Injury of the cervical spine associated with carotid and vertebral artery occlusion: case report and literature review.
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Accidents, Traffic↗
Biomedical subjects
F J Seibert
Publications and source records attributed to F J Seibert.
Radial avulsion of the triangular fibrocartilage complex in acute wrist trauma: a new technique for arthroscopic repair.
The advantages of arthroscopically assisted treatment of intraarticular distal radius fractures, especially the detection of additional carpal lesions, also focus attention on special surgical techniques for operating on these injuries within the same session. When we consider the biomechanical situation, various kinds of triangular fibrocartilage complex (TFCC) lesions, and their arthroscopic aspects, there are probably two possibilities for surgical treatment that are similar to arthroscopic meniscal surgery: resection of flap tears and the refixation of peripherally disinserted TFCC. Avulsions from the ulnar styloid or from the ulnar collateral ligament and the extensor carpi ulnaris tendon can easily and satisfactorily be treated by convenient arthroscopic suture techniques, whereas the reattachment of the triangular disc in the sigmoid notch is very tricky. This problem is solved by a recently developed procedure using the so-called T-Fix-device (Acufex), which provides the possibility of transosseus refixation by closed arthroscopic procedure and therefore guarantees the principle of minimal invasive surgery.
Arthroscopes↗
Heart rate performance curve during incremental cycle ergometer exercise in healthy young male subjects.
In 1992 Conconi et al. (20) presented an indirect and noninvasive method for the determination of anaerobic threshold (AnT) in an incremental field test for runners. This noninvasive method for the determination of anaerobic threshold is dependent on the occurrence of a deflection of the heart rate performance curve (HRPC). The aim of our study was to evaluate the degree and direction of the deflection of the HRPC and the relationship of the heart rate threshold (HRT) to the lactate turn point in a group of 227 healthy young subjects (age: 23 +/- 4 yr). The subjects were divided into three groups by means of second degree polynomial fitting (GI: regular deflection, kHR > 0.1; G II: no deflection, 0 < kHR < 0.1; G II: inverse deflection, k < -0.1). No significant differences between the groups were found in the anthropometric data or in the power output and the blood lactate concentration at both the first (LTP1) and second (LTP2) lactate turn points and at maximum performance (Pmax). Using the method of Conconi et al. (20), 85.9% of the subjects showed a "regular" deflection, 6.2% showed no deflection at all, and 7.9% showed even an inverted deflection of the HRPC. An HRT could be obtained in both G I and G III, and power output at HRT was not significantly different in comparison to that at the LTP2. No HRT could be assessed in G II. The heart rate at HRT and the LTP2 were significantly lower in G III compared with G I. The phenomenon of heart rate break point may be attractive in training regulation, but its application is limited because a heart rate deflection cannot be found even in young subjects in some cases.
Exercise↗
[Are complications in cruciate ligament replacement operations with patellar tendon transplantation dependent on surgical technique and surgical timing?].
HYPOTHESIS: In a retrospective study we analyzed our results of ACL reconstructions with a patellar tendon graft. We wanted to know if the complications were dependent upon timing and technique of surgery. METHOD: We reviewed 283 patients after ACL-reconstruction, who underwent an operation with bone patellar tendon graft between 1984-1993. In our study we particularly looked for complications. The overall rate of complications was 21.6% dependent on the applied technique. Infections, DVTs, limitations of movement and graft failures were the most common complications. Furthermore we analyzed the timing of operation. Arthrofribrosis was less common in the group with delayed reconstruction (6.1%) whereas in the primary reconstruction group the rate was 17.6%. For this reason we changed our management with regard to the timing of operation. Meniscal injuries were the most common additional injuries in both groups. Conservatively treated ACL-ruptures showed a high rate of mensical ruptures in combination with cartilage injuries. CONCLUSION: Because of these results we put more emphasis on patient information to achieve the optimal result and to meet the individual needs for every patient.
Anterior Cruciate Ligament↗
[Indications and use of "AO pinless fixateurs". A preliminary report].
Improvements in techniques for the management of open tibial fractures with the external fixator have made a great impact on the final results in recent years. More recently this system has been discussed controversially. The longer treatment takes, the more likely it is that complications will occur when relying solely on the conventional external fixator. The new pinless fixator for the tibia was designed to overcome these problems. Early conversion to a more stable implant is one of the primary goals of this system. In this article the pros and cons are presented in detail and the limitation of this device explained. Moreover first clinical experiences are summarized and possible additional indications highlighted.
Equipment Design↗
[Arthrography of the wrist joint in acute trauma].
At least 20-25% of the patients with distal radius fractures show concomitant lesions of the intrinsic ligaments of the proximal carpal row and lesions of the triangular fibrocartilage complex. A high number of these lesions cause persistent pain and discomfort, even if there is a good radiological result. Wrist arthrography as a screening method can identify these lesions and help to select the patients in whom further diagnostic and therapeutic procedures (diagnostic arthroscopy, arthroscopical refixation of the discus or SL stabilization) should be performed. Wrist arthrography also allows cartilage lesions to be detected, as well as associated fractures or lesions of the capsular ligaments. The technique of wrist arthrography in the acute traumatized wrist, which is different from wrist arthrography in patients suffering from chronic post-traumatic pain, is described in this paper.
Arthrography↗
[Complications in 283 cruciate ligament replacement operations with free patellar tendon transplantation. Modification by surgical technique and surgery timing].
In our retrospective study we reviewed 283 patients who were operated on between 1984 and 1993 after an ACL-rupture. We used a free patellar tendon bone graft in all patients. The aim was to assess the complications such as infections, thrombosis, limitation of movement and graft failures. We also looked on the timing of operation and the technique. We saw an overall complication rate of 21.6%. The most common complication was a restricted range of motion in 10.9% which required surgery. In patients treated immediately after injury (within 7 days) we found an arthrofibrosis rate of 17.6%. In delayed surgery (more than 4 weeks after injury) this complication was only seen in 6.1%. The rate of infection was 4.6%, the rate of thrombosis 1.8% and in 4,2% we had to accept an ongoing instability. With these findings we now evaluate the needs and the social environment even more closely to find the best treatment protocol for each individual. In conclusion we favour secondary ACL-reconstruction.
Anterior Cruciate Ligament↗
[The unreamed tibial intramedullary nail in treatment of tibial fractures--initial experiences].
The unreamed tibial nail (UTN) combines the advantages of the external fixator (preservation of the cortical blood supply) with that of conventional intramedullary nailing (closed system, high patient comfort, no pin problems) in the treatment of the lower leg fracture [5]. Within 1 year (III/92 to III/93) 31 closed and 2 open fractures were stabilised with UTN. In 67% (22 persons) we found fractures of the A1, A2 and A3 types according to the AO classification. In 6 patients there was a combined lesion with involvement of the ankle joint. A follow-up of 27 patients was done, extending to an average of 6 months postoperatively. The clinical and radiological results were excellent in 26; average fracture healing time was about 12-14 weeks.
Adolescent↗
[Diagnosis, therapy and prognosis of Pipkin fractures (femur head dislocation fractures)].
Fractures of the femoral head combined with a dislocation of the hip are rare injuries. In the period from 1975 to 1993 nine of our 231 operatively treated patients who had a hip injury sustained a Pipkin fracture. According to the history of our patients and the results of the last 18 years we discuss the possibilities of diagnosis, treatment and prognosis of the fracture of the femoral head with dislocation of the hip.
Adult↗