Abstract:
PURPOSE:Restoring a neutral mechanical axis in total knee arthroplasty (TKA) (within ±3° of varus/valgus) is associated with superior functional outcome and reduced early implant failure. Using conventional alignment jigs results in malalignment in >20 % of cases. In this study, we investigated the reduction of outliers within the threshold of ±3° of leg alignment using a "pinless" navigation system in comparison with conventional alignment jigs investigated. METHODS:In this randomised prospective study, 80 patients were randomly assigned/allocated to the pinless or conventional control group. After surgery, the two groups were compared regarding outliers > ±3° by means of hip-knee-ankle angle (HKA), mechanical medial proximal tibia angle (mMPTA), mechanical lateral distal femoral angle (mLDFA) and duration of surgery. Student's unpaired t test was used for quantitative variables, Fisher's exact test compared groups (pinless vs. control) and a two-sided p value of ≤0.05 was considered statistically significant. RESULTS:In the pinless group, outliers regarding HKA and mLDFA > ±3° was significantly reduced (p = 0.025 and p = 0.002 respectively). In the pinless group, the surgery duration was significantly longer (75.6 vs. 64.5 minutes, p < 0.001). CONCLUSION:Pinless navigation is effective in reducing outliers > ±3° regarding HKA without risking pin-related complications, such as fractures, infections or breaking screws. However, not all tools for conventional navigation in TKA, such as real-time measurements of the tibiofemoral axis and gap balancing, are available.
journal_name
Int Orthopjournal_title
International orthopaedicsauthors
Maderbacher G,Schaumburger J,Keshmiri A,Barthel M,Springorum HR,Craiovan B,Grifka J,Baier Cdoi
10.1007/s00264-014-2529-1subject
Has Abstractpub_date
2015-03-01 00:00:00pages
455-60issue
3eissn
0341-2695issn
1432-5195journal_volume
39pub_type
杂志文章,随机对照试验abstract:INTRODUCTION:Medial valgus-producing tibial osteotomy (MVTO) is classically used to treat early medial femorotibial osteoarthritis. Long-term results depend on the mechanical femorotibial angle (HKA) obtained at the end of the procedure. A correction goal between 3 and 6° valgus is commonly accepted. Several planning m...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-020-04777-6
更新日期:2020-12-01 00:00:00
abstract:PURPOSE:Peri-radicular injection is a widely used procedure for treating lumbar radicular pain, but it remains unclear what types of lumbar pathologies respond well to this treatment. We aimed to investigate the efficacy of peri-radicular injection for degenerative lumbar disorders and to determine what types of pathol...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-015-2761-3
更新日期:2015-07-01 00:00:00
abstract::We conducted a prospective, randomised study on primary total knee replacements to evaluate the effects of tourniquet use on total calculated blood loss using Gross formula, post-operative measured blood loss, operating time, need for blood transfusion, post-operative pain, analgesia requirement and knee flexion. Fort...
journal_title:International orthopaedics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s00264-002-0360-6
更新日期:2002-01-01 00:00:00
abstract:AIM OF THE STUDY:To determine if pre-operative radiologic minimal joint space width (mJSW) is related to the outcome of total knee arthroplasty (TKA) (primary hypothesis). Likewise, the aim was to test if pre-operative mJSW is related to prosthesis survival (secondary hypothesis). METHODS:A retrospective comparative a...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-018-4185-3
更新日期:2019-08-01 00:00:00
abstract:PURPOSE:Adolescent idiopathic scoliosis (AIS) is reported to be associated with the two traditional estrogen receptor genes, ESR1 and ESR2. Yet, the novel estrogen receptor G protein-coupled estrogen receptor 1 (GPER) has not been studied. To investigate the association of GPER gene polymorphisms with the onset and det...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-011-1374-8
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND:Insufficient levels of serum 25-hydroxyvitamin D (25-OHD) influence the knee joint cartilage and lead to development and progression of knee osteoarthritis (OA). The purpose of this study was to determine the status of serum 25-OHD levels in patients with knee OA compared with controls. METHODS:A total of 1...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-010-1186-2
更新日期:2011-11-01 00:00:00
abstract::Infection in prosthesis surgery is very dangerous because it changes the patient's prognosis. Differential diagnosis between septic and aseptic loosening is fundamental in order to apply the correct treatment. The correct diagnostic approach is still debated in literature. The aim of this study was to perform a review...
journal_title:International orthopaedics
pub_type: 杂志文章,评审
doi:10.1007/s00264-008-0575-2
更新日期:2009-02-01 00:00:00
abstract:PURPOSE:There is no consensus regarding systematic screening for infection in aseptic revision total hip arthroplasty (THA). The rationale for systematic intra-operative samples is to increase the sensitivity of latent infections detection, which may require specific treatment. However, the incidence of occult infectio...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-019-04366-2
更新日期:2020-04-01 00:00:00
abstract:PURPOSE:Management of the unexplained, painful large diameter metal-on-metal (MOM) hip replacement is difficult. Although there are guidelines for surgeons, there is no clear documented evidence describing the overall threshold for revision surgery. The 2010 product recall of the DePuy Articular Surface Replacement (AS...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-014-2369-z
更新日期:2014-10-01 00:00:00
abstract::Twenty children with grade IV supracondylar fractures of the humerus had an open reduction 11 to 17 days after injury. The delay was due to swelling and blisters. Most patients recovered a useful range of movement and there were no complications. A posterior approach with V-Y plasty of the triceps makes it easy to ali...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/BF00192291
更新日期:1991-01-01 00:00:00
abstract:PURPOSE:The aim of our study was to evaluate the effect of the S3 (spatial subchondral support) humeral plate and to compare the clinical outcomes and complications after ORIF (open reduction and internal fixation) of proximal humeral fractures using either a S3 plate or a PHLP (proximal humeral locking plate). METHOD...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-015-2705-y
更新日期:2015-06-01 00:00:00
abstract::Fifty patients with thoracolumbar fractures were treated operatively between July 2000 and December 2001. The average age of the patients was 33.6 years (range: 20-50 years), 36 were males and 14 were females and the follow-up averaged 59 months (range: 49-68 months). A fall from a height, usually a tree, was the most...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-006-0161-4
更新日期:2007-04-01 00:00:00
abstract:INTRODUCTION:The relapse rate after Ponseti method of correction has reduced in recent years which is attributable to the better appreciation of the need to achieve the correct degree of abduction. Ponseti recommended clinical 'overcorrection' of the foot to 700 of abduction. However, no scientific basis for this figur...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-017-3603-2
更新日期:2017-11-01 00:00:00
abstract:BACKGROUND:Severe glenoid bone loss remains a surgical challenge. This condition is known to be associated with high rates of glenoid component failure. PURPOSE:The objective of this study was to evaluate clinical and radiological outcomes of a lateralized metal-backed 15.2-mm keeled baseplate prolonged by a thin 24.8...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-018-4249-4
更新日期:2019-09-01 00:00:00
abstract::Forty patients with Kienböck's disease were reviewed to determine the relationship between ulnar variance and the development of Kienböck's disease in a Japanese cohort. The joint levelling procedures designed to correct ulnar variance were evaluated in 11 patients after a mean of 9.7 years following surgery. The mean...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-003-0466-5
更新日期:2003-01-01 00:00:00
abstract:PURPOSE:The purpose of this study was to examine the effect of subperiosteal injection of chondroinductive growth factors on the histological and biomechanical outcome of autologous osteoperiosteal grafts. METHODS:Thirty six standardised osteochondral defects were created in the trochlear groove of 18 Göttinger Minipi...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-013-1827-3
更新日期:2013-06-01 00:00:00
abstract::Synovial oedema is a frequent complication in arthroscopic procedures performed with normal saline as the irrigating fluid. The authors have studied the effect of saline solution, Ringer lactate, 5% Dextran and 10% Dextran in normal saline on 12 specimens of human synovial membrane. They found that 10% Dextran in norm...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:
更新日期:1986-01-01 00:00:00
abstract::There is no evidence surrounding the benefits, effects or clinical outcomes treating asymptomatic urinary tract colonisation. A series of 558 patients undergoing elective admission for orthopaedic surgery were recruited prior to surgery and were screened for urinary tract infection (UTI). Patients had their urine dips...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-008-0573-4
更新日期:2009-06-01 00:00:00
abstract:PURPOSE:Extracorporeal shockwave therapy (ESWT) has become a common practice for treating knee osteoarthritis (OA). However, the effectiveness and safety of this treatment are still questionable. This meta-analysis is aimed at determining the degree of pain reduction and functional outcome after ESWT for knee OA. METH...
journal_title:International orthopaedics
pub_type: 杂志文章,评审
doi:10.1007/s00264-020-04489-x
更新日期:2020-05-01 00:00:00
abstract:AIMS:Recently, the determination of biochemical markers has been intensely explored to better understand the mechanisms underlying knee OA. In this study, we aimed to explore the expression pattern of five biochemical markers in patients with knee OA. METHODS:After IRB approval and signed informed consent, 26 patients...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-020-04829-x
更新日期:2020-10-01 00:00:00
abstract::Between 1991 and 2002, we treated 21 patients with tibial bone loss using a conventional external fixator. Nine patients had an infected open fracture and 12 patients an infected nonunion. After corticotomy, the bone was distracted at the rate of 1 mm (1 mm/step) on alternate days or every 48 h. The mean follow-up per...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-004-0553-2
更新日期:2004-06-01 00:00:00
abstract::We have developed a method to promote longitudinal bone growth at the level of a specific growth-plate (GP) in young rabbits. Insulin-like growth factor-I (IGF-I) was continuously infused by means of an osmotic pump into the bone marrow cavity of the proximal epiphysis of the tibia. Radiological measurement showed a 2...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-007-0336-7
更新日期:2008-06-01 00:00:00
abstract::The objective of this study was to select factors related to the prognosis and curative effect for posterolateral fusion (PLF) of lumbar low-grade isthmic spondylolisthesis (LGIS). Of 125 patients who accepted PLF treatment, 119 obtained solid union in this prospective study. Statistical analysis was used to evaluate ...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-008-0627-7
更新日期:2009-10-01 00:00:00
abstract:BACKGROUND:AES mobile-bearing total ankle replacement was developed from the Buechel Pappas model. It was withdrawn in 2009, after identification of a higher than expected complication rate. The purpose of the current study was to analyse clinical outcomes, failures and survival of the initial series of 50 AES publishe...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-017-3605-0
更新日期:2017-12-01 00:00:00
abstract:PURPOSE:Our aim was to evaluate the results of short-segment pedicle instrumentation with screw insertion in the fracture level and find factors predicting kyphosis recurrence in thoracolumbar burst fractures. METHODS:We retrospectively analysed 122 patients with thoracolumbar burst fracture who were divided into two ...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-016-3180-9
更新日期:2016-06-01 00:00:00
abstract:PURPOSE:A full range of motion after total knee arthroplasty has become more and more requested by our patients, leading to novel designs of knee implants, the so-called "hyperflex" knees. The aim of the present study was to confirm whether or not hyperflexion of operated knees really improves the patients' quality of ...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-014-2372-4
更新日期:2014-10-01 00:00:00
abstract::We reviewed the X-rays of 109 patients with 115 primary total hip replacements utilizing a lateral flare cementless stem to assess axial migration and stability. The average follow-up was 48.6 (24-104) months. The average subsidence at 2 years was 0.32 mm, remaining at a level below 1 mm for the duration of the follow...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-002-0355-3
更新日期:2002-01-01 00:00:00
abstract:PURPOSE:This study reports a case series of 44 primary total knee arthroplasties (TKAs) using autogenous morcellised bone grafting for large (≥10-mm-deep) medial tibial defects, which are generally repaired using metal augmentation. The bone-grafting technique is described in detail and the radiological outcomes are pr...
journal_title:International orthopaedics
pub_type: 杂志文章
doi:10.1007/s00264-016-3339-4
更新日期:2017-05-01 00:00:00
abstract:PURPOSE:Patients who undergo hip hemiarthroplasty (HHA) due to traumatic femoral neck fracture frequently require red blood cell (RBC) transfusion. Although post-operative autologous blood transfusion (ABT) is well established in elective arthroplasty, its role in trauma patients remains unclear. METHODS:Two hundred t...
journal_title:International orthopaedics
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00264-016-3143-1
更新日期:2016-12-01 00:00:00
abstract:PURPOSE:The treatment strategy for pelvic osteolysis with a well-fixed acetabular component after total hip arthroplasty(THA) involves replacing the acetabular cup liner and femoral head, débriding osteolytic lesions, and grafting. METHODS:We investigated whether retention of a well-fixed acetabular component using th...
journal_title:International orthopaedics
pub_type: 信件
doi:10.1007/s00264-011-1372-x
更新日期:2012-05-01 00:00:00