Publications by authors named "Rehan Gul"

19 Publications

  • Page 1 of 1

Long-term Results of the Thrust Plate Prosthesis, 21-year Follow-up: A Case Report and Literature Review.

J Orthop Case Rep 2021 Apr;11(4):10-13

Department of Trauma and Orthopaedic, Cork University Hospital, Wilton, Cork, Ireland.

Introduction: The thrust plate prosthesis (TPP) is a type of cementless hip replacement. Aimed to preserve femoral diaphyseal bone, it was favored by some orthopedic surgeons in younger patients as they could potentially undergo multiple revision arthroplasties during their lifetime. Of particular note, the preserved diaphyseal bone allows for the implantation of a subsequent primary total hip arthroplasty (THA).

Case Report: We reported on a 64-year-old male patient who underwent thrust plate prosthesis (TPP) implantation 21 years ago (1999) for the treatment of primary osteoarthritis (OA) of the right hip joint. At 21-year follow-up, he had not developed any post-operative complications, and he reported a SF12 score of 32 and Oxford hip score of 47/48.

Conclusion: TPP proved to be successful clinically and radiologically, especially in the young patient. It loads directly to the cortex of the proximal femoral metaphysis as in a native hip joint. It is a bone preserving prosthesis which allows for good bone stock in the case of revision surgery that was a victim of commercial considerations.
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http://dx.doi.org/10.13107/jocr.2021.v11.i04.2130DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8310632PMC
April 2021

Subcuticular sutures versus staples for skin closure after primary hip arthroplasty.

Acta Orthop Belg 2021 Mar;87(1):55-64

High-quality and cost-effective health care are highly recommended especially in joint replacement surgeries, particularly in total hip arthroplasty. Therefore, it is indispensable for orthopaedic surgeons to spot the potential areas of quality improvement. Evaluating the efficacy of the different ways of skin closure is an unacknowledged topic. We performed this study following both the Preferred Reporting Items for Systematic Reviews and Meta- analyses Statement (PRISMA) and the Cochrane Handbook for systematic reviews and meta-analysis. Articles were from any country, written in any language. We included all randomised control trials and retrospective cohort studies undergoing primary total hip arthroplasty who either received staples or subcuticular sutures for skin closure. The primary outcome was the incidence of wound infection. Secondary outcomes included length of stay (LOS), time to skin closure, total cost, and patient's satisfaction. We included five studies in our cumulative meta- analysis. We conducted them using Review Manager V.5.0. We computed the risk ratio as a measure of the treatment effect, taking into account heterogeneity. We used Random-effect models. Primary skin closure with subcuticular sutures had insignificant marginal advantages for wound infections, LOS, and wound oozing. On the contrary, staples were more cost- effective and had less time for closure with higher patient's satisfaction. Except for closure time and patient satisfaction , no significant difference between the two groups. The use of staples after THA may have several slight clinical advantages over the subcuticular sutures. However, owing to the complexities associated with wound closure, future clinical and laboratory studies assessing their complication outlines must be examined before an optimum technique can be determined.
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March 2021

Midterm results of modern patellofemoral arthroplasty versus total knee arthroplasty for isolated patellofemoral arthritis: systematic review and meta-analysis of comparative studies.

Arch Orthop Trauma Surg 2021 Apr 7. Epub 2021 Apr 7.

Department of Trauma and Orthopaedic Surgery, Cork University Hospital, Wilton, Cork, Ireland.

Background: Both Patellofemoral Arthroplasty (PFA) and Total Knee Arthroplasty (TKA) are accepted surgical options for end-stage isolated patellofemoral osteoarthritis (PFOA). We performed a systematic review and meta-analysis to compare outcomes of PFA and TKA by evaluation of the patient-reported outcome measures (PROMs).

Methods: We systematically identified publications reporting on patients that underwent either TKA or modern PFA for isolated PFOA. Meta-analysis software was used to screen for potential articles with at least two years' follow-up. Data were extracted and analysed for all PROMs operating time, postoperative inpatient time, complications and cost. We included five studies in our cumulative meta-analysis and reviewed them using Review Manager V.5.0. We computed the risk ratio as a measure of the treatment effect, taking into account heterogeneity. We used random-effect models.

Results: No significant difference was found between both TKA and PFA in the context of operating time. No significant difference after five years' follow-up was found between the two treatment options in terms of UCLA score and patient satisfaction. PFA showed significant improvement in WOMAC score at five-year follow-up, less postoperative inpatient time, better cost-effectiveness and significantly less blood loss.

Conclusion: PFA seems to be a viable alternative to TKA for treatment of isolated PFOA in appropriately selected patients. PFA showed less postoperative inpatient time and blood loss with similar PROMs to the TKA. Moreover, it is an economically beneficial joint-preserving procedure.
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http://dx.doi.org/10.1007/s00402-021-03882-4DOI Listing
April 2021

Outcomes of First Metatarsophalangeal Joint Fusion Using a Precontoured Plate.

Foot Ankle Spec 2021 Mar 23:19386400211000594. Epub 2021 Mar 23.

Cork University Hospital, Cork, Ireland.

Background: The purpose of this study was to determine the results of an arthrodesis technique of the first metatarsophalangeal joint (MTPJ) using a precontoured dorsal plate to correct the hallux valgus deformity.

Methods: This was a retrospective analysis of outcomes for first MTPJ arthrodesis performed using 2 precontoured dorsal plates. Radiographic outcomes (intermetatarsal angle [IMA] and hallux valgus angle [HVA]) and patient-reported functional outcome measures (Short-Form 12 and Foot and Ankle Outcome Score) were recorded and compared.

Results: Fifty-five patients underwent 77 first MTPJ arthrodeses for severe hallux valgus deformity with associated degenerative changes at the first MTPJ. The mean reduction of the IMA was 5.67° ( < .05) and the mean reduction of the HVA was 33° ( < .05). The Short-Form 12 assessment of global health demonstrated a significant improvement in both the physical and mental health composite scores by 16.4 points and 10.4 points ( < .05), respectively. The Foot and Ankle Outcome Score demonstrated a cumulative decrease of 35% (59.28; < .05) in all domains.

Conclusions: First MTPJ arthrodesis using a precontoured dorsal plate is a successful procedure with a high union rate, low complication rate, and a high level of patient-reported satisfaction.

Levels Of Evidence: .
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http://dx.doi.org/10.1177/19386400211000594DOI Listing
March 2021

Malignant triton tumour (MTT) of the lung with metastasis to the proximal femur.

BMJ Case Rep 2021 Feb 4;14(2). Epub 2021 Feb 4.

Medical Oncology, Cork University Hospital Group, Cork, Ireland.

A 65-year-old female patient has a history of malignant triton tumour of the right upper lobe of the lung. She underwent right upper lobectomy and lymphadenectomy in May 2018. She presented in November 2019 with pathological fracture of the left proximal femur. It was not associated with neurofibromatosis. We decided to do an excisional biopsy of the mass and proximal femoral replacement followed by radiotherapy. Four months later, she presented with local recurrence. We organised a multidisciplinary team between the orthopaedic, histopathology and oncology teams. Then, we decided to treat her with chemotherapy. After 2 months of follow-up, she responded well to the chemotherapy with no further deterioration of her condition.
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http://dx.doi.org/10.1136/bcr-2020-237086DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7868192PMC
February 2021

Trabecular Metal Augments for Severe Acetabular Defects in Revision Hip Arthroplasty: A Long-Term Follow-Up.

J Arthroplasty 2021 05 29;36(5):1740-1745. Epub 2020 Dec 29.

Dept. of Trauma and Orthopaedics, South Infirmary Victoria University Hospital, Cork, Ireland; University College Cork, Cork, Ireland.

Background: Paprosky type IIIa and IIIb acetabular defects remain technically challenging during revision hip arthroplasty. Numerous surgical options exist to counter extensive acetabular bone loss with high postoperative complication and revision rates reported. Our aim was to report comprehensive long-term outcomes of our experience with Trabecular Metal (TM) augments for these difficult cases.

Methods: 38 patients underwent revision total hip arthroplasty at our institution from 2009 to 2014 where a TM augment was used for acetabular deficiency. Prospective radiographic and Patient-Reported Outcome Measures were recorded and analyzed to a mean of 7.3 years (range: 5.4 to 10.8).

Results: No patient was excluded or lost to follow-up. Complications included 3 intraoperative fractures, 1 early infection requiring washout with implant retention, 1 early revision due to allograft resorption, and 6 patients who required late repeat revision surgery: 3 for late infection, 2 for aseptic loosening with augment fracture or dislocation, and 1 for recurrent dislocation. The estimated mean implant survivorship was 8.99 years. 93.5% of augments remaining were well osseointegrated while 97% of the acetabular shells were osseointegrated. Hip center of rotation was restored by a mean of 14 mm inferiorly without significant medialization. Short Form-12 (SF-12) and Western Ontario and McMaster Universities Arthritis Index (WOMAC) scores were significantly reduced postoperatively to a level comparable to the average individual.

Conclusion: This long-term study details our experience of TM augments for the most severe acetabular defects. For such cases, no excellent surgical solution exists; in comparison to alternative methods, we advocate that this technique is reasonably safe and effective.
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http://dx.doi.org/10.1016/j.arth.2020.12.033DOI Listing
May 2021

Perceptions of and barriers to ethical promotion of pharmaceuticals in Pakistan: perspectives of medical representatives and doctors.

BMC Med Ethics 2021 01 4;22(1). Epub 2021 Jan 4.

College of Pharmacy, Universality of the Punjab, Allama Iqbal Campus, Lahore, 54000, Pakistan.

Background: In Pakistan, drug promotion practices, ethical or unethical, have rarely been in the spotlight. We aimed to assess the perception and barriers of medical representatives (MRs) and doctors (MDs) regarding ethical promotion of pharmaceuticals in Pakistan.

Methods: A cross sectional survey was conducted in seven major cities of Pakistan for 6-months period. Self-administered questionnaire was used for data collection. Logistic regression and five-point Likert scale scoring was used to estimate the perceptions and barriers.

Results: Compared to national companies (NCs), the medical representatives (MRs) of multinational companies (MNCs) strongly believed that their companies follow World Health Organization (WHO) (OR; 5.31, p = 0.0005), International Federation of Pharmaceutical Manufacturers & Associations (IFPMA) (OR; 6.45, p = 0.0005) and national codes of ethics (OR; 5.84, p = 0.0005). MNCs trained their MRs (OR; 6.68, p = 0.0005), provide accurate and valid scientific data (OR; 4.01, p = 0.007) with adequate system of accountability and controls on product samples (OR; 1.96, p = 0.047), while, NCs sponsor social or entertainment activities, seminars and conferences, and all sort of facilitation in form of gifts of their choice and clinic renovation for medical doctors (MDs). MDs perceptions were similar to MRs mentioned above, yet strongly agreed that companies offer cash payments or equivalents to MDs. The MRs of NCs/MNCs and MDs agreed/strongly agreed that no external accountability, profiteering, pressure on sale targets, job insecurity, condoning unethical promotion by high-ups' and business promotion by junior MDs were the predominant barriers.

Conclusion: In conclusion, MRs of MNCs and MDs believed that MNCs follow certain codes of ethics in the promotion of pharmaceuticals, while NCs tend to be more profit oriented and even condone unethical promotion. All stakeholders, MRs, MDs and companies, might pose certain barriers, intentionally or unintentionally, in ethical promotion.
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http://dx.doi.org/10.1186/s12910-020-00569-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7783997PMC
January 2021

Bicortical Contact Predicts Subsidence of Modular Tapered Stems in Revision Total Hip Arthroplasty.

J Arthroplasty 2020 08 1;35(8):2195-2199. Epub 2020 Apr 1.

Department of Orthopaedics, Cork University Hospital, Wilton, Cork, Co. Cork, Ireland.

Background: We describe the intraoperative parameters that affect stem subsidence rates in tapered modular femoral stems for revision total hip arthroplasty (THA). We also determine the effect of the stem bicortical contact on subsidence rates and whether there is a minimum threshold bicortical contact that must be achieved to avoid the complication of subsidence.

Methods: This is a retrospective cohort study consisting of 109 hips in 105 patients (53 males and 52 females) at a minimum of 2 years of follow-up. All revisions were carried out for Paprosky type 3A and 3B femoral deficits. Clinical outcomes included the indication for revision, aseptic re-revision surgery, specifications of the stem inserted, and specifications of the femoral head and acetabular components implanted. Radiographic outcome measures included subsidence (mm) and bicortical contact (mm).

Results: Using multivariate regression analysis, 3 parameters were associated with an increased rate of stem subsidence. A reduced bicortical contact distance (P < .001) and a stem length of ≤155 mm (P < .001) were both associated with higher subsidence rates. We also demonstrated a novel threshold of 20-mm bicortical contact which must be achieved to significantly reduce subsidence rates in these modular femoral stems for revision THA.

Conclusion: Subsidence rates of modular tapered femoral stems for revision THA can be significantly reduced by increasing the initial bicortical contact of the stem within the diaphysis and the overall length of the femoral stem >155 mm. We describe a minimum threshold bicortical contact distance of 20 mm that should ideally be exceeded to significantly reduce the risk of stem subsidence within the femoral canal.
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http://dx.doi.org/10.1016/j.arth.2020.03.047DOI Listing
August 2020

Femoral head disengagement from Accolade femoral stem in MOM Arthroplasty: a case study and literature review.

SICOT J 2019 20;5:30. Epub 2019 Aug 20.

Department of Trauma and Orthopaedic, Cork University Hospital, Wilton, Cork, Republic of Ireland.

Background: Metal on Metal Hip arthroplasty was commonly used until the last decade. However Hip Arthroplasty registries of many countries showed increased revision rates of MOM Hips - these high rates of revision caused by trunnionosis, adverse tissue reactions (ALTRs) and Pseudotumor formation. The Case: Our Case is 73 years old gentleman who had left MOM THR in 2008, and was doing fine till the beginning of 2018 when his left leg stuck while getting out of the car. Despite he heard the pop and his leg was shortened and externally rotated, but he was still walking on it for a while. On reviewing him in our orthopedic clinic and after getting the CT-scan showed that he had dislocated femoral head from the stem.
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http://dx.doi.org/10.1051/sicotj/2019030DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6701877PMC
August 2019

Nuclear Medicine Theranostics: Perspective from Pakistan.

Nucl Med Mol Imaging 2019 Feb 4;53(1):38-41. Epub 2019 Jan 4.

1Nuclear Medicine Department, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH& RC), Lahore, Pakistan.

Nuclear medicine has been offering diagnostic and therapeutic solution since the introduction of radioactive iodine for thyroid diseases since decades. However, the concept of theranostics has given a new found impetus to the use of pairs of radiopharmaceuticals for diagnosis and treatment. Presented here is a perspective on theranostics from Pakistan.
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http://dx.doi.org/10.1007/s13139-018-00566-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6377574PMC
February 2019

Acetabular Revision Using Trabecular Metal Augments for Paprosky Type 3 Defects.

J Arthroplasty 2018 03 6;33(3):823-828. Epub 2017 Dec 6.

Department of Orthopaedic Surgery, South Infirmary Victoria University Hospital, Cork, Ireland.

Background: Trabecular Metal (TM) augments are one option when reconstructing bone loss during acetabular side revision surgery.

Methods: We studied 38 consecutive patients with Paprosky type 3 defects that were revised using a TM shell and one or more augments over a 6-year period. There were 29 Paprosky type 3A defects and 9 Paprosky type 3B defects. The mean age of the patients at the time of surgery was 68.2 years (range 48-84). The mean length of follow-up was 36 months (range 18-74).

Results: The mean preoperative short form 12 health survey improved from 27.7 before operation to 30.1 at the time of final follow-up (P = .001). The mean Western Ontario and McMaster Universities Osteoarthritis Index score improved from 53 preoperatively to a mean of 78.8 at final follow-up (P < .0001). There was evidence of radiographic loosening in 7 of the cup-augment constructs. One patient developed a deep infection requiring re-revision. Two patients required revision for aseptic loosening.

Conclusion: The use of TM in complex acetabular reconstruction is associated with good outcome in the short to medium term.
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http://dx.doi.org/10.1016/j.arth.2017.10.031DOI Listing
March 2018

The impact of trabecular metal on hip centre of rotation in revision and complex primary hip arthroplasty, a radiological review.

Hip Int 2017 Sep 1;27(5):500-504. Epub 2017 Jul 1.

 Department of Orthopaedics, Cork University Hospital, Cork - Republic of Ireland.

Introduction: Total hip arthroplasty (THA) is a very successful procedure. Revision THA is becoming increasingly common. Recent developments to improve outcomes include the development of large trabecular metal (TM) acetabular cups and augments. There is a paucity of data on the benefit of these new techniques.

Methods: A single-centre retrospective review consisting of a radiological review of post-op revision THA anteroposterior pelvis. Data collection was performed using the Irish National Orthopaedic Register (INOR) and from a previous project. We used a technique developed by Fessy et al in 1999 to measure the centre of rotation (COR) of the hip. We then compared our study to that of a study measuring the COR of healthy native hips.

Results: 127 revision THA analysed. Native COR calculated by Fessy et al showed a mean horizontal (x) axis 33.6 mm (standard deviation [SD] 5.74) and a vertical (y) axis 16.4 mm (SD 4.67). Non-TM revisions showed a mean x axis of 29 mm (SD 3.9) and y axis 17.9 (SD 5.9). TM Augments had a mean x axis 29.2 mm (SD 7.9) and y axis of 21.5 (SD 8.4). TM Cups alone had a mean x axis 27 mm (SD 6.9) and y axis 22 mm (SD 10.18).

Conclusions: COR of TM implants showed considerable deviation from the norm. Non-TM implants showed a COR within acceptable physiological range. TM components consistently failed to restore a natural COR in our cohort. The implications of this remain uncertain but must be considered in any decision to use TM.
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http://dx.doi.org/10.5301/hipint.5000503DOI Listing
September 2017

Coloarticular Fistula Associated with a Pseudotumor After Metal-on-Metal Hip Resurfacing Arthroplasty: A Case Report.

JBJS Case Connect 2013 Jul;3(3):3e67

Department of Trauma & Orthopaedic Surgery, Cork University Hospital, Wilton, Cork, Ireland. E-mail address for R. Bruce-Brand:

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http://dx.doi.org/10.2106/JBJS.CC.L.00224DOI Listing
July 2013

Posterior intrafocal pinning for reduction of oblique, extension supracondylar humeral fractures in children: a technical note.

J Orthop Surg (Hong Kong) 2013 Apr;21(1):110-2

Cork University Hospital, Wilton, Cork, Ireland.

A closed reduction technique using a posteriorly inserted intrafocal Kirschner wire for unstable Gartland type-III supracondylar humeral fractures in children is described. This surgical technique has been used in 7 patients. None had neurovascular complications, and all achieved bone union and had good or excellent functional and cosmetic results.
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http://dx.doi.org/10.1177/230949901302100128DOI Listing
April 2013

Inflammatory pseudotumor causing deep vein thrombosis after metal-on-metal hip resurfacing arthroplasty.

J Arthroplasty 2013 Jan 11;28(1):197.e9-12. Epub 2012 Apr 11.

Department of Trauma and Orthopaedics, Cork University Hospital, Cork, Ireland.

Metal-on-metal hip resurfacings have recently been associated with a variety of complications resulting from adverse reaction to metal debris. We report a case of extensive soft tissue necrosis associated with a huge pelvic mass causing extensive deep vein thrombosis of the lower limb secondary to mechanical compression of the iliac vein. This is a rare and unusual cause of deep vein thrombosis after metal-on-metal hip resurfacing arthroplasty.
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http://dx.doi.org/10.1016/j.arth.2012.02.014DOI Listing
January 2013

Component alignment in hip resurfacing using computer navigation.

Clin Orthop Relat Res 2009 Apr 30;467(4):917-22. Epub 2008 Oct 30.

Sportsmed SA, 32 Payneham Road, Stepney, Adelaide, SA 5069, Australia.

The use of computer navigation during hip resurfacing has been proposed to reduce the risk of a malaligned component and notching with subsequent postoperative femoral neck fracture. Femoral component malalignment and notching have been identified as the major factors associated with femoral neck fracture after hip resurfacing. We performed 37 hip resurfacing procedures using an imageless computer navigation system. Preoperatively, we generated a patient-specific computer model of the proximal femur and planned a target angle for placement of the femoral component in the coronal plane. The mean navigation angle after implantation (135.5 degrees) correlated with the target stem-shaft angle (135.4 degrees). After implantation, the mean stem-shaft angle of the femoral component measured by three-dimensional computed tomography (135.1 degrees) correlated with the navigation target stem-shaft angle (135.4 degrees). The computer navigation system generates a reliable model of the proximal femur. It allows accurate placement of the femoral component and provides precise measurement of implant alignment during hip resurfacing, thereby reducing the risk of component malpositioning and femoral neck notching.
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http://dx.doi.org/10.1007/s11999-008-0584-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2650050PMC
April 2009

The outside-in subcutaneous arthroscopically assisted lateral retinacular release: a new technique.

Acta Orthop Belg 2007 Aug;73(4):512-4

Sportsmed SA, Adelaide, Australia.

Arthroscopic lateral retinacular release in the knee has been used extensively for the treatment of patellar pain and instability. The release can be performed using a number of techniques, but achieving access to the retinaculum can often be difficult, particularly in obese patients. We describe a simple modification of an arthroscopically assisted method, which utilises electrosurgery through a subcutanous channel to perform an outside-in release.
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August 2007

Osteochondral fractures in the knee treated with butyl-2-cyanoacrylate glue. A case report.

Acta Orthop Belg 2006 Oct;72(5):641-3

Department of Orthopaedic and Trauma Surgery, Mid Western Regional Hospital, Limerick, Ireland.

We report a new method of fixation of osteochondral fractures using tissue adhesive butyl-2-cyanoacrylate. A traumatic osteochondral fracture of the patella and the medial femoral condyle in a 29-year-old male was fixed with butyl-2-cyanoacrylate tissue adhesive. At 6 month follow-up the fractures showed complete healing, the postoperative knee score was 84 and the functional knee score 90 (Knee Society Clinical Rating System).
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October 2006

Intraoperative arthrometry in anterior cruciate ligament reconstruction.

Acta Orthop Belg 2005 Oct;71(5):565-70

SPORTSMED Institute, SA, Adelaide, Australia.

Arthrometry has an established role in the measurement of knee laxity in anterior cruciate ligament injury and following reconstruction. The role of routine intraoperative arthrometry in anterior cruciate ligament reconstruction is poorly defined, and this study was designed to test the hypothesis that intraoperative arthrometry provides an objective method of documenting successful knee stabilisation following anterior cruciate ligament reconstruction. A consecutive cohort of 100 patients with unilateral isolated anterior cruciate ligament disruption were prospectively evaluated using a Rolimeter arthrometer. A maximal manual force method was utilised by a single examiner. This allowed for side-to-side comparisons with the uninjured contralateral knee. Analysis of tibial translation was recorded preoperatively with patients both awake and asleep, intraoperatively following anterior cruciate ligament reconstruction, and postoperatively at 2 weeks and 3 months. Statistical analysis was performed using Spearman's correlation coefficients. Intraoperative arthrometry of anterior cruciate ligament reconstructed knees revealed statistically significant correlation with measurements of uninjured knees (p < 0.0001). These findings were reproducible at 2 weeks (p < 0.0001) and at 3 months (p = 0.0002). Based on our findings, we conclude that intraoperative arthrometry can be simple and provide reproducible results. It is a useful method of immediately and objectively documenting successful anterior cruciate ligament reconstruction.
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October 2005
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