Objective To summarize the effectiveness of Kirschner wire buckling combined with bone fixation in the treatment of metacarpal avulsion fracture. Methods The clinical data of 35 patients of metacarpal avulsion fracture admitted between March 2017 and June 2022 were retrospectively analyzed. There were 22 males and 13 females; the age ranged from 20 to 55 years, with an average of 31.6 years. There were 17 cases of the second metacarpal avulsion fracture, 6 cases of the fourth metacarpal avulsion fracture, and 12 cases of the fifth metacarpal avulsion fracture. The causes of injury included 21 cases of strangulation, 8 cases of sprain, and 6 cases of sports injury. X-ray film examination showed that the size of the avulsion fracture of metacarpal bone ranged from 0.30 cm×0.20 cm to 0.55 cm×0.45 cm. The total active motion (TAM) of the injured finger before operation was (154.00±17.38)°. The time from injury to operation was 3-10 days, with an average of 5.8 days. Follow-up regularly after operation, X-ray film and CT examination were performed to evaluate fracture healing and TAM of injured finger was measured. The finger function was evaluated by the trial standard of upper limb function evaluation of Hand Surgery Society of Chinese Medical Association. Results All the incisions healed by first intention. All 35 patients were followed up 9-36 months, with an average of 28 months. All metacarpal avulsion fractures achieved bony healing, and the healing time was 4-6 weeks, with an average of 4.8 weeks. The metacarpophalangeal joint of the patient was stable, without stiffness, and the flexion and extension activities were good. At last follow-up, the TAM of the injured finger reached (261.88±6.23)°, which was significantly different from that before operation (t=−35.351, P<0.001). The finger function was evaluated according to the trial standard of upper limb function evaluation of the Society of Hand Surgery of Chinese Medical Association, and 33 cases were excellent and 2 cases were good, with an excellent and good rate of 100%. Conclusion The treatment of metacarpal avulsion fracture with Kirschner wire buckling combined with bone fixation has the advantages of less trauma, firm fixation, and less interference to the soft tissue around metacarpophalangeal joints, which is a good alternative method for the metacarpal avulsion fracture.
ObjectiveTo evaluate the effectiveness of arthroscopically assisted treatment of posterior cruciate ligament (PCL) tibial eminence avulsion fractures associated with meniscus posterior horn tear. MethodsBetween January 2012 and December 2014, 21 patients with PCL avulsion fracture and meniscus posterior horn tear were arthroscopically treated with polyester suture and hollow screw fixation. There were 10 males (10 knees) and 11 females (11 knees), aged 14-53 years (mean, 35.7 years). The causes included sport injury in 11 cases, traffic accident injury in 9 cases, and daily life injury in 1 case. Based on the anteroposterior and lateral X-ray films, CT, and MRI, PCL avulsion fractures were diagnosed, and 2 cases had anterior cruciate ligament avulsion fractures. The results of posterior drawer test were positive in all patients, with no end point in 14 cases and with soft end point in 7 cases; all patients showed tibial sink. The preoperative International Knee Documentation Committee (IKDC) score and Lysholm score were 46.5±5.5 and 43.3±4.5 respectively. The time from injury to operation was 6-22 days (mean, 10 days). ResultsThe operation time was 60-100 minutes (mean, 75 minutes). Primary healing of incision was obtained in all patients, without no complication of infection. The mean follow-up time was 27.4 months (range, 12-46 months). The results of posterior drawer test were negative in 19 cases, and positive in 2 cases (having hard end point). Tibial sink disappeared. At last follow-up, X-ray film showed good healing of fracture, and no displacement. The patients had no locking knee, snapping or tenderness of joint space, and the Mcmurray sign was negative; the IKDC score and Lysholm score were significantly improved to 92.0±2.5 and 92.7±2.6 respectively (t=-39.903, P=0.000; t=-43.242, P=0.000). The range of motion was normal in 20 patients (0-130°) except 1 patient having limited flexion (0-80°), whose range of motion returned to 0-120° after release. ConclusionThe arthroscopic fixation technique has satisfactory results for the reduction and fixation of PCL avulsion fracture associated with meniscus posterior horn tear because of easy operation, firm fixation, and economic price.
ObjectiveTo study the biomechanical stability of neckwear-knot-loop-ligature fixation for tibial eminence avulsion fractures by comparing with cannulated screw fixation and suture anchor fixation. MethodsTwenty-four fresh porcine knee joints were selected. After the model of tibial eminence avulsion fracture (type Ⅲ) was made, 24 samples were randomly divided into 3 groups: neckwear-knot-loop-ligature group (group A), cannulated screw group (group B), and suture anchor group (group C), 8 samples in each group. The Universal electromagnetic and mechanical testing machines were used for the biomechanical tests. After 200 cyclic tests, pull-out test was done until fixation failure. The maximum failure load, yield load, stiffness, and displacement were measured. ResultsFailure mode: the displacement was beyond limit in 8 samples of group A; screws extraction (5 samples) and bone fragment re-fracture (3 samples) were observed in group B; and suture anchor extraction (4 samples), suture rupture (3 samples), and suture thread cutting (1 sample) were found in group C. Biomechanical test: From groups A to C, the maximum failure load and yield load showed significant decreasing tendency (P<0.05), but the displacements showed significant increasing tendency (P<0.05). The stiffness also gradually decreased, but differences was not significant (P>0.05). ConclusionCompared with cannulated screw and suture anchor, neckwear-knot-loop-ligature fixation for tibial eminence avulsion fracture has good biomechanical performance and the advantages of firm fixation and simple operation.
ObjectiveTo evaluate the clinical outcome of stellated plate fixation of olecranal avulsion fracture. MethodsA retrospective analysis was made on the clinical data from 24 cases of olecranal avulsion fracture treated with stellated plate between April 2007 and April 2012. There were 13 males and 11 females, with an average age of 32 years (range, 18-65 years). The causes of injury included falling injury (14 cases), sports injury (7 cases), and machine injury (3 cases). The left elbow was involved in 4 cases and the right side in 20 cases. The average disease duration was 11 hours (range, 3 hours-2 days). According to Colton's classification criteria, all cases were classified as type Ⅱ A (avulsion fracture). One case had supracondylar humeral avulsion fracture, and 15 cases had triceps tendon tears. ResultsAll the cases obtained healing of incision by first intention, without infection and ulnar nerve injury. The average follow-up period was 24 months (range, 18-48 months). All fractures healed after 6-10 weeks (mean, 7 weeks). According to Morrey's elbow performance score, the results were excellent in 17 cases, good in 4 cases, and fair in 3 cases, with an excellent and good rate of 87.5%. There was no significant difference in the elbow range of motion (ROM) between the injured side (136.0±16.2)° and normal side (143.1±2.9)° (t=2.007, P=0.052). The ROM of normal elbow was significantly larger than that of the injured side in 3 patients who achieved fair results (t=2.820, P=0.048), but no significant difference was found in patients who achieved excellent and good results (P>0.05). ConclusionThe stellated plate has good clinical outcome in treatment of olecranal avulsion fracture, which has advantages of simple operation, firm fixation, and early functional exercise.
Objective To compare the effectiveness of arthroscopic screw and suture fixations in treatment of anterior cruciate ligament tibial eminence avulsion fractures. Methods Between January 2002 and January 2009, 43 patients with freshanterior cruciate ligament tibial eminence avulsion fracture were treated, which were rated as types II and III according to Meyers- McKeever-Zaricznyj classification. Fractures were fixed with either screw (screw group, n=21) or nonabsorbable suture (suture group, n=22). There was no significant difference in sex, age, disease duration, and fracture type between 2 groups (P gt; 0.05). The range of motion (ROM) and Lysholm score were compared between 2 groups, and the knee stabil ity was evaluated based on the Lachman test and KT-2000 measurement. Results The operation time was 48-60 minutes (mean, 51.6 minutes) in the screw group, and 55-68 minutes (mean, 63.2 minutes) in the suture group, showing significant difference (t=4.645, P=0.032). Incisions healed by first intention and no compl ication occurred in 2 groups. All patients were followed up (5.7 ± 0.6) years in the screw group and (5.3 ± 0.5) years in the suture group. The fracture healed completely in both groups; the heal ing time was (3.3 ± 0.6) months in the screw group and (3.2 ± 0.4) months in the suture group, showing significant difference (t=3.723, P=0.019). Between the screw group and the suture group, no significant difference was found in ROM [(128.6 ± 10.1)° vs. (130.2 ± 14.1)°, P gt; 0.05] and Lysholm score (94.6 ± 14.5 vs. 95.1 ± 17.2, P gt; 0.05). The stabil ities based on KT-2000 measurement were also similar between 2 groups at last follow-up [(0.9 ± 0.3) mm vs. (1.0 ± 0.4) mm, P gt; 0.05]. Lachman test of 2 groups were negative. Conclusion Boththe screw and nonabsorbable suture fixation techniques for anterior cruciate l igament tibial eminence avulsion fracture (type II or III) have good results in terms of functional outcome and stabil ity. However, some patients show flexion contractures of 5° or 10°.
Objective To investigate the effectiveness of percutaneous reduction by leverage and fixation using nonabsorbable suture with neckwear knot loop l igature to treat tibial intercondylar eminence avulsion fractures under the arthroscope. Methods Between February 2003 and December 2008, 28 patients with tibial intercondylar eminence avulsion fractures were treated, including 16 left knees and 12 right knees. There were 15 males and 13 females with an average age of19.5 years (range, 14-45 years). The injury causes included traffic accident injury in 11 cases, sport injury in 10 cases, and sprain injury in 7 cases. Based on Meyers-McKeever classification, there were 18 cases of type III and 10 cases of type IV. The X-ray films showed the tibial intercondylar eminence displaced fracture. The mean time between trauma and operation was 7 days (range, 4-12 days). All patients were treated surgically with an arthroscopically assisted reduction by leverage and fixation using 5-0 Ethibond suture with neckwear knot loop l igature. Results All incisions healed by first intention without infection or injuries of nerves and vessels. Twenty-eight patients were followed up 26 months on average (range, 12-66 months). The X-ray films showed fracture heal ing within 9-13 weeks (mean, 11 weeks). At last follow-up, all patients were able to return to their pre-injury activity and daily l ife. The knee joint was stable with no l imp or impingement of intercondylar fossa. The knee joint range of motion was 0-130°. The results of Lachman and anterior drawer tests were negative in all patients. At last follow-up, the Lysholm score was 93.5 ± 2.5, showing significant difference when compared with the preoperative one (29.0±2.2, t=53.000, P=0.000). Conclusion Percutaneous reduction by leverage and fixation using nonabsorbable suture with neckwear knot loop l igature is minimally invasive and satisfied reduction and fixation in treating the tibial intercondylar eminence avulsion fracture under the arthroscope, so it is benefit for early functional exercises, and can achieve excellent results.
Objective To investigate the early effectiveness of three-point suture technique in treatment of anterior cruciate ligament (ACL) tibial eminence avulsion fracture by arthroscopy. Methods Between January 2016 and December 2017, 12 patients with ACL tibial eminence avulsion fractures underwent arthroscopic fixation of avulsion fractures with Ethibon suture using three-point suture technique. There were 9 males and 3 females, with an average of 36.4 years (range, 18-50 years). The fracture caused by traffic accident in 10 cases and sports in 2 cases. Among them, 1 patient was old fracture and 11 was fresh fracture. According to the modified Meyers-McKeever classification criteria, the fractures were rated as type Ⅲ in 7 cases and type Ⅳ in 5 cases. There were 2 cases of medial collateral ligament injury and medial meniscus injury. The preoperative International Knee Documentation Committee (IKDC) score was 37.9±4.7 and Lysholm score was 46.0±3.7. Results All operations completed smoothly. The operation time was 45-70 minutes (mean, 61.3 minutes). The incisions healed by first intention in all patients. The hospitalization stays ranged from 4 to 9 days (mean, 5 days). All patients were followed up 3-20 months (mean, 9.3 months). The anterior drawer test, Lachman test, and axis shift test in all patients were negative after operation. At last follow-up, the IKDC score was 89.7±2.5 and Lysholm score was 90.2±1.9, which were significantly higher than those before operation (t=–30.94, P=0.00; t=–33.03, P=0.00). At last follow-up, the X-ray films showed 9 cases of fracture anatomical reduction and 3 cases of almost anatomical reduction, and 12 cases of fracture healing. Conclusion For ACL tibial eminence avulsion fracture, arthroscopic three-point suture technique can effectively restore the stability of knee joint and obtain satisfactory early effectiveness.
ObjectiveTo investigate the surgical technique and effectiveness of arthroscopic ULTRA-Braid suture plane fixation for anterior cruciate ligament (ACL) tibial eminence avulsion fractures. MethodsBetween June 2012 and October 2014, 16 cases of ACL tibial eminence avulsion fracture were treated with ULTRA-Braid suture plane fixation under arthroscopy. There were 10 males and 6 females, aged from 17 to 38 years (mean, 25.8 years). The left knee was involved in 5 cases and the right knee in 11 cases. The causes were traffic accident injury in 9 cases, falling from height injury in 4 cases, and sports injury in 3 cases. The average interval from injury to operation was 7 days (range, 5-10 days) except 1 patient who received operation at 6 weeks after injury. The knee joint swelling was obvious; the result of Lachman test was positive; and the knee joint Lysholm score was 45.38±9.87. According to classification standard introduced by Meyers-McKeever-Zaricznyj, 7 cases were rated as type Ⅱ, 8 cases as type Ⅲ, and 1 case as type Ⅳ, excluding ligament and meniscus injury. ResultsAll the incisions healed by first intention. The patients received follow-up of 6-18 months (mean, 10 months). The postoperative X-ray and CT showed anatomic reduction (12 cases) or near anatomic reduction (4 cases); all fractures healed at 6 months after operation. The result of Lachman test was negative in the other 15 patients except 1 patient (Ⅱ degree). One patient had slight knee pain at 6 months postoperatively, and pain symptom disappeared after 1 year; the other cases resumed daily activities. Lysholm score at last follow-up was 98.13±2.34, showing significant difference when compared with preoperative score (t=-20.801, P=0.000). ConclusionArthroscopic ULTRA-Braid suture plane fixation for ACL tibial eminence avulsion fractures is an effective procedure with the advantages of minimal trauma, reliable fixation, satisfactory functional recovery, and simultaneously avoiding the second surgery.
ObjectiveTo analyze the possible injury mechanisms in patients with dorsal avulsion fracture of the capitellum combined with medial or posterior medial dislocation of the elbow joint, and to discuss their treatment and prognosis. Methods Retrospective analysis was made on the clinical data of 4 patients with dorsal avulsion fracture of the capitellum combined with medial or posterior medial dislocation of the elbow joint admitted between September 2014 and September 2020, including 3 males and 1 female with an average age of 20.7 years (range, 13-32 years). There were 2 cases of dorsal avulsion fracture of the capitellum combined with medial dislocation of the elbow joint and 2 cases of dorsal avulsion fracture of the capitellum and anterior medial fracture of the coronoid process combined with posterior medial subluxation of the elbow joint. Closed reduction was performed in 3 patients with fresh fracture combined with dislocation, then 2 cases were fixed with tension band and 1 case was fixed with tension band combined with Acumed coronoid anatomic plate. And in patient with old fracture nonunion, the coronoid process was fixed with 1 screw, then the humeral sclerotic bone mass was removed, and finally the lateral collateral ligament was repaired and a hinged external fixator was added. Results All the incisions healed by first intention without early complications such as infection or peripheral nerve injury. The 4 patients were followed up 13-30 months (mean, 20.8 months). The fractures all healed with a healing time of 70-90 days (mean, 79.5 days). At 6 months after operation, heterotopic ossification was seen in the posterior aspect of the right elbow joint in 1 case, and the alkaline phosphatase level was normal (67 U/L); the tension band was removed to clear the heterotopic ossification and the elbow joint was released. The rest of the patients had no heterotopic ossification. At last follow-up, all patients had good functional recovery of the elbow joint, with a Mayo score of 85-100 (mean, 92.5), and the excellent and good rate was 100%. The elbow flexion range of motion was 120°-135°, the extension range of motion was 10°-20°, and the pronation and supination range of motion were all 75°-85°. Conclusion Dorsal avulsion fractures of the capitellum combined with medial or posterior medial dislocation of the elbow may be due to simple varus stress. If an anteromedial coronoid facet fracture also occurs, it may be for the varus posteromedial rotatory instability, which is the opposite mechanism to that of an Osborne-Cotterill lesion. For fresh dorsal avulsion fractures of the capitellum, tension band fixation can be used with good results.
ObjectiveTo investigate the effectiveness of open reduction by mini incision and absorbable screw internal fixation for the treatment of anterior cruciate ligament (ACL) tibial eminence avulsion fracture. MethodsBetween January 2006 and July 2012, 90 patients (90 knees) with ACL tibial eminence avulsion fracture were treated. There were 58 males and 32 females, aged from 10 to 58 years with an average of 33.7 years. The causes of injury were traffic accident injury in 60 cases, sports injury in 22 cases, and falling injury in 8 cases. The disease duration was 1-365 days with a median of 106 days. Combined injuries included 14 cases of meniscus injury, 5 cases of medial collateral ligament injury, and 3 cases of avulsion fracture of the anterior horn of the lateral meniscus. All patients underwent open reduction by mini incision and internal fixation with absorbable screw. Postoperative rehabilitation exercise was performed. ResultsTwo patients had delayed healing of incision, and others obtained primary healing. All the patients were followed up 6-72 months (mean, 40.1 months). X-ray examination showed that bone union was achieved in all patients at 3-12 months after operation; nail tail came off in 7 cases at 4-13 months after operation, and the nail tail was taken out under arthroscopy. At 6-12 months after operation, the range of motion (ROM), Tegner score, Lysholm score, and International Knee Documentation Committee (IKDC) score were significantly increased when compared with preoperative ones (P < 0.05). ConclusionA combination of open reduction by mini incision and absorbable screw internal fixation for the treatment of ACL tibial eminence avulsion fracture has the advantages of easy operation, firm fixation, and satisfactory functional rehabilitation, so it is a safe and effective method for the treatment of ACL tibial eminence avulsion fracture.