Ralf Henkelmann

Dr. Ralf Henkelmann

Dept. of Orthopaedics, Trauma & Plastic Surg., University Hospital Leipzig, Leipzig, Saxony, Germany
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Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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21 November 2017 in BMC Musculoskeletal Disorders
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CSCommittee TRAUMA of the AGA-Society for Arthroscopy and Joint Surgery
Committee TRAUMA of the AGA-Society for Arthroscopy and Joint Surgery
Ralf HenkelmannRalf Henkelmann
Ralf Henkelmann
KFKarl-Heinz Frosch
Karl-Heinz Frosch
RGRichard Glaab
Richard Glaab
HLHelmut Lill
Helmut Lill
PHPierre Hepp
Pierre Hepp
To systematically review all available studies of operatively treated proximal tibia fractures and to report the incidence of superficial or deep infection and subsequent outcomes. A systematic review of the literature in Medline, Cochrane, Embase and GoogleScholar was conducted to identify studies with cohorts of patients with infection after surgical treatment of proximal tibia fractures. Studies were included according to predefined inclusion and exclusion criteria. The studies were analysed for methodological deficiencies and quality of outcome reporting based on the Level of Evidence (LOE) and Coleman Methodology Scoring (CMS.) In total 32 studies were included. There was heterogeneity between the studies, in terms of subject of the studies, outcome criteria, fracture type and classification, surgical techniques and length of follow-up. Therefore, no meta-analysis could be performed. The average CMS was 54.2 (range 36–75). The included studies were 25 case series (LOE IV), 6 were prospective cohort studies (LOE III) and one was a prospective randomized trial (LOE I). 203 (12.3%, range: 2.6–45.0%) infections occurred in the overall population (n = 2063). Those were divided into 129 deep infections and 74 superficial infections. Revision due to infection was reported in 29 studies, microbiological results in 6, respectively. 72 (55,8%) of 129 cases reporting outcome after deep infection had an unsatisfactory outcome with substantial limitations of the affected joint and leg. Postoperative infections are a challenge, sometimes requiring several revisions and often with a worse outcome. Further studies with structured study protocols should be performed for a better understanding of risk factors to improve treatment outcomes.

8 December 2017 in BMC Surgery
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Andreas HöchAndreas Höch
Andreas Höch
PPPhilipp Pieroh
Philipp Pieroh
Ralf HenkelmannRalf Henkelmann
Ralf Henkelmann
CJChristoph Josten
Christoph Josten
JBJörg Böhme
Jörg Böhme
The incidence of pelvic ring fractures in the elderly significantly increased. Because of persistent pain and immobilization associated with this injury, surgical treatment is recommended. To minimise comorbidities and surgical risk, percutaneous techniques are becoming more relevant. In-screw cement augmentation of sacroiliac screw fixation is a promising procedure; however, clinical follow-up data remain scarce. This study investigated the safety and possible complications of the procedure along with a 1-year follow-up. Thirty-four patients (treated with 43 screws) were prospectively included. Data on patients’ age and sex, the mechanism of accident, fracture pattern, duration of hospital stay, surgery and adverse events were recorded. Data were obtained postoperatively on the reduction of pain and complications, such as infection, cement leakage and neurological deficits, and at 1-year follow-up on pain, quality of life according to the 12-Item Short Form Survey and mobility. Implant failure was defined as retraction or dislocation of screws and was also documented. Screw-related complications occurred with 2 of 43 screws. None of these complications were related to cement augmentation. In-hospital adverse events occurred in 6 of 34 patients. Postoperative pain, measured by the visual analogue scale, was significantly reduced from 6.7 ± 1.4 preoperatively to 2.7 ± 1.0 postoperatively (p < 0.001). Although patients complained of pain at the 1-year follow-up, they reported a significant decline compared with pain at admission (3.4 ± 2.3; p < 0.001). Results on the quality of life were comparable with those for the age- and gender matched German population. All patients were mobile, and no implant failure was detected. The results indicate that in-screw augmented sacroiliac screw fixation for fragility fractures of the pelvis is a safe technique. Pain was significantly reduced immediately after surgery compared to the preoperative state. Furthermore, significant pain reduction after one year compared to the preoperative state and quality of life was comparable to the age- and gender- matched German population. Thus, we recommend in-screw augmentation for screw fixation for sacral fragility fractures of the pelvis following failed conservative treatment.

9 November 2020 in Journal of Orthopaedic Trauma
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Ralf HenkelmannRalf Henkelmann
Ralf Henkelmann
KFKarl-Heinz Frosch
Karl-Heinz Frosch
MMMeinhard Mende
Meinhard Mende
TGTobias J. Gensior
Tobias J. Gensior
CUChristopher Ull
Christopher Ull
PHPierre Hepp
Pierre Hepp
Objectives: To identify the potential controllable risk factors for surgical site infection (SSI). Design: A retrospective cohort study. Setting: Seven Level-I trauma centers. Patients/Participants: Patients with OTA/AO 41 B or C tibial plateau fractures (n = 2106). Intervention: Various surgical treatments for tibial plateau fractures. Main Outcome Measurements: The primary outcome was SSI after the index operation. The secondary outcomes were the risk factors for SSI, identified using backward stepwise generalized multiple regression analysis. Results: Of the 2106 enrolled patients, 94 had deep SSIs. The average SSI rate was 4.5%. Fracture morphology revealed type B injuries in 57.5% and type C in 42.5% of the patients. Univariate regression analysis revealed that several factors, namely, number of comorbidities [>6 vs. none; odds ratio (OR) 8.01, 95% confidence interval (CI) 2.8–22.8, P < 0.001], diabetes mellitus (OR 3.5, 95% CI 2.0–6.3, P < 0.001), high body mass index (OR 1.3, 95% CI 1.1–1.6, P = 0.001), OTA/AO fracture type C (OR 5.6, 95% CI 3.3–9.5, P < 0.001), compartment syndrome (OR 9.1, 95% CI 5.7–14.8, P < 0.001), and open fracture (OR 6.6, 95% CI 3.7–11.7, P < 0.001), were associated with a significantly higher SSI risk. Analysis of microbial sensitivity tests revealed that 55.1% of the pathogens were resistant to perioperative antibiotic prophylaxis. Conclusions: Most of the identified risk factors cannot be controlled or are subject to other factors that are difficult to control. However, our data suggest that the choice of perioperative antibiotic prophylaxis may influence the rate of SSI. This possibility should be investigated in a prospective randomized controlled trial. Level of Evidence: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

27 October 2020 in Clinical Rehabilitation
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Ralf HenkelmannRalf Henkelmann
Ralf Henkelmann
LPLisa Palke
Lisa Palke
SSSebastian Schneider
Sebastian Schneider
DMDaniel Müller
Daniel Müller
BKBernhard Karich
Bernhard Karich
JBJörg Böhme
Jörg Böhme
To compare the effects of anti-gravity treadmill rehabilitation with those of standard rehabilitation on surgically treated ankle and tibial plateau fractures. Open-label prospective randomized multicenter study. Three level 1 trauma centers. Patients with tibial plateau or ankle fractures who underwent postoperative partial weight-bearing were randomized into the intervention (anti-gravity treadmill use) or control (standard rehabilitation protocol) groups. The primary endpoint was the change in the Foot and Ankle Outcome Score for ankle fractures and total Knee injury and Osteoarthritis Outcome Score for tibial plateau fractures (0–100 points) from baseline (T1) to six weeks after operation (T4) in both groups. Leg circumference of both legs was measured to assess thigh muscle atrophy in the operated leg. Thirty-seven patients constituted the intervention and 36 the control group, respectively; 14 patients dropped out during the follow-up period. Among the 59 remaining patients (mean age 42 [range, 19–65] years), no difference was noted in the Foot and Ankle Outcome Score (54.2 ± 16.1 vs. 56.0 ± 16.6) or Knee injury and Osteoarthritis Outcome Score (52.8 ± 18.3 vs 47.6 ± 17.7) between the intervention and control groups 6 weeks after operation. The change in the leg circumference from T1 to T4 was greater by 4.6 cm in the intervention group (95% confidence interval: 1.2–8.0, P = 0.005). No adverse event associated with anti-gravity treadmill rehabilitation was observed. No significant difference was noted in patient-reported outcomes between the two groups. Significant differences in muscular atrophy of the thigh were observed six weeks after operation.

1 January 2014 in The Scientific World Journal
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HSHagen Schmal
Hagen Schmal
GSGian M. Salzmann
Gian M. Salzmann
ELElia R. Langenmair
Elia R. Langenmair
Ralf HenkelmannRalf Henkelmann
Ralf Henkelmann
NSNorbert P. Südkamp
Norbert P. Südkamp
PNPhilipp Niemeyer
Philipp Niemeyer
Purpose.Reliable data aboutin vivoregulation of cytokines in early ankle osteoarthritis (OA) are still missing.Methods.49 patients with a mean age of33±14years undergoing an arthroscopy of the ankle with different stages of chronic OA were prospectively included in a clinical trial. Lavage fluids were analyzed by ELISA. Additionally, clinical parameters and scores (FFI, CFSS, and AOFAS) were evaluated and supplemented by the Kellgren Lawrence Score (KLS) and the ankle osteoarthritis scoring system (AOSS).Results.ICRS grading of cartilage damage, previous operations, and duration of complains were strong indicators for OA progress and showed correlations to age, clinical scores, validated KLS, and AOSS (P<0.04). Systemic and intraarticular inflammatory parameters were low in all patients. Biochemically, aggrecan and BMP-7 positively indicated OA with statistically significant associations with duration of symptoms, FFI, AOFAS, and KLS (P<0.04). In contrast, BMP-2 levels showed statistically significant negative correlations to aggrecan or BMP-7 concentrations, which is in line with the negative association with ICRS score and KLS and the positive correlation with FFI (P<0.03).Conclusions.We were able to identify different key markers of OA in the ankle as aggrecan, BMP-7, and BMP-2, offering starting points for new ways in diagnostics and interventional strategies.

6 August 2021 in Clinical Rehabilitation
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LPLisa Palke
Lisa Palke
SSSebastian Schneider
Sebastian Schneider
BKBernhard Karich
Bernhard Karich
MMMeinhard Mende
Meinhard Mende
CJChristoph Josten
Christoph Josten
Ralf HenkelmannRalf Henkelmann
Ralf Henkelmann
To compare the one-year postoperative outcomes of anti-gravity treadmill rehabilitation with those of standard rehabilitation in patients with ankle or tibial plateau fractures. An open-label prospective randomised study. Three trauma centres. Patients were randomised into the intervention (anti-gravity treadmill) or control (standard protocol) rehabilitation group. The primary endpoint was changes in the Foot and Ankle Outcome Score for ankle fractures and Knee Injury and Osteoarthritis Outcome Score for tibial plateau fractures from baseline to 12 months after operation. Secondary endpoints were the subscores of these scores, muscle atrophy (leg circumference at 20 cm above and 10 cm below the knee joint) and the Dynamic Gait Index. Initially, 73 patients (37 vs 36) underwent randomisation. After 12 months, 29 patients in the intervention group and 24 patients in the control group could be analysed. No significant difference was noted in the Foot and Ankle Outcome Score (80.8 ± 18.4 and 78.4 ± 21.1) and Knee Injury and Osteoarthritis Outcome Score (84.8 ± 15.2 and 81.7 ± 17.0). The change in the Dynamic Gait Index from 12 weeks to 12 months differed significantly between the groups (P = 0.04). Patients with tibial plateau fractures had a 3 cm wider thigh circumference in the intervention group than those in the control group (95% confidence interval: −0.2 to 6.3 cm, P = 0.08). One year after surgery, patients who had undergone anti-gravity treadmill rehabilitation showed better gait than patients in the control group, and those with tibial plateau fractures had less muscle atrophy.