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PubMed2005

Internal fixation of proximal humerus fractures using the locking proximal humerus plate.

OBJECTIVE: Stable fixation of unstable proximal humerus fractures until bony consolidation. Early mobilization of the shoulder and early active rehabilitation program to ensure a good functional outcome and a good restoration of the activities of daily living. INDICATIONS: Unstable two-, three- and four-part fractures of the proximal humerus (classified according to the AO classification as: 11-A2, A3, B1, B2, B3, C1, C2, C3). Nonunions of the proximal humerus, especially at the neck. Pathologic fractures of the proximal humerus. CONTRAINDICATIONS: Comminuted humeral head fractures in old patients, which cannot be reconstructed adequately. Proximal humerus fractures in the immature patient. Local infection after previous surgery. SURGICAL TECHNIQUE: Deltopectoral approach. Blunt mobilization of the deltoid muscle. Suture loops through the supraspinatus tendon, the infraspinatus tendon, and the subscapularis tendon close to their bony insertion. Careful indirect reduction of the fracture fragments without further damage to their blood supply. Correct positioning of the LPHP (Locking Proximal Humerus Plate) on the lateral side of the humerus, approximately 5 mm below the tip of the greater tuberosity. Indirect approximation of the subcapital fracture component to the plate, by tightening a standard 3.5-mm cortical bone screw inserted into the first hole distal to the metaphyseal fracture line. Temporary fixation of the plate with 1.8-mm Kirschner wires. Fixed-angle fixation of the plate to the bone, using locking screws. Additional stabilization of the tuberosities to the plate with suture loops. RESULTS: Between January 1, 1997 and April 30, 2002, 64 patients with acute fractures of the proximal humerus were treated with fixed-angle plating at the UKH Graz. 36 patients meeting the inclusion criteria (that is primary operative stabilization within 14 days after trauma in a standardized way and minimal follow-up period of 12 months) were assessed 31 months after surgery on average, using the Constant Score and the DASH Score. The mean age of the 22 women and 14 men was 57.5 years (21-78 years). According to the AO classification eight fractures were classified as 11-A3, one fracture as B1, five fractures as B2, three fractures as B3, one fracture as C1, 16 fractures as C2, and two fractures as C3. A mean Constant Score of 62.6 points and an age-related Constant Score of 80.7% on average, as well as a DASH Score of 18.0 points were obtained, constituting a satisfactory result in three quarters of all patients. Complications observed were two humeral head necroses, one partial necrosis after a head-splitting fracture with nevertheless good clinical result, and a deep infection in two cases. Breakage of the plate was seen in one patient with an A3.3 fracture without medial buttress; no further surgery was necessary; the fracture healed after a short period of immobilization.

Adult↗
PubMedDate not supplied

Long head of the biceps pathology as a cause of anterior shoulder pain after shoulder arthroplasty.

The use of shoulder arthroplasty has been increasing over the last decade, with nearly 20,000 shoulder arthroplasties being performed each year. Although many patients have excellent results, there exists a subset of patients in whom anterior catching shoulder pain develops after arthroplasty. The purpose of this study was to examine this group of patients and explore treatment options and outcomes for this condition. We undertook a review of 8 shoulders in 7 patients who were treated for anterior shoulder pain radiating into the biceps muscle after shoulder arthroplasty. Three patients had a hemiarthroplasty for fracture, and five had a total shoulder arthroplasty. All patients had anterior shoulder pain with physical examination findings consistent with biceps tendon pathology. Definitive diagnosis and treatment consisted of either arthroscopy, in 7 of 8 shoulders, or an open procedure, in 1 of 8 shoulders. The range of motion improved in all shoulders. The hemiarthroplasty group showed an increase in flexion of 36 degrees (range, 68 degrees -104 degrees ), external rotation of 23 degrees (range, 11 degrees -34 degrees ), and internal rotation to L4. The total shoulder group demonstrated an increase in flexion of 50 degrees (range, 66 degrees -166 degrees ), external rotation of 27 degrees (range, 22 degrees -39 degrees ), and internal rotation to L3. The Hospital for Special Surgery score improved in all shoulders, with all patients being satisfied with their final outcome. Pain scores improved from a mean of 6.9 (range, 4-9) preoperatively to 1.4 (range, 0.5-2) postoperatively on a scale of 1 to 10, with 10 indicating the most pain. The role of the biceps tendon in the pathology of anterior shoulder pain after shoulder arthroplasty appears to be consistent with fibrosis and inflammation. Initial results, achieved with arthroscopic debridement or tenodesis, were encouraging.

Aged↗
PubMedDate not supplied

The anatomy of the glenohumeral ligamentous complex and its contribution to anterior shoulder stability.

One hundred four enbalmed cadaver shoulders were evaluated. With a dorsal approach we opened the dorsal capsule after resecting the infraspinatus and teres minor muscles. For reaching the anterior capsule and the glenohumeral ligaments, the humeral head was resected. In this way we could quantify and qualify the glenohumeral ligaments and classify the synovial recesses based on the classification system of DePalma into type I to VI. Secondary signs of shoulder instability were documented. The superior glenohumeral ligament was missing in 6 (5.8%) shoulders, the middle glenohumeral ligament in 16 (15.4%) shoulders, and the inferior glenohumeral ligament in 7 (6.8%) shoulders. Most of the synovial recesses belonged to group I (38.5%) and III (46.2%). As a secondary sign of instability four shoulders had a Hill-Sachs fracture and a bony Bankart lesion. All four shoulders had no middle glenohumeral ligament and a large anterior type IV recess.

Aged↗
PubMed1995

The radiology of total shoulder replacement.

The indications for total shoulder replacement and the radiologic evaluation prior to the operation are discussed in depth in this article. Different approaches to clinical problems are also discussed and illustrated, as are normal findings. This is followed by a discussion of the complications of shoulder reconstruction, including infection, fractures, and heterotopic bone formation. A review of the results is also given followed by a brief mention of a number of other orthopedic shoulder devices and plates.

Humans↗
PubMed1978

Relieving pain with nerve blocks.

Pain syndromes in elderly patients are seldom psychogenic or due merely to "old age." Careful differential diagnosis is important, as judicious use of nerve blocks as adjunctive therapy often can relieve pain and restore activity. In the acute phase of shoulder pain, intrabursal injection of local anesthetic and steroid inhibits the inflammatory process. In the later stages, suprascapular nerve block relieves pain and interrupts afferent pain pathways. The occipital pain and headache of cervical arthritis also often respond to injection of 2 to 3 ml of long-acting anesthetic into the greater and lesser occipital nerves at the sites where they pierce the trapezius. Minor causalgia, shoulder-arm syndrome, or chronic traumatic edema may follow either forearm fracture or inflammation around the shoulder joint. Five stellate ganglion blocks with 1% lidocaine on alternate days, followed by 3 to 4 months of active and passive exercise, is the most effective treatment. This regimen usually produces a fully functional extremity. In degenerative disk disease, osteoarthritis, and metastatic disease, the cause of back pain is essentially the same--edema and inflammation of nerve roots at the intervertebral foramina. Injection of local anesthetic and steroid into the epidural space usually reduces swelling and inflammation. Patients are evaluated in 2 weeks and reblocked if improvement has plateaued. Pain relief most often is prompt and persists for an indefinite period.

Acute Disease↗
PubMed1993

[Nuclear magnetic tomography in shoulder dislocation].

Sixty-two patients with anterior shoulder dislocations were examined by magnetic resonance imaging (MRI). After a primary dislocation, 30 patients showed 23 (77%) tears of the glenoid labrum, 13 (45%) anterior-inferior separation of the capsula, 24 (83%) Hill-Sachs lesions, 6 fractures of the greater tuberosity and 4 glenoid rim fractures. Thirty-two patients with recurrent shoulder dislocation had 14 (44%) tears and 15 (47%) defects of the glenoid labrum, 16 (50%) anterior-inferior separation of the capsula, 28 (88%) Hill-Sachs lesions and 3 glenoid rim fractures. MRI permits complete non-invasive documentation of glenohumeral instability if joint effusion is present. In the absence of joint effusion, diagnostic accuracy can be improved by application of a contrast medium.

Adolescent↗
PubMed1999

[Migration of Kirschner wires after surgical stabilization of injuries in the area of the shoulder--4 case reports].

Internal fixation is recommended for displaced and unstable fractures of the lateral clavicle and fractures involving the proximal humerus. Kirschner wires, although recommended in the orthopedic literature bear the risk of wire breakage and migration. 4 cases with serious and potentially hazardous complications are presented. All reported complications occurred years after the operative treatment without clinical symptoms. Regular postoperative follow-ups and early hardware removal after fracture healing is recommended.

Adult↗
PubMed2005

Proximal humeral fractures treated with arthroplasty.

OBJECTIVE: To explore arthroplasty in treating 3- and 4-part fractures of the proximal humerus. METHODS: A total of 132 patients with proximal humeral fractures were treated in our hospital from July 1997 to February 2003. According to Neer's classification, the fractures of 45 patients (14 males and 31 females, aged 31-78 years, 56.1 years+/-7.8 years on an average) belonged to 3- or 4-part fractures (10 patients with 4-part fracture and 35 with 3-part comminuted fracture) and they were treated with shoulder joint arthroplasty. Unipolar prosthesis replacement of the head of humerus was made in 28 cases, while bipolar prosthesis replacement in 2 cases and total shoulder joint replacement in 15 cases. RESULTS: During the follow-up period (range: 12-72 months, mean: 37.3 months+/-4.1 months), among the 45 patients who suffered from fractures of the proximal humerus and underwent arthroplasty surgery, 44 patients (97.8%) had no postoperative pain and were satisfied with the active range of motion and with the whole treatment results. And radiography showed that the prostheses were at their good position. One patient had postoperative pain because he had so narrow medullary cavity that the humeral prosthesis could not be put deeply enough and the prosthesis head was a little higher over the anatomic level. He did not have good postoperative active range of motion, either. Then he received a review surgery and got satisfied results. Temporary shoulder stiffness was observed in one patient. Manual release of these adhesions improved the shoulder function. No evidence of nonunion of the fracture segments around the humeral prosthesis stem was found. CONCLUSIONS: Shoulder arthroplasty is a dependable method to restore the comfort and function of the shoulder joints of the patients with 3- or 4-part fractures of the proximal humerus.

Adult↗
PubMedDate not supplied

Transitory percutaneous pinning in fractures of the proximal humerus.

We report 31 patients with displaced fractures of the proximal humerus treated by transitory percutaneous pinning. The Neer fracture classification was used; there were 7 two-part, 20 three-part, and 4 four-part fractures. The Constant score was used for evaluation of the results; the mean score was 80 points. The high mean age of our patients (68 years) diminished the score because of the 25 points attributed to the strength. Avascular necrosis was observed in 5 cases: 2 three-part and 3 four-part fractures. Transitory percutaneous pinning is a good technique for the management of displaced 3-part fractures of the proximal humerus even in the older population, keeping in mind that the shoulder will tolerate a moderate residual deformity without changing the functional outcome significantly. Transitory percutaneous pinning, on the other hand, is not a satisfactory method for the management of 4-part fractures.

Adult↗
PubMed2007

Outcomes of shoulder arthroplasty in Olmsted County, Minnesota: a population-based study.

Most studies on shoulder arthroplasty include a diverse group of patients presenting to a tertiary care center. Little information is available regarding outcomes in a community setting. We reviewed 98 residents (110 shoulders) of Olmsted County, Minnesota who had shoulder arthroplasties from 1976 to 2000. There were 65 total shoulder arthroplasties and 45 humeral head replacements. The most common indications were osteoarthritis for total shoulder arthroplasties (48/65) and acute fracture for hemiarthroplasties (27/45). The Neer ratings were excellent or satisfactory in 92% of total shoulder arthroplasties and 56% of hemiarthroplasties. The 10-year survival rate was 96%. The mean postoperative active forward elevation was greater in patients who had a total shoulder arthroplasty (132 degrees) compared with a hemiarthroplasty (113 degrees), as was external rotation (total shoulder arthroplasties = 58 degrees, humeral head replacements = 38 degrees). The outcomes for total shoulder arthroplasty and hemiarthroplasty compared favorably with outcomes reported in the literature. There was a high rate of satisfactory or excellent results after total shoulder arthroplasty for osteoarthritis. Hemiarthroplasty offered less satisfactory results, most likely related to the use of this procedure for trauma. This information will assist the community surgeon in counseling patients and weighing the risks and benefits of a shoulder arthroplasty.

Adult↗
PubMed1976

Complications of fractures of the clavicle.

Most fractures of the clavicle unite without incident. The number and diversity of the methods of treatment in use suggest that in most cases good results are obtained despite medical supervision. Yet occasionally complications do arise. This paper describes two such cases and reviews the literature in search of a common factor to account for these complications. Cases presenting with early and late complications of fractures of the clavicle are described and the literature on the subject reviewed. The incidence of complications is highest in cases of direct violence to the shoulder region producing comminuted fractures. Surgical management is outlined in general terms. It is suggested that more prolonged and rigorous immobilization of cases "at risk" may reduce the incidence of non-union and prevent late neurovascular complications.

Adolescent↗
PubMed1987

Arthrography in evaluation of birth injuries of the shoulder.

Birth injuries of the shoulder and proximal humerus of infants can be difficult to evaluate on plain radiographs because of lack of ossification in the proximal humeral epiphysis. We here describe arthrography of the infant shoulder and advocate it as a useful diagnostic procedure in the evaluation of humeral fractures and brachial palsies. Two infants with birth injuries of the shoulder are described. The value of dynamic fluoroscopic evaluation of the injured joint in conjunction with arthrography is illustrated in evaluation of a brachial plexus palsy.

Arthrography↗
PubMed1993

[4-fragment fracture of the proximal upper arm].

Four-fragment fractures have to be accorded great importance because they are so severe. The morphology allows differentiation of two types, the dorsolateral fracture type and the impacted fracture type. Over a 4-year time span, 13 of these fractures were treated with minimal osteosynthesis. This involve the open anatomical reduction and allogeneic spongiosa grafting and retention of the fracture with screws and, if necessary, K-wires and tension banding. After an average of 26.3 months the shoulder function was evaluated using the CONSTANT score. The dorsolateral fractures were scored of 87.2 while the impacted fractures were scored at 88.8. No necrosis of the humeral head was found. These good results show that after four-fragment fractures primary reconstruction of the humeral head should be preferred over primary prosthetic replacement.

Adult↗
PubMed1985

CT findings in normal and dislocating shoulders.

Computed tomographic (CT) scans of the shoulders of 10 normal individuals and six patients with a history of recent or recurrent shoulder dislocation were reviewed. In normal individuals, the surface of the glenoid was smooth and was always within 10 degrees of being perpendicular to the body of the scapula. As scans progressed from cephalad to caudad, the glenoid surface twisted and faced more anteriorly. The center of the humeral head always projected within the central one-third of the glenoid fossa. In the patients with dislocations, CT scans depicted a variety of lesions, including: bony abnormalities of the glenoid surface (fragmentation, fracture, irregularity) in three patients; abnormal glenoid-scapular angles in two; loose bodies in two; subtle subluxation, coracoid fracture, cystic humeral defect, and soft-tissue calcification in one patient each. Scans without intra-articular contrast could not demonstrate capsular or labral abnormalities. CT images are helpful in the pre- and postoperative assessment of some patients with shoulder dislocation.

Adult↗
PubMed2005

The effect of shoulder arthroplasty on humeral strength: an in vitro biomechanical investigation.

BACKGROUND: Periprosthetic humeral fractures are a serious complication of shoulder arthroplasty. While adequate reaming of the canal and insertion of an oversized implant optimizes fit, such maneuvers also weaken the bone and predispose it to fracture. METHODS: The impact of the humeral arthroplasty was assessed in vitro on human cadaveric specimens. Strain gauges were attached to the distal diaphyses and the specimens were mounted in a torsion-loading fixture throughout the tests. An initial series examined the effect of reaming of the canal to its clinically appropriate diameter using uniaxial strain gauges. A second series utilized strain rosettes to evaluate the cumulative effects of reaming, broaching, and implant insertion. FINDINGS: Reaming of the canal to its clinically appropriate diameter significantly increased (P=0.007) uniaxial strain measurements by a mean of 30% with five of eight specimens showing increases of over 49% on at least one of four diaphyseal locations. In the second series, the surface strain was significantly affected by arthroplasty (P<0.008). Post-hoc analysis showed that the maximum in-plane shear strain following implant insertion was significantly increased relative to strain levels following reaming and broaching (P<0.009). The direction of the principal strain axes did not significantly change (P>0.46). Unexpected decreases in some strain measurements were observed as the arthroplasty procedure progressed perhaps reflecting overt mechanical failure within the humeral shaft. INTERPRETATION: The strain increase following reaming suggests a reduction in torsional strength by over 33% which is further reduced following broaching and implant insertion. For the practicing surgeon, post-operative strength can be adversely affected by both canal preparation and implant insertion.

Adult↗
PubMed2005

Unreduced chronic dislocation of the humeral head with ipsilateral humeral shaft fracture: a case report.

The purpose of reporting this case is to illustrate a treatment plan for a chronically anteriorly dislocated shoulder associated with an ipsilateral humerus fracture, a condition heretofore not addressed in the literature to our knowledge. An 18-year-old female, left hand dominant, injured her left upper extremity and liver in a motor vehicle accident. X-rays at time of injury revealed a diaphyseal facture of her left humerus. No x-rays of the shoulder were taken at time of injury. Treatment consisted of a plaster cast application and discharge at 1 week. The patient was seen again 4 weeks postinjury, at which time only humerus films were taken and the immobilization was continued. At 45 days postinjury, the patient complained of left shoulder pain, and shoulder x-rays at that time revealed an anterior subcoracoid dislocation of the left humeral head. At surgery 52 days postinjury, the humeral shaft fracture was found to be unstable and external fixation of both the fracture (2 pins above and below the fracture) and the reduced but still unstable humeral head was performed (a pin through the humeral head into the glenoid). The external fixator was removed at 3 weeks, and at a 3-year follow-up, the patient had acquired nearly full range of motion of her shoulder without pain and no significant limitations of her arm movements or activities. In conclusion, given a patient with a chronic anteriorly dislocated shoulder and a healing ipsilateral shaft fracture, an external fixation stabilization of both the fracture and the relocated repaired dislocation is a viable treatment option.

Adolescent↗