G Blatter's research while affiliated with Kantonsspital St. Gallen and other places

Publications (29)

Article
Full-text available
A 59-year-old woman with calcific tendinitis in her right shoulder underwent extracorporeal shock-wave lithotripsy. Three years and four months later she presented with osteonecrosis of the head of the right humerus. It is known that shock waves in patients with urological disorders can damage blood vessels. A possible reason for the development of...
Article
Full-text available
A 59-year-old woman with calcific tendinitis in her right shoulder underwent extracorporeal shock-wave lithotripsy. Three years and four months later she presented with osteonecrosis of the head of the right humerus. It is known that shock waves in patients with urological disorders can damage blood vessels. A possible reason for the development of...
Article
Twenty-three patients who had undergone unilateral patellectomy were tested using the Cybex II isokinetic dynamometer 9 years postoperatively. The results were compared with the performance of the uninvolved joint. There was a good correlation between loss of the quadriceps muscle function and loss of the hamstrings muscle function at 60 deg/s (R =...
Article
The anterior cruciate ligament (ACL) is a crucial structure for a normal kinematic of the knee joint. Its rupture has been thought to present the initiation of a sequel leading to secondary damage of the meniscus and finally to osteoarthritis. Diagnosis of an ACL rupture is based on the history as well as on the physical examination. A positive Lac...
Article
The purpose of this study was to compare the functional and radiological result of two different positions of the wrist in a plaster cast following Colles' fracture. For this prospective study, each of 50 patients with type A 2.2, A 3.3, C 1.2 or C 2.2 (AO classification) fractures of the radius was randomly assigned to one of two groups. Both grou...
Article
In the subtrochanteric region of the femur high tensile forces are active in the lateral cortex and even higher compressive forces in the medial cortex. Subtrochanteric fractures are often comminuted. The implant of choice for osteosynthesis of subtrochanteric femoral fractures is the condylar plate. Usually the various fragments are dissected intr...
Article
Supracondylar fractures are most often the result of high-energy vehicular trauma in the young population, and the result of low-energy injuries in the elderly. Therefore, these fractures are generally associated with comminution or osteoporosis. Anatomic reconstruction with stable medial buttressing is often not possible. Utilization of AO princip...
Article
Accelerated rehabilitation after anterior cruciate ligament (ACL) reconstruction has become increasingly popular. Methods employed include immediate extension of the knee and immediate full weight bearing despite the risks presented by a graft pull-out fixation strength of 200-500 N. The purpose of this study was to calculate the tibiofemoral shear...
Article
After sacrectomy, mobilization of the patient is only possible if a stable connection between the spine and pelvis can be obtained. We have developed an instrumentation to fix the pelvis to the spine. Two DHS screws connected to each other were implanted in the pelvis (one DHS screw into each ilium). An internal spine fixator, anchored in L3 and L4...
Article
Kinematic and kinetic data were collected of 6 male and 6 female healthy subjects. For downhill walking a dismountable slope of 6 m length and a grade of 19.3% was built. Planar net joint moments and mechanical power at the knee joint were calculated for the sagittal view using force platform records based on standard inverse dynamics procedures. O...
Article
The load axis of the curved-shaped proximal femur lies not inside, but outside the bone. Therefore high bending forces are acting, the medial cortex absorbing pressure, the lateral cortex absorbing tension. In a transverse fracture, a laterally applied plate will absorb the tensile stresses, the medial cortex the pressure forces. When medial butres...
Chapter
Until a few years ago, primary suture repair of the torn anterior cruciate ligament (ACL) without augmentation was the accepted mode of treatment for an acute rupture. Poor long-term results, published increasingly in the 1970s, caused surgeons to abandon this technique. Recently, however, there have been several reports of arthroscopic repair or r...
Article
An osteotomy of the first row for the treatment of hallux valgus is indicated for younger patients with minor to moderate valgus deformation and only minor arthritic changes in the first metatarsophalangeal joint. The osteotomy has two prominent goals: Correction of the deformity and restoration of muscle function and muscular balance. Especially t...
Article
The five- and ten-years review of 40 patients with primary suture of the anterior cruciate ligament without augmentation showed all patients to have a positive Lachman-Test. Five years postoperatively 14 patients had no complaints, after ten years, only two patients remained free of symptoms. Five years after suture nine patients were limited at wo...
Article
The five-and ten-years review of 40 patients with primary suture of the anterior cruciate ligament without augmentation showed all patients to have a positive Lachman-Test. Five years postoperatively 14 patients had no complaints, after ten years, only two patients remained free of symptoms. Five years after suture nine patients were limited at wor...
Article
Formerly, stress-fractures of the metatarsus were the most common stress fractures. But over the last years, tibial and calcaneal localizations have dominated. The diagnosis of a calcaneal stress fracture is usually easy, provided the possibility is remembered. The symptoms are indeed vague, and radiological alterations are often not seen during th...
Article
A total of 71 patients (average age 32 years) with acute grade III acromio-clavicular dislocation were all treated with the same surgical procedure: open reduction, transfixation of the acromio-clavicular joint with a Kirschner wire and suture of the coraco-clavicular ligaments with augmentation. The augmentation was done with a 1.2-mm wire cerclag...
Article
Posterior dislocation of the shoulder is rare. Only 2% of dislocated shoulders are displaced posteriorly, and these are chiefly of the subacromial type. Over 60% of the cases are not diagnosed initially because the arm is held in the normal position of adduction and internal rotation. The most consistent findings on physical examination are: the fi...
Article
In Colles' fractures of the radius the distal fragment is slanted dorsally and radially, dislocated dorsally and radially and supinated. The radius is shortened. Furthermore a comminution-zone of the dorsal cortex is found. In closed reduction the fracture is unwedged and reduced by recreating the mechanism of trauma in neutral position, rather a l...
Article
Roughly 80% of distal radial fractures can be treated conservatively. To decide which fractures should be treated surgically and which can be treated conservatively we divide them into four categories; metaphyseal bending-fractures, epiphyseal buckle-fractures, avulsion-fractures of the articular rim and fractures of the growing skeleton. Metaphyse...
Chapter
Die primäre Naht des zerrissenen vorderen Kreuzbandes ohne Augmentation war bis vor wenigen Jahren die gängige Therapie bei einer frischen Ruptur. Aufgrund der schlechten Spätresultate, die in den 70er Jahren zunehmend publiziert wurden, hat man diese Operationstechnik verlassen. In letzter Zeit wird aber wieder öfter über die arthroskopische Naht...
Article
Periprosthetic fractures after total hip arthroplasty (THA) were found in 0.77% (33 fractures in 4280 THA). At the time of fracture the prosthesis was loose in about one-third of the cases. In most cases (63%), the fracture was located at the distal end of the prosthesis. Fractures at this location were transverse or short oblique; those situated m...
Chapter
Patellectomy is an old surgical procedure that has been used in the treatment of such conditions afflicting the knee as comminuted fractures of the patella, chdromalacia patella, patellofemoral arthrosis, recurrent subluxation of the patella, infections and neoplasms involving the patella [1-3, 18, 29, 36, 37].
Article
One hundred seven patients were examined who had undergone patellectomies between 1965 and 1983 (113 patellectomies). The mean follow-up time was 10.5 years (3-17.5 years) and the average age of the patients 42.6 years. There were three distinct groups of operative techniques: (1) the purse-string technique in 40 patellectomies; (2) the vastus medi...

Citations

... Other complications that vary in their severity have been reported. For instance, osteonecrosis of the humeral head [29], fascial ruptures [30,31] and acute myocardial infarction [32] were described during the course of ESWT. ...
... More than 200 surgical procedures have been described for the treatment of hallux valgus, including soft tissue procedures (1)(2)(3)(4), numerous variations of osteotomy (5)(6)(7)(8)(9)(10)(11)(12)(13),JA arthrodesis, and arthroplasty (14,15). The most popular procedure is osteotomy of the 1st metatarsal bone (16,17). ...
... Die primäre Naht des akut rupturierten VKBs stellte seit den 50iger Jahren bis in die frühen 70iger Jahre die Behandlungsmethode der Wahl dar 65,148,149 . Trotz zufriedenstellender Kurzzeitergebnisse 172,231 zeigten diverse Studien eine Versagerquote von 40 % bis 50 % innerhalb der ersten fünf Jahre 7,16,25,65,69,76,173,222 . ...
... Kirschner wire transfixation of the AC joint combined with Vicryl tape suture augmentation for the CC joint has yielded good clinical results. 12 The overall surgical effect of a hook plate combined with double-tunnel CC ligament reconstruction is superior to that of a hook plate alone for the repair of acute AC joint dislocation. 13 The benefits of combined AC fixation and CC augmentation include initial strong fixation and persistent support by CC augmentation after removal of the AC fixation implants. ...
... Wholly inactive: dependent on others: cannot leave residence 1,5,6,9,11,12,23,25,30,32) ...
... Patellectomies have historically been used as salvage treatment for severely comminuted fractures of the patella but have also been used as a surgical treatment option for chondromalacia patella, osteoarthritis, and recurrent patellar dislocations [1]. However, the resulting alteration of knee biomechanics from the procedure can lead to progressive, degenerative cartilage damage years later [2,3,4]. ...
... The second purpose of this study was to compare two estimation methods of PTF. During a human movement, any flexor moment produced by the hamstrings or gastrocnemius must be compensated by higher knee extensor moments [18]. As the inverse dynamic method does not consider muscle co-contractions, we supposed that the estimation of PTF will be lower for the inverse dynamic method compared to the static optimization method [19]. ...
... Although the surgical scars can limit spinal sinking, patients can then walk upright and there is little impact on their spinal stability. In the present study, 18 patients underwent reconstruction to achieve iliolumbar stability by the technique of Blatter et al. 35 , which involves no bone grafting. Three of these patients subsequently had implant fractures, two 3 years and one 4 years postoperatively; all fractured implants required removal. ...
... Distal radius fracture (DRF) is the most common fracture in adults, and patients aged over 65 years are most at risk of suffering DRF [1]. Over the years, various immobilization methods have been described for the treatment of DRFs [2][3][4][5][6]. There is, however, a scarcity of studies that compare different cast immobilization methods and there is not enough good-quality evidence to enable the selection of one preferable method over the others [7]. ...
... Risk of bias of half (19 studies, 50.0%) of the included studies was medium [13,[33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50], six (15.8%) showed high methodological quality [51][52][53][54][55][56] and 13 studies (34.2%) were of low quality [57][58][59][60][61][62][63][64][65][66][67][68][69] (Table 2). The main reasons for a medium to low methodological quality were due to an unclear description of participants and prior interventions, confounding factors, and incompletely reported results. ...