Gender Disparity between Donor Sites of the Trochlea Used for Autologous Osteoarticular Transfer: An MRI Analysis

2019 ◽  
Vol 33 (04) ◽  
pp. 357-364
Author(s):  
Kelly M. Rogers ◽  
Daniel C. Berman ◽  
Justin W. Griffin ◽  
Kevin F. Bonner

AbstractThe purpose of this study was to assess potential gender differences in size of the lateral and medial trochlea of the male and female knee as well as the variation within gender of potential osteochondral autograft transfer (OAT) donor site area. Two hundred and twelve skeletally mature patients, 106 males and 106 females, who underwent a 3T magnetic resonance imaging of the knee for a variety of indications were utilized for analysis. Exclusion criteria included degenerative arthritis, trochlear dysplasia, and poor image quality. Medial and lateral femoral trochlear cartilage width was obtained using a linear radiologic measurement tool. Widths were measured from a reproducible anatomic location representing the maximal trochlear dimension in a region where donor plugs are commonly harvested. Trochlear width was also plotted as a function of patient height. Statistical analysis was performed using a two-sample t-test. The mean and standard deviation of the lateral trochlear cartilage width (mm) for males and females were 23.38 +/− 2.14 and 20.44 +/− 2.16, respectively (p < 0.00001). The mean and standard deviation of the medial trochlear cartilage width (mm) for males and females were 14.16 +/− 2.17 and 11.78 +/− 2.03, respectively (p < 0.00001). The overall range in trochlear width for both the lateral and medial sides was 22.22 and 19.73 mm for males and females, respectively. A graft measuring 10 mm could represent as little as 34% of the lateral trochlea in males versus as much as 65% in females. Our results indicate that donor OAT plug diameter relative to available trochlear cartilage width will vary significantly both between genders and individual patients. Trochlear width variability and its potential implications on donor site morbidity may be an important consideration when contemplating osteochondral plug harvest for OAT or other indications. The level of evidence is IV.

2017 ◽  
Vol 42 (8) ◽  
pp. 794-798 ◽  
Author(s):  
H. Abdel-Ghani ◽  
M. Mahmoud ◽  
A. Shaheen ◽  
M. Abdel-Wahed

We report the result of treatment of 69 complex clasped thumbs in 39 patients with distal arthrogryposis. The mean age at surgery was 30 months. Surgical reconstruction included skin augmentation of the first web using modified dorsal rotation advancement flap (Abdel-Ghani flap), a la Carte release of tight structures of the first web, and chondrodesis of the thumb metacarpophalangeal joint. The mean follow-up was 4 years. We prefer chondrodesis because of the presence of global instability, abnormal joint structure, abnormal articular surfaces, and inefficient muscles for transfer. Also, chondrodesis shortens the thumb and may alleviate the need for release of deficient palmar skin and lengthening of a short flexor pollicis longus. The Abdel-Ghani flap provides ample skin that gives a wide rounded web. It is a simple procedure with minimal donor site morbidity. Surgical reconstruction significantly improved the cosmetic appearance and function of the thumb. Level of evidence: IV


2021 ◽  
Vol 9 (7_suppl4) ◽  
pp. 2325967121S0024
Author(s):  
Michael Kucharik ◽  
Paul Abraham ◽  
Mark Nazal ◽  
Nathan Varady ◽  
Wendy Meek ◽  
...  

Objectives: Acetabular labral tears distort the architecture of the hip and result in accelerated osteoarthritis and increases in femoroacetabular stress. Uncomplicated tears with preserved, native fibers can be fixed to acetabular bone using labral repair techniques, which have shown improved outcomes when compared to the previous gold standard, labral debridement and resection. If the tear is complex or the labrum is hypoplastic, labral reconstruction techniques can be utilized to add grafted tissue to existing, structurally intact tissue or completely replace a deficient labrum. The ultimate goal is to reconstruct the labrum to restore the labral seal and hip biomechanics. Clinical outcomes using autografts and allografts from multiple sources for segmental and whole labral reconstruction have been reported as successful. However, reconstruction using autografts has been associated with substantial donor-site morbidity. More recently, all-arthroscopic capsular autograft labral reconstruction has been proposed as a way to repair complex or irreparable tears without the downside of donor-site morbidity. Since all-arthroscopic capsular autograft labral reconstruction is a novel technique, there is limited data in the literature on patient outcomes. The purpose of this study is to report outcomes in patients who have undergone this procedure at a minimum 2-year follow-up. Methods: This is a retrospective case series of prospectively collected data on patients who underwent arthroscopic acetabular labral repair by a senior surgeon between December 2013 and May 2017. Patients who failed at least 3 months of conservative therapy and had a symptomatic labral tear on magnetic resonance angiography (MRA) were designated for hip arthroscopy. The inclusion criteria for this study were adult patients age 18 or older who underwent arthroscopic labral repair with capsular autograft labral reconstruction and completion of a minimum 2-year follow-up. Intraoperatively, these patients were found to have a labrum with hypoplastic tissue (width < 5 mm), complex tearing, or frank degeneration of native tissue. Patients with lateral center edge angle (LCEA) ≤ 20° were excluded from analysis. Using the patients’ clinical visit notes with detailed history and physical exam findings, demographic and descriptive data were collected, including age, sex, laterality, body mass index (BMI), and Tönnis grade to evaluate osteoarthritis. Patients completed patient-reported outcome measures and postoperatively at 3 months, 6 months, 12 months, and annually thereafter. Results: A total of 72 hips (69 patients) met inclusion criteria. No patients were excluded. The cohort consisted of 37 (51.4%) male and 35 (48.6%) female patients. The minimum follow-up was 24 months, with an average follow-up of 30.3 ± 13.2 months (range, 24-60). The mean patient age was 44.0 ± 10.4 years (range 21-64), with mean body mass index of 26.3 ± 4.3. The cohort consisted of 6 (8.3%) Tönnis grade 0, 48 (66.7%) Tönnis grade 1, and 18 (25.0%) Tönnis grade 2. Two (2.8%) progressed to total hip arthroplasty. Intraoperatively, 5 (6.9%) patients were classified as Outerbridge I, 14 (19.4%) Outerbridge II, 45 (62.5%) Outerbridge III, and 8 (11.1%) Outerbridge IV. Seventy-two (100.0%) patients had a confirmed labral tear, 34 (47.2%) isolated pincer lesion, 4 (5.6%) isolated CAM lesion, and 27 (37.5%) had both a pincer and CAM lesion. The mean of differences between preoperative and 24-month postoperative follow-up PROMs was 22.5 for mHHS, 17.4 for HOS-ADL, 32.7 for HOS-Sport, 22.9 for NAHS, 33.9 for iHOT-33. (Figure 1) The mean of differences between preoperative and final post-operative follow-up PROMs was 22.1 for mHHS, 17.6 for HOS-ADL, 33.2 for HOS-Sport, 23.3 for NAHS, and 34.2 for iHOT-33. (Table 1) Patient age and presence of femoroacetabular impingement were independently predictive of higher postoperative PROM improvements at final follow-up, whereas Tönnis grade was not. (Table 2) The proportion of patients to achieve the minimally clinically important difference (MCID), substantial clinical benefit (SCB), and patient acceptable symptom state (PASS) thresholds were also calculated. (Table 3) Conclusions: In this study of 72 hips undergoing arthroscopic labral repair with capsular autograft labral reconstruction, we found excellent outcomes that exceeded the MCID thresholds in the majority of patients at an average 30.3 months follow-up. When compared to capsular reconstruction from autografts and allografts, this technique offers the potential advantages of minimized donor-site morbidity and fewer complications, respectively. [Table: see text][Table: see text][Table: see text]


2020 ◽  
Vol 45 (8) ◽  
pp. 842-848
Author(s):  
Satoshi Usami ◽  
Kohei Inami ◽  
Yuichi Hirase ◽  
Hiroki Mori

We present outcomes of using a perforator-based ulnar parametacarpal flap in 25 patients for digital pulp defects. These included 17 free transfers to the thumb, index, middle and ring fingers and eight reverse pedicled transfers to the little fingers. This flap includes a dorsal sensory branch of the ulnar nerve, which was sutured to the digital nerve in all transfers. Each flap had one to three reliable perforators (mean 0.44 mm diameter) to the ulnar parametacarpal region and contained at least one perforator within 2 cm proximal to the palmar digital crease. All the 25 flaps survived completely. Twenty-two patients were followed for 15 months (range 12 to 24), and three were lost to follow-up. The mean static and moving two-point discrimination of the flap was 7 mm and 5 mm, respectively. At the donor site, sensory reinnervation was acceptable. We conclude that ulnar parametacarpal perforator flaps offer sensate, thick and glabrous skin for finger pulp repair, all in a single operative field. Level of evidence: IV


2018 ◽  
Vol 43 (5) ◽  
pp. 546-553 ◽  
Author(s):  
Hui Wang ◽  
Xiaoxi Yang ◽  
Chao Chen ◽  
Bin Wang ◽  
Wei Wang ◽  
...  

The Littler flap has been widely used to repair large pulp defects of the thumb; however, several complications have occurred frequently. In order to reduce these issues, the modified Littler flap innervated by the dorsal branch of the proper digital nerve and the proper digital nerve from the ulnar aspect of the middle finger or the radial aspect of the ring finger were devised in 16 consecutive cases. At the donor site, the defect of the proper digital nerve was repaired with a nerve graft from the proximal portion of the ipsilateral dorsal branch of the proper digital nerve. At the final follow-up, the scores for the static two-point discrimination test, Semmes–Weinstein monofilament test and total active motions in both recipient and donor fingers were nearly normal. This modified Littler flap provides a simple and reliable alternative for treatment of large defects of the thumb pulp with low donor-site morbidity. Level of Evidence: IV


2020 ◽  
Vol 40 (8) ◽  
pp. 829-835 ◽  
Author(s):  
Runlei Zhao ◽  
Bailin Pan ◽  
Hengju Lin ◽  
Yan Long ◽  
Yang An ◽  
...  

Abstract Background The traditional approach of harvesting costal cartilage through a chest wall incision can result in significant donor-site morbidity and usually causes notable scars in Asian patients. This has become the main concern for Asian females seeking rhinoplasty with autologous costal cartilage. Objectives The aim of this study was to investigate the donor-site morbidity of the trans-areola approach for costal cartilage harvest in Asian rhinoplasty and to compare it with the traditional approach. Methods Patients’ records were reviewed to determine whether their rhinoplasties had been performed with either the trans-areola or the traditional approach to costal cartilage harvest. Donor-site morbidity was evaluated 1 year postoperatively via a visual analog scale and the Modified Vancouver Scar Scale. Long-term complications of the trans-areola group were assessed at least 6 months after surgery. Results There were 26 females in the trans-areola group and 35 females in the traditional group; both groups were of similar age and body mass index range. Compared with the traditional group, the trans-areola group had a significantly longer surgery time and a higher pneumothorax rate (7.7% vs 2.9%) but a significantly better scar quality and a higher overall satisfaction. Long-term outcomes and complications of the trans-areola group included significant scars (2/26, 7.7%), concavity of the breast (1/26, 3.8%), and local chest pain/discomfort (1/26, 3.8%). Conclusions Compared with the traditional approach to harvesting costal cartilage in Asian rhinoplasty, patients who underwent the trans-areola approach had less overall donor-site morbidity and higher overall satisfaction. We recommend this technique to patients who meet the inclusion criteria as well as those seeking a better cosmetic outcome. Level of Evidence: 4


2020 ◽  
Vol 45 (7) ◽  
pp. 722-728 ◽  
Author(s):  
Bo Liu ◽  
Shanlin Chen ◽  
Esther Ching San Chow ◽  
Pengcheng Li ◽  
Kun Liu ◽  
...  

We treated 16 patients with 17 hypoplastic thumbs (eight Type IIIB and nine Type IV) using a non-vascularized fourth metatarsal transfer with a rotational flap and multi-staged reconstruction. The average age at the first operation was 24 months. The average follow-up time was 46 months. All patients achieved reasonable hand function and were able to use the reconstructed thumb to grip small and large objects. The operated thumb achieved an average Kapandji score of 6.7 and average pinch strength of 0.9 kg. There were two cases of graft nonunion. All parents are satisfied with the function and appearance of the reconstructed thumb and donor foot. We conclude that non-vascularized fourth metatarsal transfer is a feasible reconstruction method for patients with Types IIIB and IV hypoplastic thumbs. The reconstruction allows for the preservation of a 5-digit hand with reasonable function and appearance and minimal donor site morbidity, although long-term growth of the metatarsals still need to be monitored. Level of evidence: IV


1979 ◽  
Vol 34 (1) ◽  
pp. 11-17 ◽  
Author(s):  
J. W. James

SUMMARYA sex-linked recessive gene with visible effect will first be detected in the hemizygous sex (male). In lines with equal numbers of males and females, when the gene is initially present in a single female the probabifity of detection falls from 2/3 in single pair lines to 0·54 in large lines. The mean and standard deviation of time to detection are almost independent of population size, being about 4/3 and 2/3 respectively. About 98% of all detections occur within three generations, so a gene detected much later than this after the foundation of a selection line is likely to be a new mutant. Higher initial frequencies and selection favouring heterozygotes increase the chance of detection. The time taken is decreased with higher initial frequencies and increased slightly by selection favouring heterozygotes.


2014 ◽  
Vol 40 (4) ◽  
pp. 392-400 ◽  
Author(s):  
H. Y. Erken ◽  
I. Akmaz ◽  
S. Takka ◽  
A. Kiral

We performed a retrospective review of 12 patients with dorsal oblique and transverse amputations of the distal thumb who were treated with a volar cross-finger flap from the index finger. The mean patient follow-up period was 28 months postoperatively (range: 19–43 months). There were no instances of flap loss, infection, or donor site complication in our series. The mean Semmes–Weinstein monofilament testing scores on the injured thumb and the donor site were 0.65 g (range: 0.16–2 g) and 0.51 g (range: 0.16–1 g), respectively. The mean 2-point discrimination testing scores on the injured thumb and the donor site were 4.5 mm (range: 3–8 mm) and 4.3 mm (range: 3–7 mm), respectively. This study suggests that the volar cross-finger flap using the index finger is a reliable technique in repairing dorsal oblique and transverse amputations of the distal thumb. Type of study/level of evidence: Therapeutic IV


2014 ◽  
Vol 151 (5) ◽  
pp. 791-796 ◽  
Author(s):  
Honda Hsu ◽  
Peir-Rong Chen ◽  
Sou-Hsin Chien ◽  
Jiunn-Tat Lee

Objective Analyze the reliability, complications, and donor site morbidity of the proximal lateral leg flap when applied to head and neck reconstruction. Study Design Case series and chart review. Setting Tertiary care teaching hospital. Subjects and Methods Nineteen patients who underwent reconstruction of various head and neck defects with this flap were analyzed. The patient demographics, flap characteristics, method of donor site closure, scars of the donor area, complication rates, as well as functional results at the recipient site were assessed. Results The flap size ranged from 4 × 4 cm to 11 × 8 cm. Vascular pedicle length ranged from 5 to 9 cm. The mean distance of the perforator from the fibula head was 9.2 cm. The mean thickness of this flap was 5.5 mm. All the donor wounds were closed primarily. The flap survival rate was 100%. Conclusion This flap has the advantages of thinness, short harvesting time, minimal donor site morbidity, and primary closure at the donor site when the flap width is less than 6 cm. This flap may be useful for reconstruction in selected patients with small and thin heads and neck defects.


2011 ◽  
Vol 37 (3) ◽  
pp. 251-257 ◽  
Author(s):  
W. C. Wu ◽  
M. W. M. Fok ◽  
K. Y. Fung ◽  
K. H. Tam

Finger joint defects in 16 adults were treated with an autologous osteochondral graft from the base of the second metacarpal, the radial styloid, the base of the third metacarpal or the trapezoid and these patients were followed up from between 12 and 62 months. There was no donor site morbidity. One patient had resorption of the graft and developed pain. The joint was subsequently fused. The mean range of movement was 55.8% of the opposite normal joint. At follow up, 15 patients had no discomfort or mild discomfort. Three had mild narrowing of the joint space and two had slight joint subluxation. Only two patients with concomitant severe injury to the same limb had difficulty performing daily activities. Ten were open injuries and these had poorer outcomes. A hemicondylar defect of a finger joint can be treated using an osteochondral graft obtained from the same hand.


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