract】 Objective To review the progress in pathoanatomy, diagnosis, and treatment of posterolateral rotatory instability (PLRI) of the elbow. Methods Related literature concerning PLRI of the elbow was extensively reviewed, comprehensive analysis was done. Results The lateral collateral ligament complex (LCLC), radial head, capitellum, and coronoid process are important constraints to PLRI. Muscle groups that cross the lateral elbow are secondary constraints to PLRI. Clinical examination includes lateral pivot-shift test, lateral pivot-shift apprehension test, chair sign, active floor push-up sign, tabletop relocation test, and posterolateral rotatory drawer test. Radiology, arthroscopy, and ultrasound can help diagnosis of PLRI. Reconstruction of bony fixation or soft tissue fixation can be used for treatment of injured LCLC. Conclusion The primary constraints to PLRI is LCLC. Ultrasound imaging is accurate for identification and measurement of normal LCLC. Therefore, ultrasound may prove valuable in assessment of abnormal lateral ulnar collateral ligaments. Reconstruction of soft tissue fixation, which can avoid iatrogenic fracture, is a selective treatment method.
【Abstract】 Objective To investigate the methods and effectiveness of arthroscopic poking reduction and percutaneousfixation of radial head fractures. Methods Between August 2002 and May 2010, 15 patients with radial head fractures weretreated using arthroscopic poking reduction and percutaneous fixation with a Kirschner wire. There were 11 males and 4 females with an average age of 29.6 years (range, 17-41 years). The locations were left side in 6 cases and right side in 9 cases. Injuries were caused by falling in 8 cases, by traffic accident in 4 cases, and by sports in 3 cases. The average time from injury to admission was 3.4 days (range, 1-8 days). Of them, 13 patients had Mason type II, and 2 patients had type III fractures. Accompanying injuries were lateral collateral ligament ruptures in 5 patients. Results The X-ray films confirmed good reduction and fracture heal ing. Incisions healed by first intention; no complication occurred, such as neurovascular injury, infection, or hardware failure. All patients were followed up 25 months on average (range, 12-32 months). The flexion-extension arc was (139.0 ± 7.9)° at last follow-up, showing no significant difference when compared with the contralateral (141.0 ± 5.1)° (t=1.146, P=0.271); the range of pronation and supination was (143.3 ± 7.0)° when compared with the contralateral (146.0 ± 4.7)° (t=1.948, P=0.072). The mean Mayo elbow performance score was 92 (range, 80-100); the mean Broberg-Morrey score was 95.2 (range, 85-100); the results were excellent in 12 cases and good in 3 cases. Conclusion Arthroscopic poking reduction and percutaneous fixation with a Kirschner wire offers accurate reduction, rel iable fixation, minimal trauma, rapid recovery, and lower morbidity for Mason type II and selective Mason type III radial head fractures.
Objective To investigate the method and effectiveness of operative treatment of anterior olecranon fracture-dislocation. Methods Between January 2007 and December 2010, 10 cases of anterior olecranon fracture-dislocation were treated. There were 6 males and 4 females with an average age of 46.1 years (range, 27-68 years). The injury was caused by traffic accident in 7 cases, falling from height in 2 cases, and falling in 1 case. Nine cases were fresh fracture and 1 case was old fracture. There were 9 cases of ulnar olecranon comminuted fracture and 1 case of simple oblique fracture. Associated fractures were Regan-Morrey type III coronoid process fractures in 5 cases, Mason type II radial head fracture in 1 case, and Mason type III radial head fracture in 1 case. Open reduction and internal fixation were performed in all cases: reconstruction plates were used in 4 cases, tension band and reconstruction plates in 5 cases, and tension band and one-third tubular plate in 1 case; bone graft was performed in 2 cases. Results All incisions healed by first intention. The patients were followed up 12-26 months (mean, 19.8 months). The X-ray films showed that fractures healing was achieved at 12-24 weeks (mean, 16.4 weeks). No failure of internal fixation, ulnohumeral joint instability, or traumatic arthritis occurred. At last follow-up, the elbow function score was 69-100 (mean, 89.1) according to the Broberg-Morrey evaluation criteria; the results were excellent in 4 cases, good in 4 cases, and fair in 2 cases with an excellent and good rate of 80%. The Disability of Arm-Shoulder-Hand (DASH) score was 0-22 (mean, 9). The visual analogue score (VAS) was 0-3 (mean, 0.5). Conclusion For anterior olecranon fracture-dislocation, an early and stable anatomic reconstruction of the trochlear notch of the ulna with plates and early active mobilization are given, the good functional results can be obtained.
Objective To investigate the effect of complete anterior bundle of medial collateral ligament (MCL) on the valgus stability of the elbow after reconstruction and to assess the efficacy of artificial tendon and interference screw in reconstruction the anterior bundle of MCL. Methods The bone-tendon of the elbow were made in 12 adult upper limb specimens. There were 8 males and 4 females, left side and right side in half. Using biomechanic ways and pressure sensitive film, the valgus laxity, the stress area of the humeroulnar joint, and the intra-articular pressure were measured in integrated anterior bundle of MCL (control group, n=12) and reconstructed anterior bundle of MCL with artificial tendon and interference screw (experimental group, n=12) in elbow flexion of 0, 30, 60, and 90°. Results There was no significant difference in the valgus laxity within group and between groups in different flexion degrees (P gt; 0.05). No significant difference was found in the intra-articular pressure in elbow flexion of 30, 60, and 90° within group and between groups (P gt; 0.05) except in elbow flexion of 0° (P lt; 0.05). The stress area of the humeroulnar joint in 0° flexion was significantly larger than that in 30, 60, and 90° flexion in the control group (P lt; 0.05), but no significant difference was found within group and between groups in the other flexion degrees (P gt; 0.05). Conclusion The anterior bundle of MCL has important significance for maintaining the valgus stability of the elbow, after reconstructing the anterior bundle by using artificial tendon and interference screw, the medial stability of elbow can be recovered immediately.
Objective To evaluate the short-term results of reconstruction of stiff elbow under arthroscopy technique in patients with elbow osteoarthritis. Methods Between March 2006 and March 2009, 38 cases of elbow osteoarthritis with contracture were treated under arthroscopy technique. There were 26 males and 12 females with an average age of 47.8 years (range, 26-66 years). Unilateral side was affected in all cases, including 13 cases at the left side and 25 at the right side with 30 patients on the dominant side. The disease duration was more than 6 months. X-ray examination showed that 31 patients had free body, and 28 had osteophytosis. Seven patients had ulnar neuritis. The arthroscopy functional reconstruction was performed including synovectomy, free body removal, and osteocapsular arthroplasty. Results All incisions healed by first intention. All patients were followed up 6-10 months (mean, 8 months). Transient radial nerve injury occurred in 1 case, re-adhesion of elbow joint in 1 case, and heterotopic ossification of brachial ulnar joint in 1 case at 6 months after operation. In 1 patient compl icated by ulnar neuritis, the disorder of ulnar nerve was not improved, nervous symptoms disappeared after the re-operation of ulnar nerve relaxation after 2 months. The range of motion, Mayo Elbow Performance Score (MEPS), and visual analogue scale (VAS) for pain at 3 and 6 months had significant differences when compared with those before operation (P lt; 0.05), but had no significant difference between two time points after operation (P gt; 0.05). According to MEPS functional criteria, the results were classified as excellent in 20 cases, good in 15 cases, fair in 2 cases, and poor in 1 case at 6 months after operation, and the excellent and good rate was 92.1%. No new free body or osteophytosis occurred after operation by X-ray examination. Conclusion The arthroscopy is an effective technique to reconstruct the function of stiff elbow, which can obviously improve the range of motion and the function of elbow joint, and has good short-term results.
Objective To explore the operation procedure and effectiveness of terrible triad of the elbow joint. Methods Between October 2006 and June 2010, 11 cases of closed terrible triad of the elbow joint were treated by operation. There were 8 males and 3 females with an average age of 32 years (range, 21-53 years). The mechanism of injury was fall ing from height in 4 cases and traffic accident in 7 cases. The time from injury to admission was 30 minutes to 9 days. According to Regan-Morrey classification for fractures of the ulnar coronoid, there were 5 cases of type I, 5 cases of type II, and 1case of type III; and according to Mason classification for fractures of the radial head, there were 4 cases of type I, 5 cases of type II, and 2 cases of type III. The elbow joint range of motion (ROM) was (63 ± 9)° at flexion and extension, and the forearm ROM was (71 ± 8)° at pronation and supination. All cases underwent reduction and fixation by lateral approach combined with medial approach according to McKeeps operation process. After operation, the affected l imb was immobil ized with plaster at elbow joint flexion of 90° and in forearm neutral position, then passive physical exercises were carried out, and finally active physical exercises were done after removing plaster at 4 weeks. Results All incisions healed by first intention. Eleven cases were followed up 7-27 months (14.5 months on average). The X-ray films showed good reduction, the cl inical heal ing time was 8-19 weeks with an average of 11 weeks. Mild ectopic ossification of the elbow joint occurred in 3 cases at 6 months after operation, mild degenerative change in 1 case at 18 months after operation. At last follow-up, the elbow joint ROM was (103 ± 14)° at flexion and extension, and the forearm ROM was (122 ± 13)° at pronation and supination, showing no significant difference when compared with the values of normal elbow joint (P gt; 0.05) and significant difference when compared with the preoperative values of affected elbow joint (P lt; 0.05). According to Mayo elbow performance score, the results were excellent in 5 cases, good in 5 cases, and fair in 1 case with an excellent and good rate of 90.9%. Conclusion The surgical treatment of terrible triad of the elbow joint can restore sufficiently elbow stabil ity, allow early motion postoperatively, and enhance the functional outcome.